Question about 2007 GMC Sierra 1500
2004 GMC Sierra 1500 the engine light is always on, sometimes flashes abut never goes away. the problem started when the temperature reached -31. occsionally idles rough as well.
I have a 2004 gmc Sierra 1500 ext can long box and the 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 says gas cap so we fix that and the light turns off till the next time I drive it. Have it checked out but it's probably nothing as I have come to realize its probably a dirty sensor somewhere.
Posted on Mar 31, 2012
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Posted on Jan 02, 2017
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