Question about 1998 GMC Sierra

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1998 GMC SILVERADO FIXED AND REPLACED EVERYTHING ,HIGH IDLE

1998 GMC SILVERADO FIXED AND REPLACED EVERYTHING BUT TRUCK WILL STILL IDLE HIGH

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Have you replaced your intake gaskets? this is a problem on these trucks with high milage. to see if your intake is leaking spray it down with Brake cleaner and if it is leakin you will hear a drop in Rpm's
hope this helps
please rate me
Thank you
Aaron

Posted on May 08, 2009

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