Question about 1994 GMC Jimmy

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GMC 4.3 runs fine when cold, after 5 minutes, 150 degrees, parking brake light comes on? truck stalls, no sputtering just dies. Wont restart until cool again. Replaced the usual suspects, fuel pump, fuel filter, fuel pump relay, fuel pressure regulator, throttle positioning sensor, cleaned the throttle body, tested the ignition module (ok). just did notice the parking brake light thing.....any suggestions?

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  • Anonymous Mar 12, 2014

    My 05 GMC Envoy will just die and wont restart for up to 2 days when it does start it will only run for about 30 minutes and will die again, the ignition switch and fuel pump have been checked and are fine we have replaced the ecm andcrank position sensor have been replaced and it is still doing the same thing

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Car stalls, starts up then stalls again, starts up and stalls again


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1 Answer

Engine sputtering


The temperature gauge on ALL car should always start at the extreme cold end, because of the accuracy range of the sensing device.
Your sputtering and stalling might be a automatic choke problem.
Knowing this will happen you can brake with your left foot and press the accelerator just enough to prevent the stall, when you have to stop.
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If this does OR doesn't help find a NEW mechanic!

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2000 tundra v6 5-speed cold start truck runs great, park it for 20-30 min it will start fine but after going 1/4 mile it dies, looses power. pull over and it will backfire and sputter until it eventua


bad need of a tuneup? like new spark plugs, ?
172 , is 02 rich/ lean warning. this one is low oxy for rich.
this code can just be a victim. for sure , with misfire.
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what is water temp in engine coolant, at failure? less than 150F?
could be lots of things.
leaking injectors, bad fuel.
injector sticking> causing misfire.
id use a scan tool and watch all sensor when it fails.
too high fuel pressure.
misfires cold, but only luke warm cold starts not fully cold.

just one DTC, no P0300 or 30x misfire codes, not even P0300 pendings?

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1 Answer

Pickup runs fine when cold 5 minutes later spits and sputters and dies wait a minute starts up runs good for 30 seconds. then dies again


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You will need to figure out if it is a fuel problem or ignition problem to proceed.

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3 Answers

I have a 2001 GMC 2500HD. While driving down the


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From red light truck started sputtering and and stalled out


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1 Answer

2001 Ford F-150 Dyes in traffic id outside temp is above 70 F


heat build up causing spark system to break down

tell tale sign is highway drive is fine (plenty of cool air under hood)

you may have spark module prelim failure
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1 Answer

1996 Jeep Grand Cherokee stalls when brakes are applied


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1 Answer

Engine dies at 150 degrees.


sounds like its not accident related, more like a idle air control motor or something of that nature, ive also herd of this happening when the crank sensor is going bad, it warms up and starts missing the signal.

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2 Answers

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check your tail pipe for a "clog" engine not breathing correctly.

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