How to repair the coolant temperature harness that has been cut?

2011 HYUNDAI GENESIS
194,000 MILES • 4.6L • V8 • 2WD • AUTOMATIC
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TIMSTAN23
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  • 1 POST
My harness that connects my engine coolant temperature sensor is cut. How do a repair it and what is the cost of the part?
Dec 11, 2020 at 10:29 PM
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CARADIODOC
  • ASE Certified Mechanic
  • 34,321 POSTS
  • ASE Certified Mechanic
It depends on where the wire is cut and whether the connector is damaged. If there's enough of each end of the cut wire that you can strip the ends, check out this video on wiring repair:

https://youtu.be/4TjSYfLTHfg

The main thing is to seal the soldered splice with moisture-proof heat-shrink tubing. You can find it at any auto parts store and most hardware stores. Never use electrical tape as it will unravel into a gooey mess on a hot day.

If the connector is damaged, all auto parts stores have huge books showing just about every connector for any car model and engine size. I prefer to find the same engine in a salvage yard and snip the connector from it.
Dec 12, 2020 at 11:55 AM
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