Question about 2005 Pontiac Grand Prix
HI.The blower fan or squirrel cage is rotated by the blower motor shaft, thus, forcing air through the heater core or A/C evaporator core and into the passenger compartment. it is housed in the blower compartment shroud. If the motor shaft becomes unstable, this will cause the cage, or blower wheel, to rub against the shroud, or housing. This will cause the noise you are hearing. The shaft screw may be loose, or the shaft, itself, may be faulty as well.
In most cases, replacing the blower wheel will correct this issue.It would be wise to inspect the blower housing for any loose mounting screws before replacing the wheel.
Posted on Nov 18, 2009
Testimonial: "Hi Thank you very much this makes alot of sense I just had the dealer replace a part to get it working last week - where is the blower located "
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Posted on Jan 02, 2017
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