Coolant temp sensor help?

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May 20, 2015 | 05:29 PM

midlifetoy1

Thread Starter

Racer

Joined: Nov 2006

Posts: 491

Likes: 10

From: Atlanta Ga

Coolant temp sensor help?

Does anyone have a picture of the coolant temp sensor on an LS3? I removed the cover and did not readily see it.

May 20, 2015 | 11:11 PM

4SUMERZ

Race Director

Joined: Sep 2009

Posts: 11,351

Likes: 2,445

From: Eastern

The Coolant Temp Sensor is located right in front of #1 cylinder exhaust port, which is behind the alternator. Here is a pic of it.

Jul 5, 2021 | 12:07 AM

Dale002

Melting Slicks

Joined: Jul 2010

Posts: 3,479

Likes: 92

From: Between Tally and Gatorville ,Florida

I believe once it's unlocked, there is a small tab you push in

Jul 7, 2021 | 08:23 AM

08 ATOMIC-Z

Drifting

Joined: Aug 2006

Posts: 1,523

Likes: 34

From: King George Virginia

Its on the drivers side head. Just disconnect it. Use a deep socket to remove it put your finger in the hole to keep the coolant from running out and replace the sensor. 5 minute job at max and you might loose a 1/2 cup of coolant. The sensor is very cheep and they do go out. It will cause your fan to melt the connector. If you have had this issue you might want to check out the fan connection also. If its melted just cut it and hard wire it.

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