1998 Cheverlot Lumina 3100 engine all power. Problem comes and goes, no check engine light. After starting engine it idels smouth. When giving it gas, it starts missing and back firing only when engine is cold. After it warms up problem is gone. Yesterday it missed like it was running on 2 or 3 cylinders. Just before problem cleared it made loud knocking sound like a rod, clack clack clack about 15 times. It's full of oil. I have noticed the problem is worse when the humidity is very high or after a rain. The car is kept in a garage, so it doesn't get wet. Please if you don't know say so, I don't need wild hair brained guesses. And yes I have changed the fuel filter, oil, and air cleaner, plug wires and plugs. I would be gratefull for your help.
2007-10-18
04:44:45
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3 answers
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asked by
Anonymous
in
Maintenance & Repairs