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Re: 2 ignition module failures - Coinicidence??
A little older of a vehicle but might be the same problem. Owned a 84 k5 blazer that did the same thing, would randomly blow modules out anywhere from 1-3 months so I kept a pile of them in the glove box.
Ended up being that one of the coil wires ( I think the red one) on top od the distributor was frayed and arcing over to the ground. Going on 6 years later and same motor in a different truck and works fine. Obviously these don't have HEI setups but might want to make sure none of the wires going to the coil or under the cap aren't frayed
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