Questions & Answers for: check engine light 2004 gmc

...check engine light) the other day I washed the engine in my truck and drove it for apprrox 150 mile the next morning I drove for 32 miles and the check engine light came on. I had a friend of mine ...

...engine light is always on. I have taken it in to a few places and even had my brother check it out. I also have a code reader. I have never had a problem with it. When we hook up the code reader it ...

...this system started in 96, on old pre 96 system u could blink the check engine light and get the code. U CAN GO TO ANY KRAGEN OR AUTOZONE AND THEY WILL TEST THE SYSTEM FOR TROUBLE CODES FOR

...check engine light comes on if i go over 55 it starts to stall you need to have the computer scanned for codes .check the fuel pressure at 55 mph.check the exhaust for restiction,bent,clogged ...

...check engine light on, it onlt has 35000 kms and is one owner stock. 35000 kls?????? 2004!! one old lady driver as well??? been there and done that meself?? try looking at ignishion fults (coils / ...

...engine. Assuming you put on the proper gas cap and one of high quality, I would inspect the EVAP system for cuts/holes in tubes/hoses (you may hear a vacuum noise or smell fuel), repair if necessary. ...

...check engine is on, i had it checked at auto zone and they said it was the 02 sensor with low voltage. I have already replaced all the sensors and catylact converters. And still the light comes on. ...

check engine light on means there is a fault code and when it flashes it meand that it is a hard code or really important if you are in the us I beleve that auto zone will read the codes for you think

Why doesn't my check engine light work? The light should come on when you turn on the key. burnt bulb. Pain to change. Unless someone cut wire to turn it off.

2004 GMC Sierra 1 ton diesel check engine light won't come on at all why blown bulb or perhaps if you bought it used the bulb was taken out?