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Sudden Loss of Power during a rainy day 200

Rob,

You might have a problem with your engine wiring harness. Several critical wires can behave strangely in wet weather. Your year suffers from the harness rot or biodegradable insulation problem, so unless you or a PO have replaced with a newer one, I would definitely look there.

My 1986 with 250K miles had a problem similar to yours, but I was not so lucky when I tried to restart. I had to have it towed and then started trying to fix it. With the great help of this board I was able to narrow it down to the AMM. I got a replacement AMM from a pick-n-pull for $25 and that fixed it. I had also replaced the fuel pump relay, and cleaned the fuses to see if that would fix it.

Also, I would clean the 25A fuse blades and holder, inside the driver side fender in the engine compartment. Whether this is superstition or actually has a benefit, I'm not sure. On my '86 it definitely had some oxide buildup which must have been reducing the current and voltage.

Good luck!

TomD






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