Thermostat replacement

2003 BUICK LESABRE
6 CYL
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FERTOR
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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.
Mar 25, 2011 at 4:28 PM
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FIXITMR
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who told you it had to be in a certain position?
Mar 25, 2011 at 5:12 PM
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FIXITMR
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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.
Mar 25, 2011 at 5:25 PM
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