2000 GMC Sierra Won't start in cold wx and runs rough in pa

2000 GMC SIERRA
85,000 MILES • 6 CYL • 2WD • AUTOMATIC
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BOBBYBONES
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Usually will not start if less than 50 deg F. When I punch it to passing gear it feels like its running on 2 cylinders.
Dealer had it for 1 1/2 weeks. He THINKS!! it's the fuel pump he said it has 50lbs of pressure but should have 60lbs. I didn't want to spend $800 to find out this wasn't the problem. It has been tuned up with new wires, acdelco plugs, distributor cap and fuel filter. Same problem. I guess I was kind of shocked to realize they didn't know what the problem was for certain.
Dec 1, 2008 at 6:10 PM
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DOCFIXIT
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service engine light on? Pressure O.K. check MAF and crankshaft and cam sensors first.
Dec 1, 2008 at 6:18 PM
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ROADSTER1929
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  • 16 POSTS
its your fuel pump 70 to 100 bucks
Dec 1, 2008 at 6:33 PM
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BOBBYBONES
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[quote:7fd0a11563="Docfixit"]service engine light on? Pressure O.K. check MAF and crankshaft and cam sensors first.[/quote:7fd0a11563]
Dec 1, 2008 at 6:45 PM