Having problems with your 1996 GMC Jimmy ?
EMMISSION CODE P0404
\015 ITS REALLY FUNNY ,FIRST THE CODE IS ON THEN TWO DAYS LATER ITS OFF. LATELY MY JIMMY HAS BEEN RUNNING POORLY,AND I NEED TO KNOW WHAT TO DO?\015
Check your egr valve if its full of carbon or defective
Repair Help & Product Troubleshooting for 1996 GMC Jimmy
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