Question about 1984 Pontiac Grand Prix

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I just completed assembly of the motor in my car and started it for the first time in 8 months. After starting the engine, it idles very high continuously. Someone told me it couold be a vacuum leak, but, I am doubtful. What do you think could be causing this?

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  • McCoy Larry Nov 26, 2008

    idles 1500-2000 rpm have relpaced tp sensor and idle air controller no difference

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How old is the carb? Could be the choke is stuck on, try pulling the choke leaver on the side of the carb, if that dosnt work there is usally a screw on the throttle side that can be adjusted

Posted on Jan 01, 2009

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