1995 Buick Park ave, 3.8L. I change head gaskets and now it doesn't have power when in gear. Checked for vacuum leaks but can't find ant. Please help
Double check plug wires are all on right plug, check fuel pressure on injector rail, (unless it has SPFI that I don't know for '95), timing, begin there
Is your service engine soon or check engine light on? - Jim
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