GMC Repair: Intermittent service engine soon light, gm models, chevy tracker

Question
QUESTION: I have an intermittent service engine soon light that comes on stays on for a while and after period of time it will go back off to repeat again A mechanic read the code which said something about incomplete emissions?????? . I was told to replace the EGR valve unit, in Joliet the cheapest one new is $325. As soon as the new valve went on the light went out. Only to come back on a week later it comes and goes. what might be causing this?

ANSWER: you will need to have your emissions diagnosed. that could be only one of several problems. 325.00 is average price for an EGR. I paid that about seven years ago. I would look at your catalyst as well. O2 sensors, emission lines from the cold air.

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QUESTION: BTW where is the interior fuse panel located in my o2 Chevy Tracker I have yet to find it, several accessories has stopped working, like heat spare power plug etc...

Answer
there is a panel under the hood. open drivers door, look on the side of the dash. also look at the lower part of the dash, left side of steering column. I am unsure of the location, most GM models are located in these areas. look at the kick panels on both driver and passenger sides as well. If your search still continues, email me: marvin.saunders69@yahoo.com