rsavedin70
New member
- Jul 30, 2008
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i have a 1986 chevy silverado truck, 6 cylinder. when i start it, smoke comes out the tail pipe. but lately, some during driving also. is it nessarily the rings going bad or could there be other causes like dirty carburator or pcv valve? i just hope its nothing serious?? the motor dont knock, but is tending to smoke out the tail pipe. thanks for answering........