Thermostat location for replacement?

Tiny
64IMPALA
  • MEMBER
  • 2010 CHEVROLET IMPALA
  • 3.5L
  • V6
  • FWD
  • AUTOMATIC
  • 108,000 MILES
Where is thermostat located and how do I replace it?
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Monday, January 9th, 2017 AT 5:45 PM

33 Replies

Tiny
CARADIODOC
  • EXPERT
Here is a guide to help you step by step with instructions in the diagrams below to show you how on your car.

https://www.2carpros.com/articles/replace-thermostat

1. Drain the cooling system. Refer to Cooling System Draining and Filling (9C1, 9C3 Static Fill) or Cooling System Draining and Filling (LZE, LZ4, LGD, 9C1, 9C3, GE47716 Fill) or Cooling System Draining and Filling (LZE, LZ4, LGD Static Fill) .

2. Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement or Air Cleaner Outlet Duct Replacement .

3. Reposition the radiator outlet hose clamp at the thermostat housing.

4. Remove the radiator outlet hose from the thermostat housing (3.5L shown, 3.9L similar).

5. Remove the thermostat housing bolt/stud.

6. Remove the thermostat housing and gasket.

7. Remove the thermostat.

8. Clean the gasket surfaces.

Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.
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Saturday, March 2nd, 2019 AT 3:20 PM
Tiny
2CARPROS-ARCHIVES
  • MEMBER
  • 2010 CHEVROLET IMPALA
  • 60 MILES
Looking for location of thermostat and temperature sensor for this vehicle. Appreciate any info on this matter
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Tuesday, June 8th, 2021 AT 10:13 AM (Merged)
Tiny
WRENCHER1
  • MEMBER
Here are the instructions and location for the thermostat in the diagrams below.
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Tuesday, June 8th, 2021 AT 10:13 AM (Merged)
Tiny
2CARPROS-ARCHIVES
  • MEMBER
  • 2010 CHEVROLET IMPALA
  • 70,000 MILES
Where is thermostat located?
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Tuesday, June 8th, 2021 AT 10:13 AM (Merged)
Tiny
JDL
  • EXPERT
Hello,

The hose in the picture goes to thermostat housing here is a guide to walk you through the replacement steps with a diagram below to show you the location for your car.

https://www.2carpros.com/articles/replace-thermostat

Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.
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Tuesday, June 8th, 2021 AT 10:13 AM (Merged)
Tiny
DAMBRIAN
  • MEMBER
  • 2007 CHEVROLET IMPALA
  • 105,000 MILES
Need to change the thermostat. 5.3l v-8: where is the thermostat and any tips to changing?
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Tuesday, June 8th, 2021 AT 10:14 AM (Merged)
Tiny
DOCFIXIT
  • EXPERT
This job is not too bad here is a guide to help you see what you are in for when doing the job and diagrams BELOW to show you what it will be like on your car.

https://www.2carpros.com/articles/replace-thermostat

Install the thermostat (305).
Install the O-ring seal (304) and water outlet housing (303).
Notice: Refer to Fastener Notice.
Install the water outlet housing bolts (302).
Tighten the bolts to 15 N.m (11 lb ft)

The thermostat for your car is the water pump check out the diagrams BELOW to see what I am talking about.

Check out the diagrams (Below)

Please let us know if you need anything else to get the problem fixed.

Cheers
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Tuesday, June 8th, 2021 AT 10:14 AM (Merged)
Tiny
DAMBRIAN
  • MEMBER
That was not the easy answer that I was hoping for. Will get to work on it. Thanks you guys are great :)
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Tuesday, June 8th, 2021 AT 10:14 AM (Merged)
Tiny
DOCFIXIT
  • EXPERT
Take your time and take some pics before to help put it back together. Use 2CarPros anytime, we are here to help. Please tell a friend.
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Tuesday, June 8th, 2021 AT 10:14 AM (Merged)
Tiny
KWEST
  • MEMBER
  • 2007 CHEVROLET IMPALA
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 57,000 MILES
Thermostat on 2007 chev impala where its located
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Tuesday, June 8th, 2021 AT 10:14 AM (Merged)
Tiny
2CEXPT
  • MEMBER
Hello,

Here is a guide that will give you an idea of what you are in for when doing the job and the diagrams for your car are below.

https://www.2carpros.com/articles/replace-thermostat

Tighten the bolt/stud to 25 N.m (18 lb ft).

Check out the diagrams (Below)

Please let us know what you find.

Cheers
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Tuesday, June 8th, 2021 AT 10:14 AM (Merged)
Tiny
SMORROW
  • MEMBER
This diagram was very helpful. This site rocks!
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Tuesday, June 8th, 2021 AT 10:14 AM (Merged)
Tiny
GMILL21
  • MEMBER
  • 2006 CHEVROLET IMPALA
  • 108,000 MILES
How do you get to the bolts on the thermostat housing to remove thermostat? The problem I ran into was getting to them what do I need to remove and how.
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Tuesday, June 8th, 2021 AT 10:14 AM (Merged)
Tiny
HMAC300
  • EXPERT
Hey GMILL21.

You will need a universal 13mm socket to get to the bolts becasue it is in the lower radiator housing on the block.

Partially drain the cooling system.

Remove the water outlet housing bolts
Remove the water outlet housing and O-ring seal
Remove the thermostat
Clean and inspect the water outlet housing O-ring seal mating surfaces.

Here is a good guide on what you will be in for when replacing a thermostat.

https://www.2carpros.com/articles/replace-thermostat

Please let us know happens so it will help others.
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Tuesday, June 8th, 2021 AT 10:14 AM (Merged)
Tiny
MHTS1
  • MEMBER
  • 2006 CHEVROLET IMPALA
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 106,000 MILES
How do you change the thermostat?
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Tuesday, June 8th, 2021 AT 10:16 AM (Merged)
Tiny
MERLIN2021
  • EXPERT
THERMOSTAT REPLACEMENT (RPOS LZE/LZ4/LZ9) Removal Procedure Fig. 72: Identifying Radiator Outlet Hose Clamp & Thermostat Housing

1. Drain the cooling system. Refer to Draining and Filling Cooling System (LS4 Static Fill) or Draining and Filling Cooling System (LZE, LZ4, LZ9 Static Fill) or Draining and Filling Cooling System (9C1, 9C3 Static Fill) or Draining and Filling Cooling System (LS4 GE 47716 Fill) or Draining and Filling Cooling System (LZE, LZ4, LZ9, 9C1, 9C3 GE 4771 Fill) .

2. Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement or Air Cleaner Outlet Duct Replacement .

3. Reposition the radiator outlet hose clamp at the thermostat housing.

4. Remove the radiator outlet hose from the thermostat housing (3.5L shown, 3.9L similar). Fig. 73: Identifying Thermostat Housing Bolt/Stud

5. Remove the thermostat housing bolt/stud.

6. Remove the thermostat housing and gasket.

7. Remove the thermostat.

8. Clean the gasket surfaces. Installation Procedure Fig. 74: Identifying Thermostat Housing Bolt/Stud

1. Install a NEW thermostat.

2. Position a NEW gasket and the thermostat housing to the engine block.

3. Install the thermostat housing bolt/stud. Tighten: Tighten the bolt/stud to 25 N.m (18 lb ft). Fig. 75: Identifying Radiator Outlet Hose Clamp & Thermostat Housing

4. Install the radiator outlet hose to the thermostat housing (3.5L shown, 3.9L similar)

5. Position the radiator outlet hose clamp at the thermostat housing.

6. Install the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement or Air NOTE: Refer to FASTENER NOTICE .Cleaner Outlet Duct Replacement .

7. Fill the cooling system. Refer to Draining and Filling Cooling System (LS4 Static Fill) or Draining and Filling Cooling System (LZE, LZ4, LZ9 Static Fill) or Draining and Filling Cooling System (9C1, 9C3 Static Fill) or Draining and Filling Cooling System (LS4 GE 47716 Fill) or Draining and Filling Cooling System (LZE, LZ4, LZ9, 9C1, 9C3 GE 4771 Fill) .

8. Inspect the system for leaks.


https://www.2carpros.com/forum/automotive_pictures/62217_Tstat_2.jpg



https://www.2carpros.com/forum/automotive_pictures/62217_Tstat2_1.jpg


Shouldnt take much more than 1 hour.
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Tuesday, June 8th, 2021 AT 10:16 AM (Merged)
Tiny
KFREEMAN1047
  • MEMBER
  • 2006 CHEVROLET IMPALA
  • 3.5L
  • V6
  • 2WD
  • AUTOMATIC
  • 160,000 MILES
So my car blows cold air when it's in idle mode. But after maybe 5 minutes of driving the temperature goes up and heats like it's suppose to. Someone told me to change the thermostat so that's exactly what I need to do. Help please.
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Tuesday, June 8th, 2021 AT 10:16 AM (Merged)
Tiny
DL AUTOSHOP
  • MEMBER
Hello, I'm Danny.

Here is a tutorial for you to view first relating to thermostat replacement:

https://www.2carpros.com/articles/replace-thermostat

I've attached picture steps below on thermostat replacement for your car. Hope this helps and thanks for using 2CarPros.
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Tuesday, June 8th, 2021 AT 10:16 AM (Merged)
Tiny
SHACK1967
  • MEMBER
  • 2005 CHEVROLET IMPALA
Where is the thermostat located on my car? I cannot find it and I need to replace it
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Tuesday, June 8th, 2021 AT 10:17 AM (Merged)
Tiny
IMPALASS
  • EXPERT
Hello, there are three different V6 engines. 3.4L VIN E, 3.8L SC VIN 1, and 3.8L VIN K. It looks like the 3.8's are the same area. The first two pics are the 3.4 and the last two is the 3.8. Please ensure you provide all the engine information for the car to ensure you are provided the correct info. Thanks.....have a great day.


https://www.2carpros.com/forum/automotive_pictures/248015_2005_Impala_Thermostat_1_1.jpg



https://www.2carpros.com/forum/automotive_pictures/248015_2005_Impala_Thermostat_2_1.jpg



https://www.2carpros.com/forum/automotive_pictures/248015_2005_Impala_Thermostat_3_38_1.jpg



https://www.2carpros.com/forum/automotive_pictures/248015_2005_Impala_Thermostat_4_38_1.jpg

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Tuesday, June 8th, 2021 AT 10:17 AM (Merged)

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