Bad Coil again / 85 Chevy 4.3L

[mechgo1977]

I replaced the coil about every 5 months, it just decides to not spark anymore. And I also replace the cap, rotor and plugs if they need it.
This one has no computer and the distributor has had the ignition modual changed out to a 4 pin.

Any ideas why the coil keeps going??

The local autoparts store said I had an electrical problem (no kidding).

[Sandho]

Check the engine to frame ground. A bad ground will cause that.

[Bob B]

Originally Posted by Sandho

Check the engine to frame ground. A bad ground will cause that.

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Hi,
There is a little jumper in the cap that is the ground for the coil. It is very easy to lose it while the coil is being replaced. It can run but sometimes poorly. Then fail.
Look at the plug in the cap for the wires and see that there is a jumper in the center slot.

Bob B