I need step by step instructions on how to.

Tiny
SLIMROBINSON
  • MEMBER
  • 1999 OLDSMOBILE ALERO
  • 122,763 MILES
I need step by step instructions on how to replace a thermostat and if possible give me details on how to do it.
Thursday, January 17th, 2013 AT 5:51 PM

1 Reply

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Disconnect negative battery cable.
Drain and recover the coolant.
Remove the air cleaner assembly.
Remove the surge tank line from coolant outlet.
Remove the coolant outlet to the inlet manifold attaching bolts.
Remove ther coolant outlet.
Remove the thermostat.
Clean the inlet manifold mating surfaces.
Clean the coolant outlet mating surfaces.

This info is for v6 3.4L engine.
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Monday, September 21st, 2020 AT 10:18 AM

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