THERMOSTAT REPLACEMENT

2003 Buick Lesabre

Tiny

fertor

March, 25, 2011 AT 4:28 PM

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.

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2 Answers

Tiny

fixitmr

March, 25, 2011 AT 5:12 PM

Who told you it had to be in a certain position?

Tiny

fixitmr

March, 25, 2011 AT 5:25 PM

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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