Question about 2000 GMC Sierra

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My sercive engine lite started flashing and my engine runs rough

It seems to be ok at hiway speeds but at an idle it runs rough I have a 2000 gmc se 4x4 extended cab pickup about 140,000 miles

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Take the truck to an autoparts store and have them use a scan tool to retrieve the fault codes stored in the computer. Most stores offer this service at no charge. A faulty sensor is the likely culprit. Hope this helped.

Posted on Jul 19, 2009

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Posted on Jan 02, 2017

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