Headlights Tail and Brake Lights
Jeep Cherokee Sport
Ford F-250

How do you find a short in the headlight wiring that would cause your engine to die when you turn on your headlights?


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Wiki User
2015-07-15 20:41:45
2015-07-15 20:41:45

I believe if you have a short you should blow a fuse. But if your engine is dying you probably have a bad alternator and/or battery.

make sure body ground to motor is still connected.

This happened to me in a 95 Toyota tercel and the cause was for the most part dirty battery connections, when the electrical load was raised the alternator could not immediately keep up and required a moment to adjust, but with a bad battery connection (probably the Positive in my case) it couldn't temporarily draw enough power from the battery to still fire the spark plugs hence the immediate stall.


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Run a ground wire to that headlight. If it gets brighter, there is a problem with the ground in the wiring harness.

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you need to check your wiring from the headlights bac to where it starts. it could just be a bad ground or you might have a break in the power wire to that light

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