Uplander 2005-2009
This sport-van offers a sporty feel and roomy interior, all in the body of a minivan.
Platform: U-Body

Technical fan temperature question

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Old December 1st, 2014, 2:13 PM
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Default Technical fan temperature question

Does anyone have the manual and can advise on what temperature the low speed fan is supposed to kick in and when the high speed fan kicks in on my '08 Uplander? TIA
Old December 1st, 2014, 4:21 PM
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Hi xboxxer,

You should be able to find a copy of the Owners Manual at my.chevrolet.com. If you want to provide the last 8 digits of your VIN we can look more into this for you.

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Old December 1st, 2014, 9:31 PM
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the ecm turns the low speed fan on at coolant temps of 103*C to 108*C. the high speed fan will turn on above 108*C.
the coolant warning indicator comes on at 128*C


the ecm will also turn the high speed fans on when the a/c is engaged.
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