Coolant temperature sensor?

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Apr 24, 2023 | 09:20 PM

velvetj1

Thread Starter

4th Gear

Joined: Mar 2023

Posts: 4

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From: Minnesota

Coolant temperature sensor? KNOCK SENSOR

1989 base
I found this above the oil pan on the passenger side, just in front of the starter, with the white part broken off and still connected to a single wire. It’s about 2” long. Google search on the number stamped on the side didn’t give any clear results.

When I took it off nothing came out at first. Until I scraped at the gunk inside and coolant started flowing.
Is this a coolant temperature sensor then?

Looking at new sensors online, they all seem to show a 2-wire connector instead of 1 wire. So that has me slightly confused. Does that matter?
What do I get to replace it?

Last edited by velvetj1; May 2, 2023 at 10:00 AM. Reason: Part correctly identified

Apr 24, 2023 | 09:38 PM

Whaleman

Safety Car

Joined: Mar 2017

Posts: 4,191

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From: LeClaire Iowa

Knock sensor. Dan

Apr 25, 2023 | 09:05 AM

djpink889

Instructor

Joined: Apr 2017

Posts: 156

Likes: 36

From: Cleveland Ohio

Those have a specific torque setting-when you reinstall make sure you get that right or the knock readings can be affected.

Apr 25, 2023 | 09:21 AM

velvetj1

Thread Starter

4th Gear

Joined: Mar 2023

Posts: 4

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From: Minnesota

Thank you!

May 1, 2023 | 06:13 PM

velvetj1

Thread Starter

4th Gear

Joined: Mar 2023

Posts: 4

Likes: 0

From: Minnesota

Shame on me for not confirming first, but is there only one sensor on a 1989? The passenger side?

All the info and videos I looked up refer to one on each side, but I don’t see one anywhere around the oil filter on the driver side.