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When the check engine light is on it simply means that the computer has detected a problem somewhere. You'll need to take the vehicle to someone who can read the computer fault code or take the vehicle to an automotive parts store that will allow you to borrow, rent or buy a code scanner.
Don't try to guess what's wrong, you'll just get frustrated and put a lot of unnecessary parts in your vehicle.
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∙ 13y ago
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Does anyone have a 2002 Chevy Malibu that engine light stays on car runs fine right now?
Check your pcv valve or your gas cap :P
Check Engine light stays on been that way for 6 months runs fine 1999 ford ranger xlt?
Go to Autozone and have them do a free check engine diagnostic. My 1999 had that problem. It is probably an EGR valve problem. Its a simple fix and helps with fuel efficency.
Fuel light flashes- check engine light stays on- runs great full tank- ML500 Benz 2002?
This is usually cause by a vacuum leak in the fuel tank evaporative system.
Your check engine light on your 1996 ford windstar stays on and there are no problems with your engine what would cause this?
The only way you will know what is wrong ( there could be problems that do not affect the way it runs right now ) is to have the computer codes read. If the light is on there "is" a problem.
If your Pontiac grand am ETS Light and Check Engine light are on but the car runs fine how can you fix?
You need to start by having it checked for codes. Then you will know what to diagnose/fix.
Service engine soon light reste on trailblazer?
fix the problem and the light goes off its sensors or cat converter but if it runs good don't worry drive it there is nothing really wrong with it light just stays on
1995 Contour V6 runs well at lower speed and then check engine light glows above 3500 rpm and engine misses then light go out and engine runs fine at lower speeds?
Sounds like either your fuel pressure regulator, fuel filter or throttle position sensor.
2001 jeep Cherokee engine light on truck runs fine Two oxygen sensor codes found one week later engine light disappears truck still runs fine without replacing either sensors Serious or non serious?
O2 sensor/s are probably failing. Not serious if you don't mind losing a few MPG.
Why is check engine light on but car runs fine?
The light is on because there is a problem with the emissions system. The engine may appear to be running fine but the emissions of the engine are out of spec. It may be as simple as a loose gas cap. Have the ECu scanned with a scan tool to retrieve the code that has been set by the ECU. This will help you find what part is being effected.
What do you do if check gages light stays on car runs but not sure if its ok to drive it with the light steady on And yes I do have half a tank of gas?
it doesnt necessarily mean its gas it can be your engine oil or some other type of oil. or tempt.
Problem with your rav4 in that the check engine light came on will a egr sensor replacement fix it the car runs fine?
If there aren't any problems with the operation of the vehicle replacing a censor isn't necessary . By disconnecting the battery terminals and reconnecting this will eliminate the engine light.
Why would the temp and fuel gauges tachometer and speedometer not be working on a 1996 Grand Am SE if other lights are on and the car runs fine and the check engine light is not on?
relay
