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Coolant Temperature Sensor Question

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Old Aug 9, 2011 | 08:52 PM
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Default Coolant Temperature Sensor Question

I snapped off the end of my coolant temperature sensor while doing some work on my 92. My question is when I install the new one should I put some thread sealer on it or just screw it in as is?

Thanks!
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Old Aug 9, 2011 | 09:11 PM
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New CTS I have bought have always had the sealer already on them and that is all I have used
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Old Aug 10, 2011 | 02:42 PM
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I'd use some teflon tape.
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Old Aug 10, 2011 | 02:53 PM
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If it is a single wire type it gets ground through the threads. Do not block all the threads with tape or sealer. Usually they come new with compound on already. If you have a leak problem it is okay to put something on the last part of the threads just not blocking them all.
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Old Aug 10, 2011 | 06:24 PM
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It's a two wire plug and didn't come with anything on the threads so I put a little thread sealing compound on it.

Thanks!
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Old Aug 11, 2011 | 04:31 PM
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I snapped mine off too doing a water pump replacement last week I just had the two metal spades sticking out with the female end of the weather pack connector gone into oblivion. I reused my sensor from the bad pump and put a little hi temp silicone half way up the threads just to make me feel better.

I would think the water itself makes a good ground in and of itself, never mind the threads. lol
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Old Aug 11, 2011 | 04:45 PM
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Originally Posted by Racer Z06
I snapped mine off too doing a water pump replacement last week I just had the two metal spades sticking out with the female end of the weather pack connector gone into oblivion. I reused my sensor from the bad pump and put a little hi temp silicone half way up the threads just to make me feel better.

I would think the water itself makes a good ground in and of itself, never mind the threads. lol
Coolant actually has a voltage. You can ohm it for testing. Not sure how that plays into it working as a ground.
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