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I suppose this is a car component. The ignition coil could be burned due to high current flow through the primiry wiring for too long time (large dwell angle). If this is an old style mechnical point ignition system, check the point air gap for correct dwell angle. If this is a new distrubutor less system, the igniter should be checked.

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Why would the ignition coil module keep failing on a 1992 MAZDA 626?

I have had them fail due to heat. I used a certain dilectric grease on the underside to help dissipate the heat. If not heat, then possibly a poor ground.


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The 1991 Blazer has a current draw causing the wire to burn. You will need to trace the wiring out to find what is drawing too much current.


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You should check the pick-up coil, it can short out the modules. I have ran into this problem before and was a the end of my rope. I found a pamphlet at the auto parts store and read through it and came to the conclusion that the pick-up coil was shot, replaced it and never had to put another module in. Probably lack of die electric grease under the mounting surface of the module. This special grease keeps the module cool & lack of it could cause the module to overheat & burn out.


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If it blows when cranking the starter has failed.


Should you have voltage going to your coil when the ignition is in the on position. If you dont what is the probable cause.?

In my experience you must have voltage to the coil...it must be energized to sustain the engine current to work properly. this requires to have current from the ignition to the engine system. If there is no signs of current-voltage with the ignition ON - more likely it is interrupted at the switch. You may trace continuity on wires from the coil to the switch. check the fuse block to insure that no fuses are bad. You may fing a book on the used books store and locate the diagrams...you may search the net...they are there....keep an eye in the color code to ID the wires -they go from the engine compartment to the inside of the unit...I am assuming the that engine is not running. I am in Texas.

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