Coolant sensor location

PADGETT51408

MEMBER
2009 PONTIAC G6
3.5L
V6
2WD
AUTOMATIC

I cant find the location of the coolant sensor to replace it.

Monday, October 26th, 2015 AT 12:46 PM

5 Replies

WRENCHTECH

MECHANIC
20,761 POSTS

It's in the end of the cylinder head at the transmission side.

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Monday, October 26th, 2015 AT 4:32 PM

2CP-ARCHIVES

MEMBER
4,540 POSTS
2007 PONTIAC G6

Can you tell me where the coolant temperature sensor unit located?

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Monday, February 11th, 2019 AT 6:50 PM (Merged)

JDL

MECHANIC
16,098 POSTS

Hello,

Here is a guide to help walk you through the steps for changing the coolant sensor.

With the 2.4L engine, the coolant temp sensor is located right rear of engine.

With the 3.5L engine, the coolant temp sensor is located, rear cylinder head, below coolant reservoir.

Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.

USER NOTES: I found on front head driver side on 2009 Pontiac g6 v6 3.5

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Monday, February 11th, 2019 AT 6:50 PM (Merged)

KINA24U

MEMBER
1 POST
2008 PONTIAC G6
118,000 MILES

My fan runs constantly and my temp gauge quit working. We changed the coolant temp sensor and didn't think that worked until I drove it to and from work and all seemed fixed. Then both quit working again. Then they worked and now they don't. I'm thinking there's a loose wire or bad connection?

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Monday, February 11th, 2019 AT 6:50 PM (Merged)