Melted Wire Loom On Coolant Sensor - : Jeep Wrangler JK Forum
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post #1 of 1 Old 04-08-2013, 05:20 PM Thread Starter
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Melted Wire Loom On Coolant Sensor

I'm not sure if anyone else has run into this or not, but I thought I'd put it out there.

While doing an oil change this afternoon I noticed the wire loom surrounding the wire to the crankshaft sensor(where it runs behind the water pump) was completely melted. It not only melted, but it had gotten hard and brittle, and had completely fallen off, leaving the wire unprotected. Had I not found it when I did, I'm sure the insulation on the wire would have melted shortly thereafter.

I think there were a couple contributing factors to the failure of the wire loom.
1) I live in a higher elevation. During my daily commute home I drive 10 minutes with the engine at 3K RPMs. When I get home the exhaust manifolds are glowing cherry red.

2) The factory fiberglass heat wrap doesn't go up far enough.

I would have taken pics of the failure but I had to get it fixed because I had somewhere I needed to be.

Anyway, something people want to check out.

Edit: Subject should state crankshaft sensor, not coolant sensor. If someone could change it that would be great. Thx.

'16 2dr Willys
'15 2dr Sport

Last edited by ShafferNY; 04-08-2013 at 05:51 PM.
ShafferNY is offline  
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