Noisy Heater Blower Motor/Fan

[Chevrolet Customer Svc]

Originally Posted by CUPRA

I have a 2011 2SS/RS - had it from new. I've had the blower motor replaced twice now, and as of this morning, it has started chirping again.

The last two were under my factory warranty... I'll have to use my GM Extended warranty this time, which has a $100 deductible. Wonder if, with this being the third time for the same issue and part to be replaced, that it will be seen as a definite defect and they won't charge me.

Only one way to find out I guess...

CUPRA,

Sorry to hear about your noisy blower motor. You're welcome to send us a message for assistance with getting the diagnosis process started and I'll reach out to the necessary customer care specialist who will help oversee the process at the dealer level.

William R.
Chevrolet Customer Care

[Retro69]

Many moons ago I worked for Chevrolet and Oldsmobile dealerships as a driveability/light line tech. I can tell you this is not a new problem. For some reason GM must not seem to think there is anything wrong with their blower motors. Generally it's the commutator end bearing (actually I think its a bronze bushing) that always seems to get noisy after time. I had to take my 2011 SS to the dealer three times before they would confirm the blower motor needed to be replaced. Mine would only chirp when it was cold out and every time I took it in to have them look at it was not cold enough to make it chirp. So I live 30 miles from my dealer so that's 180 miles and time off from work three times to get this handled. Finally got it replace under warranty and the new one began to do the exact same thing this fall when it got cold again.

Since I'm out of warranty I decided to use the old-school fix. Take off the motor housing cover and put a drop of 3-in-1 oil on the bushing. Presto! Noise gone. YMMV but we fixed a lot of noisy blower motors this way years ago. Although the motor case did not come apart back then so we would drill a tiny hole in the back cover through which to oil the bushing. Just have to be very judicious with the oil so it doesn't get on the commutator/brushes.


Sent from my iPad using Tapatalk HD

[Rockhead]

Originally Posted by shankomatic

I have read through the TSB's, thre is one about a noisy belt problem, and one about a gurgleing noise and moisture discharge from the AC but nothing like this. It is one of those noises you don't always notice, but once you do it is stuck in your heads like a bad 70s disco song.

There was a good 70's disco song?