Ignition cutting out

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Jul 25, 2010 | 08:49 AM

TopDawg_43

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From: God's Country NC

Ignition cutting out

I have an 87 22r PU. I did the GM module conversion. It ran fin for about 3 weeks. Then the ignition started cutting out after driving it for about 5 miles. If I cool down the module with ice, it will run just fine. When I did the conversion, I built a heatsink, using aluminum, to mount the module to. I changed the module thinking that would fix it, it didn't.

Any ideas to what went wrong?

Thanks in advance for the help.

Jul 25, 2010 | 09:41 AM

swampfox

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From: Nw Arkansas

did you apply the heat dissipation grease to the back of the module? it is very important to the life expectancy of the module.

Jul 25, 2010 | 10:11 AM

TopDawg_43

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Quote:

Originally Posted by swampfox

did you apply the heat dissipation grease to the back of the module? it is very important to the life expectancy of the module.

Yeah I did. I knew that I was sure to apply it.

Jul 25, 2010 | 10:13 AM

TopDawg_43

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From: God's Country NC

Quote:

Originally Posted by Gnarly4X

The GM Ignitor mod is very simple. Just make sure you isolated it from touching the ignitor case. Ignitors usually work or NOT.

Why did you use a heat sink??? Sounds like the GM ignitor may be bad???? Those GM Ignitors used to be fairly reasonable, but I guess they're up around $50.00 now.

I don't understand what you mean by make sure it's not touching the ignitor case. Please explain.

Jul 26, 2010 | 05:14 AM

TopDawg_43

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Quote:

Originally Posted by Gnarly4X

I cut the tabs back to make it fit and inserted into the old ignitor case.

I had it like that at first. Then it started acting up, so I moved it to. I used a piece of aluminum, and bolted the module to it. But the aluminum is bolted to the old casing, where the coil use to be. And the wires and tabs are not touching it at all.

Last edited by TopDawg_43; Jul 26, 2010 at 05:16 AM.