Ford's Fusion/Escape 3.0L Misfire Diag & Repair! What Killed The PCM? P0300-P0306
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- čas přidán 26. 04. 2018
- Ford has an issue with plugs, coils, and PCM's on the mid to late 2000's 3.0L's. In this video we show you what the issue is and how to fix it. Enjoy!
- Auta a dopravní prostředky
I was an ASE Certified Master Technician with training and certificates from Ford Motor Company in EEC, SBDS, and electrical systems for twenty years. I want to pay you compliments on your highly intelligent explanation on this particular processor, ignition coils, and spark plug operation. I was waiting for you to explain primary coil winding collapse to secondary high voltage winding, and you did. I would imagine the layperson was like, "Huh?" Again, my compliments to you and your knowledge.
I agree with what you say, but people who don't know how a coil produces high voltage shouldn't be working on cars. That is one of the most fundamental pieces of knowledge.
@@fredbach6039 maybe proper training instead of saying they shouldn't work on cars.
This is absolutely one of the best auto repair channels on YT. I'm slowly working my way through all of your videos.
Wow Bgregg55, that's very nice to say. Thank you very much!
Mike Becker, Senior Instructor
Probably one of the best diagnostic and repair video I've ever found on CZcams! Great job!
Always enjoy ur thorough common sense explanation of a complicated diag and repair, ur the best and thanks for posting
Hey Mark, thanks! You're the best for watching and support our channel. Thanks!
Mike Becker, Senior Technical Instructor
Pure simplicity and absolute logic always show the way, far past a simple OBD code. Nice work!
Hey Monkey Wrench, thanks for watching!
Mike Becker, Senior Instructor
Wow!!!! Mike you are Amazing. Clear, Concise diagnostics, love the troubleshooting method. Wish you had a shop here near me, Thank You and looking foward to more videos.
Just found you, great presentation style, now I have to go back and watch all your videos
Keep up the good work, you’re as good as these guys with one million subscribers
Looking forward to learning from u
I’m a new hobby mechanic with a 01 trooper
Hey Kevin, thanks for watching! I really appreciate the kind words. Maybe someday i'll see a million haha!
Mike Becker, Senior Technical Instructor
Bro u probably just save my 2004 dodge intrepid a trip to the junkyard. I had code's p0300 & p0304 your way of explaining how the coil works and what the wrong gap of a spark plug can do just saved the intrepid thank you I am a subscriber now
Ran across the video while surfing the channels. Great job communicating the process.
Eme nem, so you're telling me you found us on your travel into the rabbit hole? :) Thanks for watching and commenting! If you have any questions...don't hesitate to reach out!
Mike Becker, Senior Technical Instructor
Ahhh, it's like I always say, "The better you maintain a vehicle, the less you repair it". Great job as always Mike. Thanks for your time
That's so very true! Maintenance is cheap compared to repairs. Pay me now, or pay me MORE later! :)
Mike Becker, Senior Technical Instructor
It's not cheap Al, I would call a shop and ask for a quote on this. Everyone labor rate is different.
Mike Becker, Senior Technical Instructor
Thank You. I'm impressed both by the depth of knowledge and the very very well put together presentation.
Thank you very much BlackManOps!
Mike Becker, Senior Instructor
This guy is a Master Mechanic with a capital M - no doubt! Thanks for a the information.. I learned so much from your video
Thanks Douglas! Glad the video was able to help :)
Mike Becker, Senior Technical Instructor
Fantastic presentation from
Start to finish - well done! Clear steps and great info 👍
Hey Gruss, thanks!
Mike Becker, Senior Technical Instructor
You're a great teacher Mike. Look forward to more videos.
Hey Mitchell, thanks!
Mike Becker, Senior Technical Instructor
Great video and good explanation of secondary ignition. Keep up the good work Mike.
Hey Paul, thanks man!!!!
Mike Becker, Senior Technical Instructor
Great job Mike,thanks for taking the time to make the video! 👍
Thanks for taking the time to watch Nick!
Mike Becker, Senior Technical Instructor
I know this is a old Video but i wanted to say ty. I own a 12 mustang 3.7. I was stumped New coils, plugs. Kept melting. I Watched your video Purchased a Noid light. It was PCM !!! My Mustang is more of a weekend / pick my 7 year old from school Car. My Daughter Hates Riding in our other Car the MiniVan. I Ordered 6 motorcraft DG520/ Sp520 plugs. Pcm be here Saturday. So excited. My lesson was changing my coils with cheap Amazon coils that shorted out, Causing it to back feed PCM. I decided to have CircuitBoardMedics fix it..
Hello,
Glad you found the cause or your issue. It sucks your PCM is damaged, but at least you know you will be fixing it correctly!
Thanks for reaching out and sharing your story!
~Ryan
this is absolutely the best explanation I've ever heard someone give . thank you very much I have a young friend that is starting a teaching career in the automotive business and I gave him your CZcams page told him to watch because he could learn a lot from you . do you have a shop? And where are you located ?
Great video...sure it’s a lot of technical stuff....however now I know what the problem is . Pulled a coil out of a 2008 Mercury Sable, looked just like the melted coil you showed. Replaced the coil and all plugs...got OEM plugs. Yes, the car had the original plugs after 85, 000 miles (not really impressed with iridium) now after watching this video I realize that this may be deeper than a simple plug and coil replacement. I will probably contact the Ford dealer to find out if there was any recall on this problem. ....which I doubt. Replacing all plugs on this series engine is a PITA....thanks for the information.....now I know.
Great diagnostics and repair Mike! Very detailed as always! 😀👍
Hey Terry thanks! :)
Mike Becker, Senior Technical Instructor
Love all the detail you show! Always good to think deeper into WHY things happen to apply it down the road in other systems. Burning up expensive parts isn't good!
Thanks Volvo09! Always ask why, we don't learn otherwise! :)
Mike Becker, Senior Technical Instructor
A good example of why you always check tsbs! More importantly you still tested the circuit. good diag!
Exactly! Test don't guess :)
Mike Becker, Senior Technical Instructor
Thank you Mike I look forward for the other videos thank you for your time🌈👀💥👍🌿
I don't want to give it away but that was a great lesson! I loved the visual on the computer as well.
Thanks Wyatt!!
Mike Becker, Senior Technical Instructor
I see your comments on every good channel so I decided I'm going to subscribe to your channel lol
Great run through ignition fundamentals Mike. Thanks for sharing. Steve 👍
Hey Steve, thanks!
Mike Becker, Senior Technical Instructor
Cel po448 on 2006 subie sti had po442 and po456 cleared those .replaced purge control valve and charcoal canister found break in a vacuum hose all set except for annoying po448 code . I'll eventually fiqure it .your videos are helping.worst case it my be the pcm. No worries
great points Mike you coverd the damage and the colloratal damage coil and pcm thanks again
Hey Mark, you can't just stop at the result. Gotta fix the cause too, right!?
Mike Becker, Senior Technical Instructor
Very informative video, thanks for the time you put into this.
Hey Jeffrey, thanks for watching!
Mike Becker, Senior Instructor
Impressive troubleshooting and instruction.!
Thank you very much VideoGrabBag!
Mike Becker, Senior Instructor
I have a misfire on cylinder 1, also getting code for primary/secondary A, saw that coil for cylinder 1 was melted so I replaced all coils and spark plugs but still melted new coil on cylinder 1, any idea what’s happening?
have a 2014 cruze 1.4L has a coil pack my problem it's that burnt the coil in cylinder 1 and also the coil fuse after like a min. of start up,
My question is, do you think the pcm is holding the control to long on groung and over-charging the coil ??? or it could be the engine ground ???
great video very informative with how to troubleshoot keep up the great videos
Thank you very much Janusz!!!
Mike Becker, Senior Technical Instructor
Professor Mike performing his macarena dance moves 6:53. Pink paint on the end of the spark plug is a good tip, thanks for sharing. haha Another great job with the vid Mr. Becker!
Thanks Glen! You gotta see these dance moves, see if you can keep up!
Mike Becker, Senior Technical Instructor
really enjoyed this episode, thank you!
Hey Buku2008, thanks for watching!
Mike Becker, Senior Instructor
Good logic. Good idea to test for a shorted pcm. I like your testing with a filament bulb to draw real current. But we can't really read your multimeter.
Hey Fred, yeh I noticed that while editing :( Sorry! Glad you enjoyed the class though!
Mike Becker, Senior Technical Instructor
Hey I have a question, what's the difference between continuous and on-demand codes?
I have 2009 Ford escape 3.0l . P0304 code . Changed spark plugs , 98,000 km I have & they’ve never been changed. 6. Cylinder spark plug was full inside and around coils of spark plug ? After changing only front 3 spark plugs 4,5,6 and swapping ignition coils etc the new spark plug cylinder 6 full of oil inside and around coil part . Why am I not getting a P0306 code ??? Engine light flashing when leave at 1500 rpm for 30-45 seconds. After at idle rpms the engine light stops flashing? Assuming oil is coming up at higher rpm and dropping at normal rpm ? Any advice TIA no fuel etc odour no white , dark smoke ? TIA
New to your channel. I have a question. What if instead of it having power to the coil I am getting no power to the coil. Would this be the same problem with the pcm or a bad wire to the coil. Thanks
Do you have a video that shows you pulling the connector on the PCM? I can't see what you're doing there and I don't want to mess anything up.
Mike, great diagnostics and explanation thanks for sharing. cheeeers
Hey J Georges! Thanks, cheeeeeeeeeeeeeeeeers!
Mike Becker, Senior Technical Instructor
Great video. Thanks for putting this together.
Thanks for watching! :)
Mike Becker, Senior Technical Instructor
Awesome vid very accurate thank you you have a great Channel keep it up buddy
Hey Veternadd214, thank you for watching!
Mike Becker, Senior Technical Instructor
thanks for details , good info , I do have 3.0 ford 2004 that now and then shot misfire code.
Thanks for watching Tonyj.
Mike Becker, Senior Technical Instructor
I have the same issue I am going to send it to be rebuilt. Will it be ready to go or do I have to reprogram it?
Good explanations. Thanks for your videos. Great
Thank you for watching, glad you liked it!
Mike Becker, Senior Technical Instructor
I was doing great diagnosing cyl 3 short to ground on my 2016 f150 3.5l non turbo using your vid. UNTIL about 12:45..... My ohm read high on cyl 3 and zero on know good cyl. You show the known good cyl should read HIGH and bad should read LOW. Then my brain exploded.
Any thoughts on why I would read high on bad cyl and zero on known good?
PLEASE....I NEED HELP. 2012 FORD FUSION 3.0 WITH NO COMM, NO CRANK, NO START. THE PCM RELAY IS NOT WAKING UP. IF I GIVE GROUND TO THE PCM RELAY, THE CAR PCM WAKES UP. I BELIEVE IT IS NOT RECEIVING AN IGNITION SIGNAL? ANY IDEAS? PLEASE HELP THANK YOU IN ADVANCE.
paint marker is used as a visual on the assembly line. each plug installer has their own color. when the plug (or bolt or fastener) is installed and torqued it is paint markered. thus eliminating problems with breaks.shift change lunch etc. if you see its not paint markered. you can stop the assembly line and correct it before it gets out the door
Hey Richard, thanks for that insight! That totally makes sense!
Mike Becker, Senior Technical Instructor
You didn't mention which brand coil you were using so how can we tell if we're getting a high quality coil or not?
The problem with this coil on plug design is that one ignition coil (primary winding - secondary winding) is assigned to each plug. If that setup (spark plug, etc) cannot discharge the stored energy in the coil / secondary winding, it will continue to build secondary energy until discharge or overheating occurs. This leads to higher current draw in the primary winding which can eventually destroy the delicate electronic circuitry of the spark plug driver circuits in the PCM (powertrain control module).
Back in the "good ole days" of distributors you had one coil for a 4 , 6, or 8 cylinder engine. If one or more plugs did not fire properly and discharge the current in the coil secondary winding, there were other plugs that would discharge the energy. When distributors were made obsolete spark plugs were paired and fired together. Each cylinder had a spark plug that was paired with another cylinder 360 degrees out of phase firing order that would fire on its exhaust stroke. If one cylinder spark plug did not fire its mate would fire and discharge the energy in the coil and thus protect the coil from this type of failure.
As others have mentioned engineering needs to add more current limiting software checks and diagnostics to prevent this expensive repair from happening with coil on plug ignition. Of course this type of failure typically happens after the 3 year - 36,000 mile bumper to bumper warranty expires and so the auto manufacturer is not responsible.
Hey ACarl, what is it that causes the coil not to be able to discharge it's energy? As the coil works harder, due to high secondary resistance it increases in heat, this heat leads to shorting of the coil winding, leading to lower resistance, leading to more amps through the PCM driver...which is what forces it to melt either open or closed to ground.
As for engineering adding current limiting, many PCMs have it. This one did not. Also, newer smart coils (3-5 wire coils) take the heavy lifting away from the PCM. At that point it's simply a command signal between the coil and PCM really limiting any chance of failure inside the PCM. Thanks for watching and commenting! :)
Mike Becker, Senior Technical Instructor
Mike, I was really surprised to see the design of this coil -- secondary coil connected to the PCM! Usually it is connected to ground, but here where does the secondary flyback go? To the battery positive through the primary -- and if not fast enough, zapping transistor in the PCM! IMHO, this circuitry is designed to fail when spark plug is disconnected or its gap is too large. Interested to hear your thoughts on this.
Another point... is about the short-to-ground diagnostics. Isn't it possible that the suspect wire is touching another wire that, in turn, is grounded by the PCM? When you disconnect the PCM plug, the second wire loses ground, and the suspect wire becomes open loop. I know, it's highly unlikely, but it is just a debugger in me talking -- gotta enumerate all possibilities :) Thanks for a great video!
Hey Dmitriy, the secondary isn't really connected to the PCM. The primary coil is. Power flows into the primary at all times the key is on, PCM grounds and the primary builds a charge. PCM releases the ground and the charge has to find a path to ground. It jumps to the secondary windings, across the spark plug gap, through the block and back to battery negative. The PCM driver doesn't see that huge KV kick.
That is true, if the PCM was holding a circuit to ground and the wire I was looking at was touching that one, sure its possible. But let me ask you this...are there any PCM circuits that will hold to ground inside the PCM with the key turned off? The PCM ground circuits sure, but anything else? Highly unlikely, but you are right, totally possible. So in this instance you would rip up the ENTIRE harness to verify its not touching somewhere in the middle?
Mike Becker, Senior Technical Instructor
Mike, at 6:30 in the video the diagram seems to show a lead of secondary winding connected to a lead of the primary winding, then they go to the PCM. Can you confirm this? Under this assumption things can sometimes go really wrong -- I've done a circuit simulation, you can see it in just-posted video on my channel if you are interested.
For the wiring integrity question, is it possible to connect to the corresponding pin at the PCM directly and check continuity to any of the PCM ground pins? That would be a bullet-proof test, but how cumbersome is it?'
Thanks for taking the time to answer our questions!
P.S. By the way, speaking about the wires, how are the test wires under your truck doing?
" . . . . But let me ask you this...are there any PCM circuits that will hold to ground inside the PCM with the key turned off? . . . . "
Yes. Evaporative emissions system SMALL leak scenario will test with the ignition key in OFF position. The instructor has commented frequently about a FRONT DOOR and BACK DOOR to vehicle evaporative emissions systems. The BACK DOOR is the vent solenoid to the tank. The PCM will ground that vent solenoid valve for a short period of time after ignition set to OFF. A test can be run to check if the fuel tank, vapor lines and other components of the evaporative emissions control system will hold a vacuum for a certain period of time. These circuits are very low amperage (milliamp range) so no real threat to the PCM circuitry.
low compression in one of your cylinders cause a burnt ignition coil?
Great job, really enjoyed it!
Hey Fausto, thanks for watching!!!
Mike Becker, Senior Technical Instructor
Hi Mike. I like thousands of others have had this problem with my 07 Ford fusion sel 3.0 L. I just started having this problem and replaced the faulty coils and plugs. Should I try clearing my PCM before I remove it and send it out to be repaired? Wonderful video and explanations. Keep up the great work.
Hey J Rod, sure you can try to perform a clearing of the PCM. It may or may not work. Maybe you caught it early enough and everything will be ok?
Mike Becker, Senior Technical Instructor
Did you ever get the pcm repaired? Any idea of what that costs?
I have an 07 SE 3.0L and should probably replace coils and plugs. Dont want anything to happen. 135k miles
Great video. This guy is sharp!
Informative. Thank you.
Stay safe and healthy.
Hi mrza,
Glad you enjoyed it!
Thanks for supporting the channel!
~Ryan Wilsing
Well done video. Very informative.
Thank you very much Gregg!
Mike Becker, Senior Instructor
Awesome work Mike!!
Hey Daniel thanks!
Mike Becker, Senior Technical Instructor
great explanation! you think if the ecu is unplugged it would be safe to do a resistance test on wires with 100v soak? every test you've shown ive tried multiple times with different results each time.
Hey Sean, thanks! You could load test the wires. Hook power to one side, a load like a bulb to the other and then to ground. That way you make sure the wiring is ok...again that's with both sides of the circuit disconnected.
Mike Becker, Senior Technical Instructor
Just an FYI. Because Ford knows there’s a problem, they offer a kit which includes; six coils, six spark plugs, upper plenum and throttle body gasket for around $275.
That's really good info to know Carroll, thanks!!!
Mike Becker, Senior Instructor
Carroll, do you have a link for this kit?
give me the part number for the kit ? I just called Ford dealership and they had no such kit
Any idea if this kit still exists?
Absolutely fantastic video!
Hey Dan, thanks man!!!
Mike Becker, Senior Technical Instructor
@@GoTechTraining wanted to come back and say thanks again. Used information in this video to have a local electronics repair place swap the damaged transistor and sense resistor for me. Runs like a charm, saved a lot of money, cant thank you enough Mike!
Had similar problem with an fusion , cant remember the year at the moment but was early to mid 2000's , except the PCM driver on the car i was fixing was burnt open. Coil didnt show any visual sign of overheating though.
I opened up pcm also and found same results , drive transistor was cooked .Problem was on one of the rear cylinders. By then ford had updated the coils and pcm . Very expensive repair !!
Hey Anthony, open circuit is ideal in this situation. That way the car won't start on fire. Thanks for watching!
Mike Becker, Senior Instructor
We experienced this on our 03 Ford Escape 3.0L V6 but worst case scenario. Engine harness are melted and also the FICM (Fuel Injection Control Module) harness, Coil packs fried, PCM malfuntion (not letting the OBDII scanner diagnose/read errors execpt the pending/saved codes before the PCM lost everything), Alternator with regulator fried, saved error codes are throttle body sensor, coolant temp sensor, Transmission shift solenoid error and idle air control valve error. To this day 2023 we're changing parts from harnesses and all the mentioned parts that failed got replaced and now we're installing new coils and spark plugs before putting a new PCM on the way. The engine harness near the exhaust probably started it and this 1st gen Escapes had flimsy and skinny grounding wires we replaced and that crappy battery terminal with quality gauge 2 wires with quick disconnect terminals. We also retapped the threads of body grounding locations like everything from engine to body, transmission to body, alternator and battery grounding, the head lights, and inside the cabin grounding down the passenger side lower peeler panel. This is a well known problems with this 3.0L V6 we got ours the worst and made our research a bit too late 😢😢
Good job explaining 👏 👍
Hey Chuck,
Glad you liked it! Thanks for watching!
~Ryan Wilsing
Great explanation..
I have a 2012 Lincoln MKX. I have a bad pcm. Anyone know where to find one at? Or for mine to get flashed? Thanks
I'm sure a lot of people put off changing the spark plugs because the upper intake has to be removed to access the rear bank. I can understand why engines like the GM 3.1, 3.4, and 3.8 had a separate ignition module from the PCM. In a worst-case scenario like this, the ICM is like a "sacrificial" module that would get destroyed, but the PCM would be saved. On those engines, the ICM is plug-and-play and requires no programming, so the repair is more cost-effective. In my opinion, older GM engineers were good at anticipating owner neglect of vehicles and designed them accordingly.
Joseph, that does make sense. Newer coils, smart coils, don't make the PCM do the heavy lifting anymore. So, it's less likely to get killed off by a coil.
Mike Becker, Senior Technical Instructor
excellent video Mike
Thanks Jeremy!
Mike Becker, Senior Technical Instructor
Great video ,Mike
Thanks Hein!
Mike Becker, Senior Technical Instructor
Thanks Mike! Good info!
Thanks for watching!
Mike Becker, Senior Technical Instructor
Nice job Mike, thank you.
Hey Don, thanks!
Mike Becker, Senior Technical Instructor
Awesome video!!!!!!! I'm chasing a P0301 on a 2009 Escape w/2.5L and 178K miles. Found the spark plug well filled with oil, thought I had the cause in the bag. So with 178K miles and recognizing original parts I opted for 4 new Motorcraft DG-522 coils, 4 new Motorcraft SP-30 plugs and a new Fel-Pro valve cover gasket. STILL GETTING P0301 with cheap scanner tool counts in the hundreds per day. Going to look at a possible injector problem. Your video offered a LOT of insight to look at the PCM driver for cylinder 1. Can you offer any other pearls of wisdom?? Thank you!!!!!!!!
Hello Dale,
Sounds like a fun diagnostic challenge!
I would also check for valve leakage on 2.5L ford engines with higher mileage. Check out our video for more info czcams.com/video/Dzy-EzxIreg/video.html .
Ryan Wilsing, Technical Instructor
@@GoTechTraining Thank you for the advice!! You guys have great videos!!
Wow 😯 great video well explained thank you
Thank you very much Christian!!
Mike Becker, Senior Technical Instructor
Great Video and cant believe you dont have a AES wave lead kit lol. Like your multimeter leads though I need some of those
I do have it! Should have used it here!!!! Ugh, sometimes i'm too caught up in the moment haha!
Mike Becker, Senior Technical Instructor
Very informative, Mike. This video answers a lot of my questions. One question though. Besides the coatings being melted causing the short, couldn't the expansion of the coils from heat cause them to touch each other and facilitate the creation of the short as well?
Hey Littlebear Gaming, great! The coil is all sealed up in epoxy, the wingdings expand and contract at the same rate. Overheating though, will melt the coating that is on the windings and cause them to short together.
Mike Becker, Senior Technical Instructor
Thank you, Mike.
thanks for going into details.
Thanks for watching Furqan!
Mike Becker, Senior Technical Instructor
Thank you for this video !!
Could not agree more about the spark plugs.It is often an item that can do untold damage to the system. A lot of car owners will only call for a replacement when the engine gives trouble and then it's too late. The price of 6 coils , 1 pcm and labour against the price of 6 sparkplugs is really a no brainer. Like the final look at the pcm electronics.
Hey Tom, I could not agree more! The old saying "pay me now, or pay me more later!"
Mike Becker, Senior Technical Instructor
Yup, I'm here, doing that. Verified damaged PCM. Now if I can just figure out the numbers to get a replacement, not as easy where I live.
Ford was aware of this problem and the potential for thousands of damaged PCM's, soon after most warrenties were expiring. Fearing fall out or possible recall they extended warrenties on plug coil packs to 8 yrs or 80, 000 miles but only if original owner, or some shit. Pre PCM damage. The fact that no one has died or been seriously injured can only be explained by lack of reporting because most mechanics didn't know. Repairing coil packs & plugs doesn't fix it. That's a guess based on mechanics early findings. $900, all new coils & plugs. Still replacing sensors, charging batteries, chasing dummy lights and parasitic draws. But what do I know? I'm just a woman that started looking into the problem online. There's not enough people doing that to get the class action suit off the ground but there is an established real safety concern in the 100's of accounts, like mine, on nhs tab page. Where the car loses power, at random, at 70 mph on the highway, making a left hand turn, merging into traffic, crossing an intersection, while in the wilderness. Losing power to your 2 ton, deadliest machine known to human kind, iis negligent & criminal . Because in Ford's own words. It starts to be a problem after warranty. Even some of Ford s own are too prideful or lazy to dig deeper.
After explaining my situation and still experiencing 4 of 5 symptoms laid out in TSB. I broke & paid the $145 diagnostic fee (credited towards repair😕) at Ford dealer . AGAIN, I explained my findings after the $900 repair with the local mechanic didn't work.
They got my diagnosis fee & nothing more. Shameful. After looking at their estimate of over $400 to replace the FRPS. Just another sensor gone bad. That's what their computer said . When I asked if they would be willing to stand by that repair & give me 3 months warranty. If I was to throw another sensor in that time, they would do PCM repair for 1/2 price. They laughed at the stupid middle aged, single mom driving a 2005 vehicle and expecting it to get me over 100k miles before major repair . Maybe pass it down to my daughter. Like my mom had done for me.
I did a quick look up & watched a couple videos of awesome mechanics, like these, on you tube. $32.00, 2 screws, lube and 10 minutes later I HAD FIXED IT MYSELF .
Growing up in Michigan, with a families small business able to provide my brother & I college efucations. I was taught to buy local from your neighbors or the companies they worked for that PAID taxes & were invested in your community. That you may pay a little more than at large super stores. But it will come back full circle. Those days are gone, I'm afraid. Our entire landscape is s forever changed. This is the 5th Ford SUV in my 4 decades of driving. This the first that wasn't handed down to me by a 5000 mile a year mom. I did my research, I'd thought. KBB, FORD FORUMS, CARFAX, CONSUMERS REPORT, ETC This is highlighted on only one sight giving ratings on used cars. (I'm trying to change that). I wasn't nor were my daughter's, taken for their driver's test until they knew how to change a tire, check & add fluids, and demonstrate safety checks before road trips. I drove 50,000 miles a year, for 20 years. Each if the 4 previous models I proudly sold, over 150,000 miles, running like a top. Wear & tear but some of us go for the no payments, low insurance costs by choice or need, and find it worth the low cost, out of pocket, maintenance. To not worry about going over our lease miles or repo man if sick for a week.
Like so many things these days ....profits have preceeded pride in Corporate America. Make a car that lasts over 100k with regular maintenance. Is just bad for the bottom line anymore. Disposable economy is destroying trust & good will, not to mention the planet.
Sorry for the rant. After a worry free 3 months (keeping track of miles on odo cuz obd doesn't match reality) or computer unable to clear code. What code? Oh, that 2as last month . No codes this week. But am again without transportation for 48 hours while I trickle charge the completely dead battery. That I now must disconnect every night or parasite will deplete it again.
I can't get a good feel for if throwing more money, in the way of junkyard or flashed unit can work? It's my understanding that reprogramming software is notoriously tricky and or a gamble. But then I saw where an updated release of the software was made available just Dec. 22, 2021. Idk if license required but just ss
Great video Mike! Thx 👍
Thanks Dylan!
Mike Becker, Senior Technical Instructor
What website or program did you use for the wiring dygrams? I don't see it the description
Hey Daniel, I use AllDatapro and Identifix for all of my service information needs.
Mike Becker, Senior Instructor
Well done Mike!
Thanks for watching!
Mike Becker, Senior Technical Instructor
135k on a set of plugs? That's just car abuse! Great video. Thanks.
Hey, I could not agree more! Thanks for watching!
Mike Becker, Senior Technical Instructor
Awesome video. Very helpful -- thank you.
Hey Paul, Thanks for watching!
Mike Becker, Senior Instructor
@@GoTechTraining I have a question maybe you can help me with -- I had the coils and plugs replaced for this issue but the issue persisted due to the damaged pcm. I drove the car for about 1 mile from the garage to my home. Do I now need to do the entire job over again with PCM or is it possible that the coils and plugs are ok and I can just replace the PCM.
Great video. Doesn’t look like ford really identifies the cause. I agree with your hypothesis with the coil first thing to go bad but ford should give a reason.
You're right, it doesn't really put a nail in the coffin of what is the CORE cause. I wish they would, but we can only deal with the information at hand.
Mike Becker, Senior Technical Instructor
great info well explained, thanks
Thanks for watching Phantom Explorer!
Mike Becker, Senior Technical Instructor
One tired engineer had commented that the maintenance light should be connected to a sparkplug coil in the driver seat :)
Haha that's one way to make it happen. I like how on new cars the factory remote start doesn't work with the engine light on. That's a good way to get people to come in. Next maybe they should disable the radio!
Mike Becker, Senior Technical Instructor
Good info, thanks alot.
I have the same issue on injector 6 ran the ohm test as you suggested numbers on 6 4 and 2 numbers going crazy as shown in your video as well. Disconnected connector to pcm all were showing OL. Only issue that has me scratching my head is that the coil pack on cyl 6 is perfectly fine no burns or signs of melting. Do you think it’s possible that cyl 6 injector itself is the issue? I will swap cyl 6 and cyl 4 to see if cyl 6 is the issue tomorrow. Thoughts or suggestions? Vehicle is a 2010 Fusion 3.0 V6.
Hey Egonzo, it's possible you could have coil failure without a bad driver and the coil looking fine. Swapping should confirm it for you.
Mike Becker, Senior Instructor
Dang i wish i would have seen this before i just replaced , pcm , coils, and plugs. Saved over 2000 doing it myself. But was still 1250 bucks. I measured the old plugs. Half of them were over .60.... I went through a place called circuit board medics and they were awesome. Paid for next day shipping which was more than reasonable. Dealership wanted more for the pcm than what I paid for everything. Anyways good video.
Does this solves the problem with misfire cylinder 1 problem on 2010 ford fusion hybrid? Because my shows misfire cylinder 1 as a critical problem in my car.
David, it might. A misfire can be caused by a bunch of things.
Mike Becker, Senior Technical Instructor
Sir, You are The Maestro :)
Haha thanks Leslie!
Mike Becker, Senior Technical Instructor
This is a great instructional video!. I have codes P0300, P0304, P0305, P0306, P0355, P0606. Coil 6 looks fine, No Noid light on cyl 6, If I connect my test light to the positive battery terminal, key off, I get a light on the grey wire across cyl's 4, 5, and 6. Not part of the diagnostic you did. ( I haven't looked at the rear bank yet. ) Is that normal? I do get the test light when connected to the negative battery terminal, key on, across the three GY wires as expected.
Hey Loren Jackson, If the GY wire is the same across all of the coils then that's most likely the main power feed. You should see power on that any time the key is on. The ground side is what controls the coil turning on and off.
Mike Becker, Senior Technical Instructor
I had codes showing misfires on cylinders 2 and 4. The PCM tested faulty when swapping front coils, so I sent the PCM off to repair, and replaced all original (2005) spark plugs and coils. After replacing the upper intake, and checking for air leaks, it started right up. But now its starting to run rough. Bummer, I forgot to change PCV valve on the intake, so now I'll be back pulling the intake, replacing the PCV and any bad vaccum lines.
Hey Greg, smart to replace them all. How long did it take to get the PCM fixed and back? Sounds like a bit of a lengthy process.
Mike Becker, Senior Technical Instructor
Wow smart for your age bro well done 👏
Great work mike,you should make video of programing this pcm too
I will at some point! Stay tuned :)
Mike Becker, Senior Technical Instructor
Hey there, watched this video and I’m having a slightly different issue than you are. My vehicle was bought at auction with two misfires, on cylinders 4&5. I replaced coil and plugs on all cylinders to be safe, with none of my coils having any signs of being burned/worn out and I am still throwing a code for cylinder 5 and misfiring hard. On the test light test, my cylinder 5 is still having issues. The lead at the battery negative to the green colored insert, equivalent of the purple connector on cylinder 6, has a light on connection identical to your testing. My problem is that my ohm testing doesn’t show the same signs that yours did and doesn’t have any sign of continuity on my problem cylinder. What would you recommend from this point if anything?
Eric, thanks for watching! I think you're saying that the ground side control wires for coil 5 and 6 are both shorted to ground. Is that correct? the short can be a direct short from harness to ground or internal to the PCM. If the light still lights with the PCM disconnected then your short is not in the PCM. Make sense?
Mike Becker, Senior Technical Instructor
NGK Technical Training Hey Mike, only mentioned cylinder 6 since it was the one that you were testing and wanted to make sure people could know which wire on my coil connection that I was talking about! My only issue is cylinder 5. I don’t think that I was thorough in my testing before commenting, after going back and trying again I’m now replicating the issue that you received on your scenario with your ohm testing, which has me believing it is the PCM for my vehicle. Thanks for the excellent video and incredible detail!
Eric, awesome! Glad you were able to get to the bottom of it. Remember that the PCM needs to be programmed and you need 2 keys at the time of programming as well.
Mike Becker, Senior Technical Instructor
I have a 2007 Mercury Mariner and had a front right cylinder coil that burned and the maintenance facility changed out all 6 coil, plugs and computer. A couple of months later had the same problem. Could there be a short or some other kind of a problem that’s killing the computer and burning out that same coil? Thanks
Hey Larry, that's not good! The spark plugs were the proper plugs? Coils, plugs, and a NEW computer should fix it. Make sure they installed a good new computer with the most recent software updates. It's possible that a remanufactured computer could have some issues maybe. Just my guess.
Mike Becker, Senior Technical Instructor
Wells Vehicle Electronics. Thanks mike. They did try a different computer and have the same results. Would it be worthwhile to move the vehicle to another facility that would have diagnostic capability to check out the wiring. Thanks
Thank you for the great presentation. Can the same testing be applicable to a 2002 Ford Taurus with the six coil pack. I did enjoy your presentation!
Hey Leo, thanks for watching. The 6 pack coil is a little bit different..that uses waste spark, so there's only 3 control circuits going back to the PCM there.
Mike Becker, Senior Instructor
Hello, Mike. As usual, nice presentation and very informative. I am trying to understand why you get ground with the battery disconnected and also if the positive battery cable is shorted to ground, is the engine block becomes power and causes spark at the negative battery cable when you try to connect it? As the negative now becomes shorted.
Thank you.
Hey Carlo, thanks for watching! When the battery is disconnected we no longer have "ground." I believe you are talking about the OHM test to "ground." All that is doing is showing there is a path for flow to what is normally ground. If the positive cable were shorted to ground you would melt something or possibly even start a fire. Direct shorting the positive cable to ground essentially turns it into a welder.
Mike Becker, Senior Technical Instructor
Thank you for replying, Mike. The reason I asked about the positive cable is that one tech installed a starter and the positive cable at the starter touched ground, resulting in spark at the negative battery cable. I was just trying to understand how you get sparks at the negative battery terminal from a shorted positive cable. Thanks again!
Sparks can happen anytime you have a connection issue in the circuit. The positive and negative cable both pass the current. A circuit is a circle...you can get sparks in any part of it because the current is constant through the circle.
Mike Becker, Senior Technical Instructor
Thank you for this brilliant explanation, Mike. I would have never figured that out on my own.
I have a 06 mariner with 3.0 I have misfire in the number 3 I replaced the coil and spark plug but still misfire in the same cylinder what else can be? And the engine is not idling roughly
Hey Soto's, is the coil being controlled by the PCM? DOes the cylinder have compression?
Mike Becker, Senior Instructor
Hi, Thanks for sharing. I have a Question that maybe could be a silly doubt. I have a MAzda tribute 2005, same like FORD escape 3.0 engine and the coil #4 is completely burned, with smoke and everything twice. What kind of failure could burn the same coil twice? Should I replace the PCM? or just put another coil there from different brand or quality? Thanks again.
Hey George, could be an inferior design coil. Did you replace the spark plug? That's usually what causes it. Grab an NGK coil and throw it in there. You won't be disappointed. U5060 is the part #.
Mike Becker, Senior Technical Instructor
@@GoTechTraining Thanks, was the signal wire defective, making contact with ground in some positions. Replace this wire from PCM plug (Green and purple Cilynder 4) and ready to go.
Fixed with your advice. Green purple wire was making ground intermitent when I move with engine off. Replace that wire from PCM plug straight to coil and now run perfect!? Thanks, I owe you one!