one for the gurus
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From: elizabeth,co
one for the gurus
help me please ive got a 95 it runs good then all of a sudden dies i have a superchips that i use for scanning i plug it in when this happens and nothing the code reader does not get a signal from the computer i shut the truck down for a bit wiggle some wires under the hood and she starts again and goes for however long she wants to what could this be? i still have tach when i turn the key on i get the cel and no wait to start light. i think thats all i got goin right now so what could this gremlin be? cps? uvc harness? idm? thanks everyone
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From: Silver Lake Dunes, MI
If the fuel heater shorted it would blow the fuse as well so just unplugging it wouldn't help unless you change the fuse as well. You need to check fuses as there is one that powers the cigar lighter and the diagnostic plug.
What wires did you wiggle?
What wires did you wiggle?
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From: elizabeth,co
i checked all the fuses they are good. at first i wiggled everything then the uvc it started quicker when i just messed with the uvc. the thing thats throwing me off is the inabillity of the scanner to read the comp when this happens
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From: elizabeth,co
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From: Belair md
check the main wire harness that runs across the left valve cover under the air intake tube near the front of the engine. it rubs through on the valve cover and bracket sometimes. if thats good then check the ipr harness in the valley of the motor, they will melt after years of use and oil being dripped on them
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From: Mountains of N. Montana
Coonhunterjoe is right on that one ! I've had that happen on one of our trucks... bracket that holds the intake pipe rubbed into the main harness..killed idm voltage to several cylinders making for a nasty miss. Actually, anywhere there is a bend in a harness is a potential place for wires to get the insulation rubbed off em and short em out. On the later model trucks with intercooler... the plastic wire looming that "protects" wiring, is notorious for rubbing holes in the aluminum cooler tubes where they touch... imagine what it can do for little wires inside with much vibration...
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From: elizabeth,co