Question about 1998 Chevrolet Blazer

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1998 chev blazer 4.3

After approx 1/2 hr running, loss of power, hesitation, gauges and idiot lights are erratic, needles go up and down, all idiot lights come on. power loss continues until vehicle eventually dies. after a cool down period truck will start and run normal until it heats up. Tranny rebuilt 1 yr ago, all fluid levels and quality are good. Rad and belts good.
Initially suspected ground problem but am confussed about issue only happening after vehicle has been driven ofor minimum 1/2 hr.

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This sounds like a PCM overheating. I would have the truck looked at with a professional shop. I don't recommend a website diagnostic on this one or home repair either. This problem could become expensive proceed with caution if you choose to do this at home. Some part stores can program PCM's but please get a professional diagnois

Posted on Nov 04, 2008

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