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1990 Pontiac Grand Prix 3.1 Turbo
Posted to Technical Discussion Forum on 5/28/2002 2 Replies

Ive owned this car about 7 years. It had around 47000 miles on it when i bought it. Around 50000 miles it developed a misfire. It was a shorted injector. Changed just the bad one. A few months later another one. Changed it. Another few months bad one again. Th... Login to read more.

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