PO171 and P0174 Cold Engine
I would be suspecting the intake gaskets. They are prone to leaking especially when vehicle is cold. Having access to a scanner would be ideal so you can watch your fuel trims when this happens. what'* the mileage on this beast.
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chevyman828
GMC/Chevrolet Truck/SUV
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Aug 12, 2014 06:53 AM
marksssei
1992-1999
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Jul 19, 2004 05:38 PM





