Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
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So am I to understand that you have a miss at lower rpms? Do you have any test equipment? Test Light, Scanner? Have you checked for codesr?
So do you have a fuel pressure gauge?
Do you have a vacuum gauge? Scanner? Any test equipment?
let me know and I can give you next steps
Ask them to check fuel pressure, and Vacuum. With the vacuum gauge you are looking for a nice steady needle. over 15inhg at idle and when they snap throttle a quick return to 15 or higher. any delay indicates a restriction in exhaust. Have them check for codes.