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How to Fix Check Engine Light That's On in Your Car
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- čas přidán 11. 01. 2011
- Check engine light on. How to fix check engine light that's on in your car, DIY with Scotty Kilmer. What it means when your check engine light comes on and how to fix it. How to fix check engine light. DIY car repair with Scotty Kilmer, an auto mechanic for the last 50 years.
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⬇️Things used in this video:
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2. Common Sense
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5. Video editing software: amzn.to/2jv5Fhf
6. Thumbnail software: amzn.to/2k7tz6C
🛠Check out my Garage to see what I use every day and highly recommend:
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Hey Scotty, I’m a young guy with my first car. Don’t know too much about cars and I just wanted to say thank you for your help. I always come to your channel for my problems and a lot of the times it directs me in the right direction. I noticed this morning while driving to work, the check engine light came on but it wasn’t flashing. I now know I shouldn’t of freaked out entirely because like you said normally when it’s flashing it’s a serious problem. I’m gonna head over to autozone and have them scan it for me and see what my minor problem might be, thank you again Scotty !
This guy's the man!! He's helped me through A LOT!!!!!!! Thanks Scotty.
I agree
What would we do without great guy's like you. I know a bit about cars but with your extra professional advise you make easy for people like me to have a go. Thanks mate.
Can't get enough of Scotty's helpful videos and they are very entertaining, I learn a lot! I've also learned how many leaves almost all of the vehicles in his driveway seem to accumulate below the windshield.....you'll notice it in a lot of his videos haha. Its great!
9 yrs later thank you from Alaska. Nurse being called back into work and what lights up, not the Christmas star, the check engine light. Argh. And it's Sunday.
A code reader may be at the auto 'area' store.
Your enthusiasm is the ONLY welcome infectiousness I must say. Lol🤣
Ok this helped me out alot! I'm on my husband's page and my Check Engine light came on about 25 minutes ago. I was coming home from seeing him on his lunch break and it came on. It doesn't keep flashing it just stays on. I'm glad I can still drive it without having any serious damage. I have to drive a 2.5 hour drive to my parent's house and drive 2.5 hours back to our house. Thank you for your tips!
You are good about cars.thankyou for those videos
Best mechanic in the world.
love to see people like you on here keep up the good work
Your a legend Scotty! you have taught me so much! you have saved me thousands of dollars!
i was never interested in knowing squat about cars until i saw Scotty Kilmer!
I would replace the cooling fan relay and PRAY it's just that and not a computer circuit failure
Thanks for the valuable info, Scotty. It works.
@FrankaDith NO, I was just using the book as an illustration of how many codes there are. Scotty
@Niteguy705 The only thing gas level effects if the fuel pump which is inside the gas tank, so I would assume a problem inside there. Scotty
Thanks mate never thought it worked but it is ❤
this dude is cool, that said I'm trying to get check engine light off on my Nissan 2016 frontier it had bad gas and miss fired
@gmcarfreak that's the code for map sensor range problem. Either the sensor is bad, the wiring is bad, or you have a vacuum leak on the intake system causing that. Often vacuum leaks
hey Scotty can u force trans fluid to exit after the pan is dropped -----with air----- in the fill tube thanks -- oo and good job on the video
you can, but it could get messy that way
thanks Scotty, good to have an honest answer and not a trying to make money off of someone who just want to make a buck
your the man scotty
thanks for the info
You can get that $40 scan tool right now on sale at Amazon for $18.99. I goes up and down but usually it's about $22 on there and gets the basics done.
I was getting high NOx readings on my smog test so it was suggested I try to clean out my EGR and intake by running Deep Creep through a line I felt a vaccuum in and then it threw P0300-303 misfire codes that would not go away. It's a 96 Toyota Camry, so I was kind of forced to buy that. But it's a major timesaver.
@Orlando462 Yes, but they don't do much on such a basic system. Lots of places like auto zone sell cheap ones for them. Scotty
@steeloable The back spark plugs are hard to get to, but with wiggling and tools you can do it. As for pass key, that means your anti theft system is acting up. Try another good key if you can find one. Scotty
@printers On that old OBD I system, you would need an OBD I scanner to get the code WHEN the light is on. On the newer 96 and upwards car, the code would be stored, but not on that old thing. Scotty
@suddnstar only if it causes leakage in the system, often one bolt will hold em down fine.
@itscody317 they all work the same way on 1996 and newer, the more expensive ones do more stuff. If you just want codes, get a cheaper one. Scotty
U are awesome Scotty !
to keep the engine from pinging from pre detonation early of the gasoline inside the engine. it should actually be called an Anti Knock Sensor
@Niteguy705 realize that the computer software in most cars isn't that great, so if you have two misfiring computer codes, odds are they may all be misifiring and the computer just counted the ones that missed the most. Scotty
@kilagon10 they don't do much on those old things. You can get an old scan tool and check it, or just remove the bulb if it runs fine. Scotty
As usual, good vid, Scotty Keep 'em comin' !
My engine light comes on when I run low on gas or if it's muggy outside.
❤👍🙏 You saved us a bunch of money again!
Hi Scotty, love your suggestions and I always come to you first for car problems. Okay so I have a 2007 Chevy Impala with P0442, poor acceleration, and horrible gas mileage.....help. What can I fix before going to tech?
you havd a small evap leak, but that rarely causes horrid gas mileage. I would see a tech first just for an analysis cause it's probably something else making the gas mileage bad
what a cool guy
@hp11208 I don't understand your acronym KS. If you mean kill switch, they generally hide them under the dash as a little toggle switch. Scotty
Hello Scotty, how are you I am a big car enthusiasts and like to work on my car as well I recently changed the exhaust manifold on my car and put an exhaust header instead for some extra power, as I was removing the bolts I noticed on manifold stud had broken inside the cylinder head and with my luck it had to be one of the studs on the corner right, I got worried but proceeded to install it, and noticed the side with the broken stud was not nice and flush with the cylinder head , I tried to use the broken stud to tighten it,it screwed right in but did not tighten it, but all the other bolts where tight, so I got everything all buttoned up and started the car, and just what I expected the check engine light came on, could that be the problem? the car runs and drives fine, but I also noticed the idle would change from normal to a bit higher at times, I really hope it's just an exhaust leak and nothing serious, hope you can help me with this problem, thanks Scotty great channel.
@rbu2m it's hidden under the intake manifold, an absolute cow to change out, requiring removal of the intake manifold.
Thanks you were big help
Hey Scotty I just got a check engine and trac light on at the same time. It’s a 2011 Corolla. I also just installed a short ram intake. Any solutions? Plz get back at me.
Love ya Scotty
@batalatex The second choice should be fine, unless you want to work on the anti lock braking system, which the top one does but not the bottom one. Scotty
the torque converter solenoid system has a problem. Normally you have to take the transmission apart to replace the solenoid or fix the wiring.
@nwarpm Then get a cheap manual for your car, some have codes that can be read reading the flashes when you jump two wires, some require an OBD I scan tool. Scotty
@Ji99i3 it could also have blown the bulb. happened to me on my truck. Turn the key on but don't start the engine. the CEL should stay lit.
Haha just found your channel, your great dude! Subscribed
Scotty! I have a 2007 Tacoma RWD automatic. I have P2714 and P0776 codes on. I took it to a mechanic and he said he tested both solenoids individually and they’re working fine. I just changed my transmission fluid and it’s running a lot better but the codes are still there. Any ideas what it could be? Mechanic suggested a whole transmission rebuild but don’t wanna spend all that money if I don’t have to.
hey thanks a lot for this video help me a lot i need some help because my car is a toyota 1991 and i want to know where i go to put the scanner and which scanner i need to find what it cause the engine light turn on can you help me to know which is?? .... thanks a lot!!!
try my video "fixing bad catalytic converters" and try that cleaning process first, it often works.
Hi Scott. Hyundai ix35 yr 2013 has check ingine light illuminating. Solidly. Have any idea what could be the cause?thanks.
@Ji99i3 That means the computer found a problem, and now it has gone away, so don't worry about it. Scotty
Go somewhere else first, cause a check engine light should trip a code when scanned. But if not, then either your main computer is bad, or wiring going to it from sensors is shorted out somewhere. good Luck
Hey Scotty, once I replace the part and perform the repairs should I drive the vehicle and let it diagnose the that it was fixed and will the check engine light go off?
Scotty I have a question. My car had problems starting up today and I just kept pushing it and it came on and the traction, check engine, tire pressure and the wheel light come on (sorry I forgot what it’s called) but they all came on, I suspect something with my battery messed with the computer. Could that be?
get it scanned, e mail me the code or codes for analysis. auto zones scan em free. If you like my car help, be sure to watch my live car talk show every saturday morning at 10 AM CST on google events. I answer your car questions LIVE there. Just go to my scotty kilmer channel on youtube saturday morning at 10, and click on the google plus icon on the top right corner. That takes you to the event. You do have to be a member of google plus to ask questions, so join up, it’s all Free.
I have a 2011 jeep liberty. My check engine light came on a few months ago. I checked the code and it said I had a bad O2 sensor. I replaced that. A few days later it came on again. I bought it to a Jeep dealer to search further. They did a reprogram. The light went off but came back on two days later. I'm open to any suggestions you have as to what to try next.
Vinny in CT
@moofushu YOu can't, you'd need a gas cap pressure testing machine. BUT, they are supposed to do that test every time you get your car emissions inspected. Scotty
you can try, sometimes that does work. If not, replace the pump
You are the best my friend thanks for the explanation;)
that's crud in the fuel system. there are still things inside that can corrode (stainless steel is often cheaply made and will still rust) or things that can get into your gas tank from bad gas at a station. Rust will not be stopped by a fuel filter as it's too fine, and will clog injectors.
@arubin22 you've already figured out some of the possibilities, so start checking them. You do need a lot of tools and scan computers to analyze that stuff though. Scotty
What if the car doesn't have a obd2 scanner port because its to old
I would need the code number, and it would have to be in US obd II format, as that's all we use her e in texas
replace the oil pressure sending unit
Hi Scotty! Really intrigued by you video and I tried to replicate what you did on my 92 Nissan NX..
First I unplugged my Throttle Pos Sensor then I turned on the car.. No Check Engine Light!!
Secondly, I then short circuited the top right 2 pins on the data plug.. It gave me code 55 (no faults)!!
Do you reckon my ECU is corrupt?
Tom Pongrac it could be, but really, you have to drive it a few miles for codes to set often
system is too lean, many things can do that, start by checking for vacuum leaks and pressure test the fuel pump to see if it's weak.If you like my car help, be sure to watch my live car talk show every saturday morning at 10 AM CST on google events. Just go to my scotty kilmer channel on youtube saturday morning at 10, and click on the google plus icon on the top right corner. That takes you to the event where you can ask me questions Live. You do have to be a member of google plus
I have Chev suburban 2014 . I recent changed my car oil pressure sensor. Still i have check engine light ON. Do i need to do factory Reset. ?
Good to know
i purchased a nissan altima 2001 a few months ago. three days ago the check engine light turned on solid while i was driving. i borrow my friend's scanner and reseted the computer. how long should i drive it to know if the problem went away?
Your great Scotty
OBD II is for cars sold in the US after 1995. Previous to that, they are OBD I, and really old ones have no system in em at all. If a code is erased and not fixed, it would just come back. ONLY high level scan computers will read codes that have been erased and that haven't come back yet though.
Hey Scotty, do check engine light bulbs die? Mine doesn't come on just before start.
By unhooking the negative terminal on the battery will that get the check engine light off temporarily? Have inspection coming up and just wanted the light off
I took the positive off before my inspection to get it to go out… leave it sit for like 5 minutes, reconnect and go immediately to the inspection shop.
I dont watch your videos to fix my car I watch them for there entertainment value
@Orlando462 For OBD1 you can jumper 2 pins in the connector to make the Dash idiot light blink. It uses a sort of morse code to spell out the codes it's stored. Check the pin jumpering in your car's Haynes/Chilton book.
hey scotty i got gas about a day ago and im not sure if i left the cap a little lose when leaving. the check engine light turned on today and i went out and tightned the cap so i hear clicks. i just got the car back from my mechanic about 2 weeks ago.do you think its from the gas cap or something else and if it is gas cap is there anyway to test it beside reading the code or do you know how long it should stay on? Thanks scotty you are the man!
pray it's just a loose or bad gas cap. If so, replacing or tighening it will make the computer turn the code off after a few days of driving
@dwnrety1 Yes, but you'd need an OBD I scan tool or directions on how to make the light flash the codes out and a book to read those codes. Scotty
Hello scotty, i have a 2001 jeep grand cherokee laredo 4.0L..had code p0306 found out a injector clog with brown stuff like rust inside injector and flute,,,,where that brown stuff came from? it have a plastic fuel tank and stainless steal fuel lines.
ok scotty, can that P0740 code cause it to fail the state inspection an emission ? from what i hear the car shifts not good an slips
@Melvinsaniac as long as it doesn't come back on, yes. Scotty
hi scotty, i emailed you during the holidays but i knew you would be busy so i didnt expect an answer. basically my question was what happens if the check engine light goes away and doesnt come back. thanks and i hope your holidays went well
What an outro it looks like you got kidnapped and they recorded it
@Orlando462 My 91 Camaro has OBD 1 and I have a code reader for it. Codes do help on OBD1, not as much as on OBDII system but it still does help.
thank you so much i love your enthusiasm!
that's the code for ignition coil control circuit voltage high. Can be bad ignition coils, bad wiring, or a bad main computer.
What about a check engine light that only appears on start up and disappears a second later? Always wondered about that one.
today the garage guy put something in my tank and told me to put more gas in and drive an hour and see if all my not ready codes would go away since id had a check engine light on and the mechanic erased it after he put new gas cap on, anyways after I drove light was still off and guy drove me to emission place and I passed , this guy was great saved me alot of money went way beyond what he was supposed to do, id failed the day before because other mechanic erased the code, at least I got the sticker but light came back on loll, was a small leak, im not worried
Hey Scotty I have a 1991 Nissan stanza how do I diagnosis it to find out what’s wrong with it have a check engine light
I have a 96 Nissan Maxima and it will not go into reverse, should the filter be changed or what is your suggestion?
because I worry so much I might break something..thanks so much!
Hey Scott
I have a 99 Impreza, the CEL flashes at low RPM only when the tank is more than half full. Other times it just stays on. I pulled the codes and it says cyl. 2,3,4 misfire. I changed the plugs, plug wires, checked the coil which is good, and a new injector in cyl 2 but still the same problem. Note how it flashes ONLY at low rpm(idle usually) and ONLY when the gas tank is more than half full. Suggestions?? Please help!
you need a lot of experience for that testing lines and a wiring diagram to explain what goes where and what kind of voltage each wire should have. But, you can look as the pins and see if any are bent or broken
that's a specialty code, I would need to know make, model and year.
Scotty Kilmer hey boss i have a bmw x5 xdrive 35i the Engine light came on i reset it and it went away how long does it stay without appearing again if you can explain thank you 🙏
would the basic procedure be the same with an odb1 car?
I have a big question my mom has a 2017 Dodge Grand Caravan The battery has been dead for over a year now and my mother unfortunately lost her license due to an illness I cannot drive anymore I put a brand new battery in it because the vehicle ran fine until the battery died but I put the brand new battery in and it will not crank all the lights the dash and everything come on but nothing happens with the engine help please buyers for this van are coming tomorrow!
Hi Scotty .... Please let me know which one is better .... when I go to Amazon, it gives me 2 options ..... == 1 == Actron CP9580 Auto Scanner with CodeConnect Trilingual OBD II, CAN and ABS Scan Tool by Actron (Jun 25, 2010) Buy new: $152.96 ..... == 2 == Actron CP9180 AutoScanner Plus Diagnostic Code Scanner with Live, Record and Playback Data Capability and O2 Monitor Test for OBDII Vehicles by Actron (Jan 30, 2007) Buy new: $104.99 ..... which one should I buy ??
Thanks for your help !!
it will reset if the problem has been fixed. BUT evap leaks can be tons of places, requiring a dealer level scan computer AND a smoke machine to find and fix, they can be absolute cows.
small evap system leak, try a new gas cap and pray. finding other small leaks is a mother