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Where is the coolant temperature sensor located?


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Posted

I just bought a 1989 Turbo Grand Prix, I was wondering where the coolant temperature sensor is located? thanks

Posted

Congrats on the TGP :smile:

 

Temp sensor for the gauge. Rear head just below the valve cover on drivers side one wire.

 

Temp sensor for ECM, under TB in V of LIM towards front. three wires.

 

Jud

Posted

 

Temp sensor for ECM, under TB in V of LIM towards front. three wires.

 

Jud

 

Hey Jud, thanks, it is the temp sensor for the ECM I am looking for (I should have been more specific), is TB the turbo? and sorry not sure what LIM is?

 

Thought I might change it, I have changed almost all of the other sensors..thanks

Posted

Ahh..

 

TB = Throttle Body

 

LIM = Lower Intake Manifold

Posted

I think I found it but is it possible it has 2 wires to it a green and a black with red stripe? Its actually quite accessable.

Posted

Yea could be two wires. It's only been a few year since I've seen mine.

 

Why are you going to change it? If the fans work properly it's ok.

 

Jud

Posted

I am trying to restore the vehicle as much as possible, I have changed most of the sensors (MAP, TPS, O2, EGR valve and the ECM which was bad, I havn't priced it yet but I will today.

Posted

I think I found it but is it possible it has 2 wires to it a green and a black with red stripe? Its actually quite accessable.

 

yup it has two wires, pretty easy to change

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