Are you POSITIVE the DIS modules are going bad?
I did not have a good car to test my "Bad" modules on but by replacing them the car would start right up. My original DIS died under load, the second died in the driveway at ildle after about 15 min. The third, the one Pastera has, idled for about 20 min then died under load (not heavy load) about 1/2 throttle in third gear first trip down the street.
try a different heat sink compound....:-/
are you using heat sink compound? or are you using dielectric grease
Used Heatsink compound purchased from my PC parts outlet designed for Processor to Heat Sink. Also used Radio Shack Heat Sink Compound. Not Dielectric greese.
Also i think it's possible for a bad cam sensor to take out a DIS module
My Cam sensor was replaced after the first module went and before the last two went.
When the car did start, it ran fine. But putting it under a load may be more than the wires & plugs can handle. Plugs and wires are 3 years old.
My Plugs and Wires are new in July direct from the Stealership
Cam & crank sensor are new. (borg warner) I've talked with 3 Ford tech's & they all agree that the cam & crank sensors need to be replaced with original Ford parts.
My Crank Sensor has not yet been replaced car ran fine with it for 1 1/2 yrs before the DIS issue
I think this should catch me up with the rest of the posts here, Me and Casexxhemi have talked on the phone about this and the only truly common denominator in this is the bad DIS's,
1.) I have newer plugs and wires his are older.
2.) He has replaced the crank Sensor I have not.
3.) He has ohmed out his wiring, I have used two seperate DIS harnesse's.
4.) His car is a 92 mine is a 90.
the only things I think we have in common is that I think we both have replaced the coil and cam sensors.
I will be suprised if the factory ford crank and cam sensors fix this problem. But I hope I am wrong! I will buy mine next week if it does.
The one thing I am curious of is the EEC / IV Module which I believe feeds the DIS its power could they be bad and sending too much juice and frying the DIS's?? Maybe this could be the common problem in both cars?? Or maybe there will not be a common problem. All I know is it has taken alot of money to go nowhere for both of these cars!
Thanks for all of your help and support!
Scott