95 TBI engine shuts off - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Zeke · 10-24-2011, 06:35 PM

95 GMC C3500 5.7 TBI

Drove my truck to work and when I stopped to show my ID at the gate the engine quit and would not start. Pushed it to a parking spot, went back 2 hours later and it started right up. Left work and half way home it just quit, would crank but not start, waited 30 minutes and it fired right up. Didn't want to take a chance as I was in a good spot to leave my truck.

It runs good, no miss or anything, I was thinking it might be the ingnition module or coil cutting out when hot?

Has anyone had this problem? Any thoughts?

Thanks

ChevyTech · 10-24-2011, 08:03 PM

It sounds like heat could be causing the ignition module in the distributor to break down. Many stores like NAPA in my area will test the distributor module for free if you bring it in.

The test results from these store are not always accurate, and some times the will say the module is good when it is not, but for a free test that may find the problem it is worth a try.

Make sure when you install or reinstall the distributor module that you use heat sink compound/grease under it. The compound helps dissipate heat from the module. Without it, the module will fail.

Zeke · 10-26-2011, 02:11 PM

Thanks for the help.

Ignition module tested bad, replaced it and haven't had a problem

ChevyTech · 10-26-2011, 08:42 PM

You’re welcome, and thank you for the feedback.

10-24-2011, 06:35 PM	#1
Zeke Active Member Join Date: Jun 2002 Location: L.A. Lower Alabama Posts: 453	95 TBI engine shuts off 95 GMC C3500 5.7 TBI Drove my truck to work and when I stopped to show my ID at the gate the engine quit and would not start. Pushed it to a parking spot, went back 2 hours later and it started right up. Left work and half way home it just quit, would crank but not start, waited 30 minutes and it fired right up. Didn't want to take a chance as I was in a good spot to leave my truck. It runs good, no miss or anything, I was thinking it might be the ingnition module or coil cutting out when hot? Has anyone had this problem? Any thoughts? Thanks __________________ 1969 C10 350 3spd 1995 GMC 3500 XC 350 dually When Thomas Edison worked late into the night on the electric light, he had to do it by gas lamp or candle. I'm sure it made the work seem that much more urgent. George Carlin

10-24-2011, 08:03 PM	#2
ChevyTech Registered User Join Date: May 2004 Location: Minnesota Posts: 4,621	Re: 95 TBI engine shuts off It sounds like heat could be causing the ignition module in the distributor to break down. Many stores like NAPA in my area will test the distributor module for free if you bring it in. The test results from these store are not always accurate, and some times the will say the module is good when it is not, but for a free test that may find the problem it is worth a try. Make sure when you install or reinstall the distributor module that you use heat sink compound/grease under it. The compound helps dissipate heat from the module. Without it, the module will fail. __________________ For those of you that are wondering why you are not getting replies to your thread: Did you give the model, year, engine, fuel system type, and transmission information? If it is modified from what came stock from the factory, let us know that too.

10-26-2011, 02:11 PM	#3
Zeke Active Member Join Date: Jun 2002 Location: L.A. Lower Alabama Posts: 453	Re: 95 TBI engine shuts off Thanks for the help. Ignition module tested bad, replaced it and haven't had a problem __________________ 1969 C10 350 3spd 1995 GMC 3500 XC 350 dually When Thomas Edison worked late into the night on the electric light, he had to do it by gas lamp or candle. I'm sure it made the work seem that much more urgent. George Carlin

10-26-2011, 08:42 PM	#4
ChevyTech Registered User Join Date: May 2004 Location: Minnesota Posts: 4,621	Re: 95 TBI engine shuts off You’re welcome, and thank you for the feedback. __________________ For those of you that are wondering why you are not getting replies to your thread: Did you give the model, year, engine, fuel system type, and transmission information? If it is modified from what came stock from the factory, let us know that too.



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