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Melted electrical connection...what to do?

Toonces

By Toonces
in The Off-Topic Bar

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Toonces Enthusiast

Toonces

Posted
Posted

So I put a headlight wiring kit from LMC Truck on my '96 Cherokee that circumvents the normal wiring and runs the headlights directly off the battery by way of a relay.  The kit runs the lights at 55/100 (low, hi) watts instead of the original 55/60.  One reason I did this was because the light output was terrible, and the other was because for some unknown reason the headlights would shut off after being on hi for a bit.  Never did this on low.  I've had the new wiring kit on for a few years now and it seems to have solved the issue.

 

The problem I'm having now though is that this new harness is melting at one of the connections.

 

You can see only one of the wires is overheating while the other seems to be ok.  I'm guessing the hot one is used by the high beams.

 

What could be causing this?  Could it be related to why the high beams used to shut off before I replaced the wiring harness?  A while back I asked about the shutting off issue on a number of Jeep boards but nobody had heard of this particular problem before.

batt wire.JPG

tbarn Senior Enthusiast

tbarn

Posted
Posted

Cut the input and output wires out of the connector and splice them together. Most of the problems like this are either an undersized terminal or loose ( defective ) terminal. Is the input wire a fusible link?

Paintor Enthusiast

Paintor

Posted
Posted

Neither of those hot wires in that kit are “ok”. Both are melted. 1 is now external of the kit plug and wrapped in 1/4” of tape.

 

Please disconnect. You sure the headlights are 12 volts?

diyer2 Senior Enthusiast

diyer2

Posted
Posted

Two things cause over heating of wires that will melt the insulation.

Poor connections or under sized wire.

If you want to keep this system and have it last I would rewire it with the next size bigger wire at least.

Remove all connectors and solder and shrink tube all connections that are necessary.

 

:)

 

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