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So, I recently did the LED flasher upgrade so had to put the rapid flash unit in that is just behind the lower dash.
When I removed the trim piece, the temperature sensor (the housing) disintegrated. So, I've ordered a replacement but it is used - is there any way I should "clean" it before installing? Obviously it is a fragile piece.
I wouldn’t bother myself. As you’ve found out, they can be fragile and since they are a simple device (thermistor), I don’t see how any surface contaminate would effect it.