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#1
08-31-2004, 07:17 AM
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96 jGC another odd problem....
96 JGC 4.0 ltr
Ok not sure exactly how to explain this... but here goes.. I recently replaced the batttery , tps and crank position sensor..(i think thats waht it was called -- rather exp.) but.. lately... On my way home from work..( i am in sfla so it has been very very hot in the afternoon -- not sure if temp has anything to do with it but) after @ 15-20min of stop n go driving the engine will start acting like its " gas starved " i can hit the gas and the truck just wont go...sometimes it will just not rev.. or start to rev then die down... I also think i may hear it misfiring in the engine..sometimes.. In the morning i usually take the freeway to work and i have no problems.. a little quiker drive, its cooler in the morning not sure if this matters or not though... The place that did the above work also did a "fuel injection cleaning and replaced the fuel filter" Truck was running great for about 3wks and now this... UGH ! any tips / suggestions/ ideas to try ? thanks Dave 
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#2
08-31-2004, 07:46 AM
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Re: 96 jGC another odd problem....
Throttle sensor or fuel pump
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#3
08-31-2004, 08:05 AM
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Re: 96 jGC another odd problem....
i changed the throttle sensor... if its a fuel pump why only when hot ?
I guess i am looking for everypossiblity to check befroe spending @ 500 buck on a fuel pump replacement
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#4
08-31-2004, 08:51 AM
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Fuel pumps are notorious for going out on the GC. But a shop should be able to check the fuel pressure before diagnosing the pump as the culprit. Since it seems to be heat related there is a sensor for intake air temp maybe it's acting up? But I'd have it checked before replacing anything. You hate to start throwing money at an unidentified problem.
ByronP
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