Coil burning up

Asked by Apr 03, 2017 at 01:00 PM about the 1995 Chevrolet Blazer 4-Door 4WD

Question type: Maintenance & Repair

Coil burning up if ignition left on

2 Answers

13,110

If the engine's not running than the coil is seeing solid 12 volts instead of a "pulsing" 12 volts from the pickup unit ... normally the engine is running and the coil sees a brief negative signal that completes the 12 volt circuit Why would anyone leave the key on if the engines not running ? Why not the ACC?

1 people found this helpful.

In desperate need of help No acc. I was being towed so turned it to on position to put it in neutral within five minutes smoke rolled from the coil. It's the third coil

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