2001 Ford F-250 Misfire Troubleshooting (with MAF and IAT codes)
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- čas přidán 11. 06. 2018
- MAF, IAT and Misfire Trouble codes: In this video I show you how to quickly test the MAF and IAT sensors, then verify the cause of the misfire (spark, fuel and compression), Then we focus on the ignition coil and how to test it.
Video breakdown:
- 1:03 cranking compression sound test
- 2:00 snap-throttle tests for a misfire, surge problem found
- 2:54 trouble codes P0113, P0102, P0308
- 3:56 MAF sensor testing and normal operating range
- 4:53 IAT (thermistor) scan data unplugged reaadings
- 5:25 SD Premium reference for Chapters 6 and 12
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- 5:53 MAF sensor connector
- 7:31 MAF voltage on scan tool during snap-throttle test
- 7:52 beginning of misfire diagnostics
- 8:55 using fuel trim to determine spark or fuel misfire
- 10:23 global OBD II mode 6 data (test ID $53)
- 11:26 advice for my friend on what to do to fix this truck, review of the tests we did
- 13:15 ignition coil current test from the fuse box
- 14:07 in line fuse jumpers pros and cons
- 19:05 videos on shorted coils on Fords
• Ford 5.4 shorted coil ...
• How to find a shorted ...
- 20:18 power balance (cylinder contribution test) with scan tool
- 21:38 under hood testing begins of the ignition system
- 22:30 RPM drop test by unplugging coils
- 23:22 visual inspection on the number 8 coil
- 24:22 spark test with a test light on the #8 coil
- 27:45 ScannerDanner Premium link
- 30:04 spark test on a known good coil for comparison
ScannerDanner Tools:
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For more information on this topic, I have written a “field manual” called Engine Performance Diagnostics which is available at www.scannerdanner.com as an eBook or paper book.
Want even more diagnostic training? Whether you are a DIY trying to fix your own car, someone looking to become an auto technician, or a current auto technician that wants to get more into diagnostics, subscribe to ScannerDanner Premium www.scannerdanner.com/join-sc... There is a 14 day free trial.
On ScannerDanner Premium I will bring you right into my classroom at Rosedale Technical College. You will find page for page lectures taken right from my book as well as exclusive classroom type case studies. What is so special about these classroom case studies? I pull live problem vehicles directly into my classroom and we troubleshoot them in real time, using and applying the theory and testing procedures we learn during the classroom lectures. There is no better on-line training of how to troubleshoot automotive electrical and electronics systems anywhere!
Disclaimer:
Due to factors beyond the control of ScannerDanner LLC, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. ScannerDanner LLC assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. ScannerDanner LLC recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of ScannerDanner LLC, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not ScannerDanner LLC. - Auta a dopravní prostředky
Just another great video Paul!
If I may...
Any techs in Toronto, Canada looking for a job or a change - reason not required.
If you're watching this you may be worth your salt.
Willing to pay top dollar for an honest, passionate and skilled tech.
Respond here and I'll get back to you.
Here, I'll pin this for you. This is awesome
Man I wish I was a tech, I'd love to do that. I'm near london. Learning soooo much from Paul. Eric O, Keith, Ivan, Mike Becker, Matt, Duane, and the list goes on. I'm getting pretty decent. My hats off to all of YOU guys!!! Paul I have your hardcover book from a couple years ago. Has it been updated since? Or even the Ebook?
ScannerDanner
Thanks Paul, that's very kind and undoubtedly helpful.
Your hard work, I'm sure, is appreciated by all.
In my opinion, occupying your son's time, at that age - even if he chooses a different career path is priceless.
Keep the vids coming!
5 years on and this is still very informative. Great job
Thank you!
It's really good to see someone so passionate about educating others that have the interest, and really taking the extra effort to demonstrate and simplify the concepts that he describes.
you always go the extra mile and thats the difference you make for all of us learning. Not just teaching valuable diagnostics but also attitude
Thank you Jason
lol paul you sound like billy mays "but wait....there's more....." good stuff there
Your videos always flow nicely. Between the excellent camera work, commentary, editing, description box and reference to the chapters in your book the 32 minutes flew by.
I just diag'ed a a bad cap & rotor on a '96 Tahoe using your test light method - I had been working on cars over 25 years before I found your channel, and never even thought to use one that way! It works great. That's my go-to spark tester now - quick and easy! I also used to refuse any vehicles built after '95 before I found your channel, too. 😁
Tahoe had a double-dead miss - #'s 2 & 8 were completely dead. Spark was very weak and intermittent - could barely make a 1/4" gap. Turns out there's a TSB for corrosion in the distributor on those due to bad venting. The rotor contacts had white fuzz all over them - never saw one that bad! But, that wasn't the actual cause of the miss - it was internal to the cap (I just had to clean the contacts and try, lol). New cap and rotor, and it's fixed. 👍 Nice n easy!
Great stuff Paul, as usual. I'm looking forward to Part 2 of that Lexus on your Premium Channel. 😎
I am a professional tech and in my only four years of experience I have become the “go to” diag tech for both shops that I have worked at. My diag skills are top notch and a lot of it I have to thank Scanner Danner for.
Great job Paul, I like the way it's reinforced that you cannot always rely on the ignition coil current waveforms to identify a Weak Coil. You proved that by doing the ultimate test, check the Spark jump at the spark plug, that test doesn't lie. Awesome !!!!
No matter how much knowledge I have, your videos always teach me something new.
Paul,
Just wanted to thank you for these tools I work on my own cars as a hobby and purchased a Modis scan tool that I learned to use from watching your verus video's. My F250 was purchased with what I thought was a bad transmission shaking when in overdrive. I put the scantool on and saw issues with 7 and 9 , quick check and the cop's were the fault. That 10 minute diagnosis made the hobby fun!
Thorough diagnosis, Paul. Video well done, Caleb. You're getting better with each video. For some reason all of the V10 Fords i work on all idle fast.
The insight you provide between your procedures and the results is what really sets you in a league of your own as a teacher... let alone an author and video producer!
I love your videos because I always end up learning something and/or walking away with a different perspective on a topic.
Keep it up!
Thank you so much!
I come here for the 5 course meal and Scanner Danner delivers each and every time. The details are delicious.
First time watching you. You won me over because in the beginning you didn't even want to do this video, but the further you got into it, the more you wanted to dig in. Like a bulldog with a bone! Great stuff.
Thanks for the comment! I do tend to operate this way. Glad you liked the video. It ended up being a really good case study for sure.
Love it! Bulldog with a bone syndrome is uncontrollable
Scannerdanner
THE GOD OF TROUBLESHOOTING
ALWAYS interesting and educational. Thank you for sharing, professor.
I have learned so much from you. I just wanted to say thanks.
Me too
The S&D show he definitely makes some of the best, informative, real world stuff vids. He's good.
he is owsum
thank you @The S&D show!
thank you @marcelo encarnacion!
Idk why but it was hilarious listening to you give the instant play by play on the misfire coming and going.
Paul, another great video. Always learn so much. I work on boats in Cali and apply so much of what i learn to my industry. Thanks man!
When I saw at 12:10 / 32:48 that Mr. Danner said he was done, I had my doubts. No way. He had 30 or so more minutes to enlighten us. Thanks to the crew for the production of this video from a retired mechanic in Los Angeles.
Thanks for going that extra mile to show us stuff we need to know.
Fantastic job. I always like your approach to a problem. Great video proving not to just use current ramping to diagnose an ignition problem. Some guys would have moved on after seeing a good ramp on that system.
Your making pros out of backyard mechanics Paul. Thanks for all the help.
Thanks to you Paul I will not ruin my led scope on a rope you're the best great instructor you make it look so easy
Another top notch vid from the master.Cheers Paul.
I really enjoy the mobile diagnostic videos.
As usual Paul, another great one to watch.
BTW...that cyl 3 misfire count could be from the #8 as in the fire order Cyl 3 is before the #8. so that coil may be fine after all on 3. BUT WAIT..THERE'S MORE. Lol Another suggestion for those wanting to make their own fuse buddy is to use the same kind of inline fuse holder to be able to use the fuse you remove to do the test.. just like how that other buddy you used did.
Thanks again Paul for your hard work and showing us all how it is done.
Cheers
great call! I didn't even look up the firing order. This would be exactly why that number 3 showed misfires. It was all from the #8. Thanks!
when we checking misfire data, i think we should just focus on the huge number, the reason why misfire is also occur on cylinder #3 because 3&8 are companion cylinders.
Your son does an excellent job filming. Good close up shots.
This guy knows his stuff at first I was like does this guy know what he's doing so I've been watching and after watching him on several videos I'm impressed, "very good and knowledgeable" a plus for any shop or dealership he is involved
Thanks Jeff!
Im always watch of video of sir danner i have also so much learned to him most fundamentals of components and i am so thankful.
got to say it. putting the scanner on the steering wheel like that is an awesome idea. I'm definitely going to start doing that with mine. thank you for all your information over the years. thank you
Another awesome video!!!!! My knowledge gets better and better thanks to your videos!!! Thank you!!!!
The video is very helpful, thank you. Another professional diagnosis that I learned new things through it.
Thank you and God bless you.
Hello Paul & Kaleb a great video and explanation of why you followed the path you did.
Keep them coming OK.
Very nice educational video. I have a friend with the same engine and same truck. He has had nothing but issues with it since he bought it. One of Fords mistakes. He broke 6 out of 10 plugs when trying to change them. Of course most in the back of the engine and very hard to fix. Thanks for the video's.
Exactly what my 03 is doing! It was the coil on cylinder #8 also! Awesome video!
Thank you Paul and Caleb. Bless you guys.
Thanks I’ve learned a lot ! I have a 2001 f150 with a rough idle misfiring I will be checking my fuel trims to determine the type issue I have. Then use some of your test procedures to hopefully find the problem.
Yep throw a coil if it fixes it forget to plugs but at the same time it all depends on the owner how far he wants to go.Another great video Paul and son so at that keep them coming.PEACE
Brilliant walk through, this is all making sense now.
Another great video Mr. Danner!
Nice! Great job scannerdanner!!!! 👍🏻
Hey! Just wanted to say thanks for the great diagnostic information.
I have a unique issue with my 1999 F350 4x4 with 6.8 V10.
I replaced all plugs and coil packs a year ago. Spent that year hauling cattle almost everyday with no issues from truck. One day while idling unnoticed the tell tale misfire of a bad coil pack. I used my scan tool and the number 8 cylinder code came up along with the Robson multiple misfire code. I bought a new coil pack installed and all was fine. I pulled out of my drive and about a mile up the road truck stares skipping and then just shut off. Diagnosed pcm fuse was blown, every time I would replace it it would blow immediately. I unplugged #8 coil pack and the pcm fuse did not blow. I got a new plug and installed and a new coil pack in #8 cylinder. Started up, no codes, all good, pulled on to road and bam skip starts and pcm fuse blew again. Checked coil pack and it was also blown out of the bottom. Unplugged and replaced pcm fuse and it runs again just skipping? Any ideas?
Change out the coil wire/ harness for#8
Caleb is getting really good at the videos
This was the first video I did not even check on his edits. This was all him. I think he only made one mistake. When I was showing the cylinder contribution test on the scan tool. He left the data up for only a very short period of time. He should have left it up longer while I was talking about it. But that was it! He is doing an awesome job and he is learning so much!!
You're not here to sell us tools?!?! Heck Paul, you are the reason I'm in debt LOL.
lol sorry jarin
Paul,
Great video - definitely learned a lot from it. Thank you!
God bless
Paul
you people talking crap about Paul need to stick it where the sun doesn't shine. he has advanced my skills on diagnostics to a higher level of understanding the world of automotive.s . he's a brother to me that is priceless that money can't buy. you bush on him you bush on me.
Paul is not a good mechanic at all. Read my way of doing this in 10 times less time. I can work circles around you Paul. With a mere 14 dollar scanner I would look at what codes were present. Then from there with engine running I would puty finger tip on each injector connector and feel for a pulse of it clicking, then from there used a 5 dollar test light to check for voltage at the connector at the coil and PRESTO I would know I need to replace those coils and if the miss persisted I would know the spark plug needed to be replaced. You lack mechanical inclination,butrather have memorized tech equipment knowledge
@@EarlGuyton425 you sound like a top notch mechanic. Maybe you should start a you tube channel? Share the wealth
@Earl Guyton He is trying to teach real diagnostic procedures for people who care about doing it right and to not be a parts changer like you. What do you do when you are out of guesses and it still isn't fixed?
What more can I say Paul except thank you I am learning something new every day your videos are wonderful and you sir an inspiration
I'm starting to get to know your name! It is you that's been sending me donations too right? For my SD grant at my school.
@@ScannerDanner yes Paul I think you are doing such a wonderful job for your community that I want to help you really are an inspiration with people like you and your family doing what you do America is already great thank you
@@nigelstringfellow5187 thank you my brother. I really appreciate this. More than I can say
@@ScannerDanner you are most welcome Paul by the way I'm going to buy one of your shirts as well it will probably take a little while to get here to Australia but it will be worth it
This was an exceptional video for a 72 year old female that use to work on my own trucks. I have a ford e350 rv and the check I
Engine came on after a their tried to steal my catalytic converter now showing lean codes in bank one and 2. I would imagine removal of spark plugs for this engine would be the same as mine. I do not want to strip my block only have 55,000 miles on engine 2002. Thanks for info.
Thanks for the video. You teach very well.
Excelente video Paul !
This gifted geezer just loves what he does ei!
Great diagnosis man!! 👍👍
thanks danner keep it up , great video perfect teacher
Anoter great job Paul and Caleb, thanks for share =) A hug from Spain.
Your'e the best! thanks for all the videos that you post.
Stellar job Paul!
This is so helpful ,i wish i have the luxury to work with you!
Good video Paul. FORD fixed or repaired daily. 👍
Always still learning Yoda is.Thumbs up.
I love this video. Learned a ton
Paul, great video!!!!!!!
Thank you for your great videos.
SD is the Guru of Diag. Hands down
NICE INSIGHT MAN! i change plenty of coils on these fords.. and triton v8 on the Econaline vans.. man some are sour to get to.. and sometimes the coil are so old its stuck on the plugs.. even a twist wont due.. or the coil bolts keep spinning on the plastic manifold.. i would of always suggest it being a coil and done the plugs...
Good review on the fuse buddy. I like the ones you built though. I think I will make some of those.
Gave you a thumbs up for showing cyl. 6 spark! Nice job. 30:05
Nice one! Dont know if it mutters on this engine, but i allways try to take out plugs, when they are super hot(Run the engine long just before) and that has done the job with those "hard on" Clow and Spark -plugs for me.
I had the same issues with my 99 ford f150. no scanner here :(. I used a timing light in older style coils and spark wires. When cold it fires find rpm fine. Coil when hot C7 misfires, rattles engine, timing light off in spark wire shown. I ohm visual both coils and spark plugs wires at cold and everything was fine. At hot my timing light found cylinder 7 intermittent/dead when hot was the issue. Did a cylinder compression test at 158psi. Visual inspection boots and spark plugs fine. Even clean the coil grounds some rust. still a week coil. I need a new coil. Yep is a ford alright. Took sometime conventionally. Great video here for diagnostic scan tool like that fuse testing :D.
Yep, definitely tritons have that spark plug issue. Especially the rear plugs.
Great video. Like you say, there are many variables. In believe the voltage waveform of the injector is a good indicator but I think the current indicator is the best. Modern diagnostics are mostly guided by resistance checks and voltage readings and sometimes that i just not enough or makes you waste a lot of time. It is too bad that your clamp on probe picks up so much noise. I would love to see a the injectors current waveform measured by connecting the instrument in series.
I've worked on alot of those mod motor 5.4s they are some tricky dudes sometimes. Especially the 10s with all the cylinders! Patience is a key when figuring those things out.
Slopoke Patience is a key especially if the V10 is in a van.
wysetech2000 haha....no doubt...I'm sorry 4 u sir!
Keep up the good work,
Great info. Thanks!
Great video! thanks for the help
Awesome video!
One of those rare occasions you will see a powerstroke and v10 emblems on the same vehicle
Haha right? Thanks for the comment! I'm making a short from this video on the spark test and how far it jumps and was recently thinking about this video to use. Thanks for the reminder
Dude if you’re ever in Leechburg area I got an Explorer you could make a million vids on man haha. Love your videos.
Great video I use the snapon flag pickups or the stick you just have to use a mv scale on your scope but they work good for doing comparison test on the secondary firing and they pick up good on ford coils
Take it your not a Ford guy Paul, it's alright bro no one is perfect..lol. Another good video with real education.. Learning A lot from ya.. Thanks..
Danner, the "Ford Misfire Guru" and not one bit of water was sprayed :(
lol nice
I was waiting for the classic water bottle too...but scope is also cool ;)
Hey screw you guys man 🤣
Oh no the door's not a door it's a jar.
What's this world coming to?
Next thing ya know we'll be driving on a parkway and parking in a driveway.
Great video Professor D and CD.
Yes excellent visual bad vs good.
good vid paul have uncle fred get the plug end extractor kit too! and a six pack to keep him calm
you are the best
1 inch spark test, when testing the coil or boot, thanks Paul......
Always great information, the boots can cause miss fires and there cheap
Adressing that high idle would be really great. If you just haven't mentioned that... Otherwise really perfect video.
From watching your other videos I could bet you were going to solve that high idle. I was watchig to the last second and thinking, he's gonna solve that too. The video is about misfireing and you haven't done anything wrong by not adressing high idle. It's just that your video are to perfect and you always give us more than you should. Like a child that gets everything and sudenlly you don't buy him something and he starts screaming.
Thank you.
Time for a wold tour
@12:39 definitely agree. You almost can’t go wrong with a shooting-from-the-hip recommendation of replacing ignition coils on a Ford.
great video
thanks u r the best
Good video!
Great encore
YOU ARE THE MAN
not all the time Chico :-)
Great video brother . Wanted to ask how you are after reading online about possible tornadoes touching down in Pennsylvania . Prayers for you and your families safety as well as all involved .
Thanks my brother. All good hear. Heavy rain and lightning was all we had. Just north and east of us it was different.
today i have the same feeling when u lost your car . my car was hit badly from the back i parked in the street like this car in the video i was charging the car a /c ( exactly as you taught us in your videos )after i fixed a leak in the hose by compressing the hose again someone was driving very fast while a child was crossing the road he pressed the brake suddenly the car turned hit my car from the back destroyed it in Egypt the insurance companies dont pay for accident like that i have to buy another car like you did i do respect love you i want you to say something to me to make me feel better
Romans 8:28 my friend
Finally found a very informative video 📷 great job
Loved it