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Coolant temperature sensor location?

Tiny
PHORTMAN
  • MEMBER
  • 2018 GMC ACADIA
  • 3.6L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 55,000 MILES
It would appear that the coolant temperature sensor is in a different location for 2017 - 2020 GMC Acadia V6s than it was prior to 2017. Can you offer information as to its location?
Monday, December 14th, 2020 AT 1:28 PM

7 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,700 POSTS
Hi,

I have attached a pic below showing the location. I highlighted it for you. The directions require the removal of the coolant thermostat housing and inlet removal.

Pics 1 and 2 show location and directions.

Let me know if this helps or if you have other questions.

Take care,
Joe
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Monday, December 14th, 2020 AT 5:26 PM
Tiny
FERNMUNBAL
  • MEMBER
  • 2 POSTS
  • 2017 GMC ACADIA
  • 3.6L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 36,000 MILES
Hello, my vehicle is having an issue where the temperature gauge drops to zero even after driving highway speeds for a long time. It says the power steering is reduced and to drive with caution and will not let the A/C blow cold air. The fan works but will blow air at whatever temperature is outside. After searching forums for similar issues, it seems a faulty coolant temperature. Sensor may be the issue. I have purchased one but have not been able to find where the sensor is located. Is there a diagram or something that can help me pinpoint the location of the sensor? Thank you
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Thursday, February 4th, 2021 AT 9:46 AM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,700 POSTS
Hi,

It is partially under the intake manifold. See pic 1.

According to the manual, here is what needs to be done.

______________________________________

1) Drain the cooling system.

The drain is on the bottom of the radiator. See pic 2

2) Remove the thermostat housing inlet pipe

See pic 3

3) Remove the thermostat housing.

It is held on by two bolts. See pic 4

______________________________________

Reverse the procedure for installation.

Note: Make sure to replace gaskets and or o rings.

________________________________

Let me know if this helps or if you have other questions.

Take care,
Joe
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Thursday, February 4th, 2021 AT 9:46 AM (Merged)
Tiny
FERNMUNBAL
  • MEMBER
  • 2 POSTS
Thank you very much. I had a feeling that was the sensor but it is so reassuring to have verification from a professional. You have been very helpful.
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Thursday, February 4th, 2021 AT 9:46 AM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,700 POSTS
You are very welcome. If you run into any trouble, let me know. Also, if you can, let me know how things turn out for you.

Take care,
Joe
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Thursday, February 4th, 2021 AT 9:46 AM (Merged)
Tiny
JLOWILLIS
  • MEMBER
  • 1 POST
  • 2014 GMC ACADIA
  • 3.6L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 68,000 MILES
What is the location of the ECT sensor?
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Thursday, February 4th, 2021 AT 9:47 AM (Merged)
Tiny
PATENTED_REPAIR_PRO
  • MECHANIC
  • 1,853 POSTS
Ther engine coolant temperature sensor shown here at #9. Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.
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Thursday, February 4th, 2021 AT 9:47 AM (Merged)

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