I have a 92 buick regal with the 3800 engine, the engine doesnt miss but its got a roughness/shake to it, it burning grayish out the exhaust *fuel* and smells extremely rich, while checking it over today we decided to unplug the vacuum line to the fuel pressure regulator. When we did there was no difference at all except for the engine revving up from the vac leak, when the vac leak was plugged with your finger the engine went back to running like it was with the regulator plugged in. I dont have a pressure tester nor do I have the extra $$$ to buy one unfortunetly and the car isnt road legal so it cant go to a garage to be tested. My question is.. with the fact there is no difference when the regulator is plugged or unplugged, does this sound like the regulator is bad?
Thanks for any advice
2007-09-22
13:10:44
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2 answers
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asked by
CitationOne
3
in
Maintenance & Repairs