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1999 Oldsmobile Alero Location of the Thermostat

Tiny
HONORABLE
  • MEMBER
  • 1999 OLDSMOBILE ALERO
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 142,000 MILES
Hi. Where exactly is the location of the thermostat on a 1999 Alero Oldsmobile 6 cylinder? And is it possible for a defective thermostat to cause the heater to not get hot? The car only gets hot when driving at a high rate of speed. Thanks for all you do Chris
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Thursday, December 3rd, 2009 AT 11:39 AM

3 Replies

Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
Hi
Located on back top engine follow top radiator hose over to thermo housing will need to remove exhaust crossover pipe see diagram


https://www.2carpros.com/forum/automotive_pictures/198357_Graphic_257.jpg

Unbolt thermo is there. When refilling open the bleeder on neck of housing to expell air.
Hope this helps
Thanks for donate
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Monday, September 21st, 2020 AT 10:18 AM
Tiny
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Thanks for the reply. However, the diagram is somewhat hard to understand. Which is the back of the engine and still can't follow exactly where the thermostat is located. Could you be a little more specific. Thanks
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Monday, September 21st, 2020 AT 10:18 AM
Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
Diagram is back of engine follow top radiator hose over to engine it will be behind the exhaust pipe that needs to be removed.
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Monday, September 21st, 2020 AT 10:18 AM

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