Wilsonfirecapt
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- Oct 21, 2013
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I am new to gmc and gm I bought my son a 1992 gmc sierra z71 he is turning 16 next month. The truck has 210,000 miles and about 6000 miles on a rebuilt motor. It has developed a rough idle, and when you stop and the truck returns to idle upon acceleration it will bog down for several seconds and then catch and take off, often barking the rear tires. I have already changed the iac, tps, and egr. Looking for any insight I am at a loss.