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Thermostat replacement

Tiny
FERTOR
  • MEMBER
  • 2003 BUICK LESABRE
  • 6 CYL
What is the correct mounting position of the thermostat jiggle valve for a 2003 Buick Lesabre with a 3.8L engine. Is it 12, 3, 6 or 9 o'clock?
Thank you.
Friday, March 25th, 2011 AT 4:28 PM

2 Replies

Tiny
FIXITMR
  • MECHANIC
  • 9,990 POSTS
Who told you it had to be in a certain position?
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Friday, March 25th, 2011 AT 5:12 PM
Tiny
FIXITMR
  • MECHANIC
  • 9,990 POSTS
You could speculate that the plane of the thermostat will have a bearing on the valve position. A horizontal installation would benefit from a 12 position since air rises to top.
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Friday, March 25th, 2011 AT 5:25 PM

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