Question about 1988 Chevrolet Silverado 2500

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My truck is running bad. it started when my truck was under pressure like going up a hill ther would be a noise like the timimg chain making a clinging noise then my check engine light would come on . iwould then lose power but i could put it in nutural while driving turn it off then back on and it would be fine. but it got worse over time . then it started cutting out like i turned the key off and then back on .this kept getting worse now it is real bad you cant even drive . i gave it a tune up caps wires button ,plugs that would not work then i put a new coil on it . and now it has a new brain .still nothing the timming is right .you can start it but after a few seconds the check engine light would come on and then it would run bad again .what could be the problem

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The possibilities are endless. do a compression check on the cylinders and see if your dropping a cylinder. If so this could be a valve sticking, bad head gasket, cracked cylinder wall (Where I would really start looking). Your symptom, by your description, starts after the vehicle has warmed up which tells me it is something that is small that gets bigger as it heats up.

Posted on Sep 14, 2010


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