88 900s climate fan noisy when cold - Saab 900 Bulletin Board - Saabnet.com
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88 900s climate fan noisy when cold
Posted by grant mackay [Email] (more from grant mackay) on Thu, 14 Dec 2000 22:06:16
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Hi guys:
Mine is an 88 900S 130K
On especially cold New England mornings the climate control (heat & a/c) fan makes a low pitched, chafing hum/growl kind of noise at any fan speed. The sound doesn't change much as I cylce through fan speed switch.
It bad enough that I cycle the vent switch to off and wait for the coolant to come up to temp. Then once the heater plenum air is hot in about 2 minutes after I turn the fan back on the sound goes away. I can't tell if the air velocity out the vent increases at this time or no. It only does this when it's colder than 20F out.
I figure a bad fan bearing? Can his be fixed in place, or does the fan motor have to come out? Is it a bear, or easy/ Can motor be overhauled, or do I need new? thanks!
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