Thermostat replacement

Tiny
JEJETTOR
  • MEMBER
  • 2001 OLDSMOBILE SILHOUETTE
Six cylinder front wheel drive automatic 134,000 miles.

What is the easiest way to replace the thermostat?
Friday, October 22nd, 2010 AT 3:00 PM

1 Reply

Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
Remove the air cleaner and duct assembly.
Drain the coolant until the coolant level is below the thermostat.
Remove the crossover exhaust pipe.
Remove the radiator hose from the thermostat housing.
Remove the thermostat housing bolts and clean any sealer from the bolt threads.


https://www.2carpros.com/forum/automotive_pictures/261618_0996b43f802058d1_2.jpg



Remove the thermostat housing and gasket.
Remove the thermostat.
Clean the mating surfaces.

To install:

Install the thermostat.
Install the thermostat housing and gasket.
Install the thermostat housing bolts and tighten them to 18 ft. lbs. (25 Nm).
Install the radiator hose to the thermostat housing.
Install the crossover exhaust pipe.
Install the air cleaner and duct assembly.
Fill the cooling system.
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Friday, October 22nd, 2010 AT 8:09 PM

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