Question about GMC C2500

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Takes a long time to start wen it starts it blowes raw fule out the exhaust

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  • justE Jul 25, 2008

    1997 GMC SIERA

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First, is the engine in good condition? meaning compression ok, tuned properly, does it run smooth and not burn any more than 1 quart of oil every 1000 miles or better? If yes do the following tests:
Check the fuel pressure with a gauge before starting engine and look for
1. Correct regulated pressure
2. Tme to attain regulated presssure
3. How long it holds pressure when shut off, these specs vary from engine to engine, so consault the dealer or a repair manual for correct specs on fuel pressure test resaults

Posted on Jul 25, 2008

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