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fabphrog3
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1985 silverado 5.7L exhaust sounds bad, possible donut, but dont know much about it.?
The exhaust sounds like it may be leaking under the cab somewhere when I accerate, but sounds good at idol. It sounds like an old truck, which it is. (sounds like the exhaust pressure is leaking in the same rythm as the piston strokes.) Also I am getting some power loss. Any help would be great, 200,000 miles on the truck, would love to get 200,000 more.
2 AnswersMaintenance & Repairs1 decade ago