Have a 2000 monte carlo 3.8l continues to have random multiple misfires and check engine light flashes when I get on the freeway. Has new plugs wires injectors fuel pressure regulator coils fuel pump fuel filter crankshaft sensor fuel pump relay catylic converter u name it? I'm stumped at this point please help...vacuum lines seem fine as well....
What makes this problem better or worse?
Both hot or cold
How long has your 2000 Chevrolet Monte Carlo had this problem?
RepairPal Certified shops can diagnose and repair your 2000 Chevrolet Monte Carlo. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
Hello, so many parts replaced, but has any testing been performed? Sometimes you can replace so many parts that even a new part can be installed improperly or be faulty and you'll never know.
All the variables make it difficult to perform necessary testing, as you have to pretty much start over.
Has a compression test been performed?
Were original equipment plugs and wires used?
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