Does anyone have the procedure for testing the Duraspark module that is used in the early Wranglers, I was running my Jeep tonight and it shut off again. I have tested everything else (see HOT resistance wire post) and now I am starting to thing the module is messed up. My FSM has a procedure for testing this but it is using connector on the MCU which I dont have anymore since the Team Rush Upgrade. Also, is there an application that I can get the module from that would be cheaper then getting it for a wrangler, the Pep Boys near here wants $70 for it. Thanks for your help.

Kris

I do the same thing every weekend, its just the location where I do it that changes!

$70???????!!!!!!!!!!!!! Those places sell them cheapie ones for $15 around here. Try advanced auto parts, auto zone or whatever to have it tested. Man............you can buy a new factory one for that price. As for the fit, go to the junkyard and look at any pre fuel injected ford car or truck with electronic ignition. They ALL have them. The only thing you have to look for is that is has to have a blue grommet where the wires run into it. It will be the right one. (4, 6, 8 can all use the blue ones) Also probally 70% of all those modules have the blue grommet. It was the most common one by FAR.

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I used to work at Advance Auto and I thought I had a bad ignition module (tach needle bouncing. Turned out to be a bad alternator, but that's another story.) Any way, They can test the Jeep/Dura spark module. If they don't have the test lead that plugs up to the jeep module, have them test it using one of the universal (with aligator clips) lead and hook it up like the blue grommet ford module. Also if it passes on the first test, have them retest until the module gets warm since they will often work fine until they get hot. If it turns out to be bad, you can use the cheaper (1/4 to 1/3 the price) blue grommet ford module, but you will either have to build an adaptor or cut and splice the wires since the jeep module has a different plug than the ford. Just remember if you cut the plug off the module you will void the warranty. I don't recall if they had a lifetime warrenty ignition module or not. The local jeep dealer has verified that you can use the ford module. They said they had done it on a couple jeeps.

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liberty to obtain a little temporary
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What year Ford can I get the Cheaper module off of? Thanks for the information on the test, I will see if I can get the guys at the local AA to test it for me. Thanks for your help.

Kris

I do the same thing every weekend, its just the location where I do it that changes!

I don't remember the year. Try late 70's or early 80's without the TFI ignition. The blue grommet is the most popular module.

They that can give up essential
liberty to obtain a little temporary
safety deserve neither liberty nor safety.