Front blower does not work

Asked by Lorne Sep 10, 2015 at 04:19 PM about the 2007 Pontiac Montana SV6

Question type: Maintenance & Repair

In the winter months when temp is -20C or colder, the blower will not work
until the engine compartment gets warm...then the blower will work.

2 Answers

223,885

It is gummed up, not that it don't work, but the cold is making either old lubricant or any crap that my have collected making it stiff. Or bushings or bearings are dry. Never the less just replace the blower motor. One other thing is that there is a blower motor resistor that is going bad, and the cold is effecting it.

Best Answer Mark helpful

Easy inexpensive thing to do first, is replace the resister. When it gets frigid out, it causes the resistor to have much more resistance (the reason your battery is tested for "cold cranking amps". (Same thing applies with your battery). When your cabin starts to warm , and/or the resister itself starts to warm up (it does), that would allow it to pass current to the blower.

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