Check Engine Light 2003 GMC Yukon

Question

Hey, my check engine light was on in my GMC yukon. Took it to the dealer, and they replaced the oxygen sensor, and some seals.

The light went off and I took it for inspection. They told me that some of the sensors on the check engine light hadn't run yet, and to let it run a few hundred miles and bring it back.

After running a few hundred miles, the light is back on.

Suggestions?

Answer 1

first  you say you when to a dealer for repairs that where many guys learn how to work on cars not really a good place to be taking a car with a problem... go to autzone and have it scan for free that would be smarter than a dealer

Answer 2

How thats wierd so there must be somthing else wrong to mow.