HELP rough idle
#1redneck
12-10-2007, 01:17 PM
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
kennydlate
12-10-2007, 01:19 PM
fuel filter???
#1redneck
12-10-2007, 01:28 PM
ok thanks i over looked that i will try that thanks
tbuckit1
12-10-2007, 01:36 PM
Filter is a good idea, after that check fuel pressure.
Could be fuel pressure regulator or the fuel pump itself. Try fuel pump LAST.
Could be fuel pressure regulator or the fuel pump itself. Try fuel pump LAST.
tbuckit1
12-10-2007, 01:38 PM
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.
Could be fuel pressure regulator or the fuel pump itself. Try fuel pump LAST.
A bottle of fuel injector cleaner wouldn't hurt either.
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