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#1
12-10-2007, 12:17 PM
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HELP rough idle
My 1992 GMC 1/2 ton has a rough idle. and will eventually die. but only when its worned up i replaced the spark plugs ,wires, distributor cap, igniton moduel, and the batery, i dont know what else to do. Any ideas
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#2
12-10-2007, 12:19 PM
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Re: HELP rough idle
fuel filter???
__________________
99 gmc sierra Z71 03 grand am 3.4L 89 daytona shelby
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#4
12-10-2007, 12:36 PM
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Re: HELP rough idle
Filter is a good idea, after that check fuel pressure.
Could be fuel pressure regulator or the fuel pump itself. Try fuel pump LAST.
__________________
"What in the wide, wide world of sports is a go'in on here?" - Taggert
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#5
12-10-2007, 12:38 PM
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Re: HELP rough idle
Filter is a good idea, after that check fuel pressure.
Could be fuel pressure regulator or the fuel pump itself. Try fuel pump LAST. A bottle of fuel injector cleaner wouldn't hurt either.
__________________
"What in the wide, wide world of sports is a go'in on here?" - Taggert
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