ScoobyDoo82 Posted November 9, 2010 Report Posted November 9, 2010 Well I've had a hesitation with my 88 Grand Prix since I bought it. I just gave it a full tune up (plugs, wires, o2 sensor, air filter). TB is clean, and I took the smoke machine at school and couldnt find any vacuum leaks. I notice when it happens it seems like it starts missing really bad, then catches and accelerates just fine. It only happens when I accelerate from a stop, and doesnt happen EVERY time. Ive run out of things to check, can anybody else shed any light? Quote
Zoltan Posted November 10, 2010 Report Posted November 10, 2010 PCV valve? I had a simular problem a can of bg gas additive was a big help, much better than sea foam. Quote
ScoobyDoo82 Posted November 10, 2010 Author Report Posted November 10, 2010 I already seafoamed mine and put some STP fuel system cleaner through it. Quote
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