2001silverado fan motor?

[foulpole18]

I have a 01 2500hd silverado. My question is does this sound like a fan motor problem to you experts. I hear a click sound at idle and at acceleration from a stop from just behind the radio or just towards the passenger side. This stops happening when I shut the fan off. Also I have to turn the switch to 3 to get any real air moving threw the vents. If I have the ac on I also here a sssst sound periodically. This goes away when I shut off the ac or the fan.

I just want to know what you guys think before I start messing with it or get it fixed.

Thanks Brian

[Big Buck Buster]

I had a customer with a similar problem. It ended up being a whole bunch of seeds,leaves from trees getting into the HVAC unit. I had to pull the blower motor and resistor to clean it out. It was so bad that it had almost no air flow through the vents. Blew them out with an air gun, but had to use some foaming cleaner to get it clean enough, then had to spray it out with hot water(very carefully, and in small amounts), then blew it out with the air gun again. Good to go after that.

[Jeremy airjer W]

I think that one may have a cabin filter. Drop the lower cover on the passenger side. A 9/32 shallow socket and a short extension will work. With the cover out of the way you will see the blower, resistor, and just to the left of that, if it has a cabin filter, an access cover. I think the cover is held in place with a screw or two.

If it doesn't have a filter than I would have no problem dropping the blower to see what up either.

[foulpole18]

airjer

So do you think that the filter may be plugged? I know that it has a filter of the cab. Do you think that replacing the filter may fix the noise issue?

[Big Buck Buster]

The noise is more than likely something that got in the fan cage. You will have to pull the blower motor to get it out.

The truck I was talking about above did not have a cabin filter. The screw hole was there along with the hole that the cover tab would go into. I called our local GM dealer to see if I could add the cabin filter, and they said they did not have a listing for adding one. I don't think that it would be that hard to do using a dremel, and matching it to a year that had one.

[Jeremy airjer W]

I agree that there is something near the cage on the blower. The cabin filter was just a thought because you mentioned low air flow. If the blower is not turning on the speeds lower than 3 than you have a resistor issue. If the blower is turning at the speeds lower than three than there is an air flow issue.

[foulpole18]

Thanks for the help guys. I won't be able to get a look at it for a couple days. When I do I'll post what I found.