Thermostat location

Tiny
CATLADYKAREN
  • MEMBER
  • 1993 BUICK SKYLARK
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 180,000 MILES
I am unable to locate the thermostat.
None of the pictures are my motor.
Thursday, March 5th, 2020 AT 12:17 PM

3 Replies

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
Which engine do you have? I show two options. 2.3L or 3.3L. I attached the process for the 2.3L. Our manual didn't have the specific process for the 3.3L so I assume that will be the one you have.

However, the thermostat is normally allows just at the other end of the upper hose. One end is attached to the radiator and the other is connected to the thermostat housing. Then the thermostat is in the housing.

Let me know if you have another engine then listed and I will see what we can find. Thanks
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Thursday, March 5th, 2020 AT 3:43 PM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,700 POSTS
You have the 3.3L. If you follow the upper radiator hose, it will lead you to the thermostat housing. Behind it is the thermostat. I attached a pic of the engine / t-stat and circled it.

It's been awhile since I did one of these, but if I recall, they are tough to access because of the exhaust.

Regardless, let me know if this helps or if you have other questions. Additionally, here is a link that you may find helpful:

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

Take care,
Joe
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Thursday, March 5th, 2020 AT 3:49 PM
Tiny
STEVE W.
  • MECHANIC
  • 13,443 POSTS
That should be a 3.3 L V-6 in your car. The thermostat is under the throttle body location in the housing that bolts to the intake manifold between the exhaust crossover and the intake. Follow the radiator hose to the engine. The tube that it connects to has the thermostat at the other end.
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Thursday, March 5th, 2020 AT 3:55 PM

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