ive dealt with this issue on nissans and toyotas and it usually involved replacing the heater motor assembly at the cost of about 100$ without the wheel. not sure on collys or canyons

 

Mine is starting to make a little ticking noise on 1 and 2. Nothing like what you are talking about. If I crank it up to 4 and back, the noise is gone. I got about 50,000 miles on it already. Someone here will probably have an answer for you. Good luck. Maybe replace the blower. That sucks.

 

Yeah, mine started as some noise on 1 and 2, but nothing on 3 and 4. There was only a little noise on 2, now its obnoxious. The sound insulator that GM put a TSB out for doesnt really block it out.

 

IF I remember correctly you gotta grease the bearings inside the motor.

 

shit, I have never heard that. I'll try that before I replace the thing. If I end up replacing it I'll tear this one apart to see whats making the noise.

 

More than likely bearings but I don't know about that greasing comment. Most bearings now-days are the sealed type that can't be externally lubed and don't require additional lube throughout their life. I spoke to an engineer from Timkin at a trade show who told me they don't even reccomend greasing sealed bearings on equipment that have zerk fittings for that purpose!

 

like I said I can't remember exactly :lmaop:

 

Are there any how-tos for this? The noise is annoying.

 

mine has been making a interment high pitched squeaking noise on 1 and 2 if I turn it to 4 then back it goes away, this happens only every couple of days, I don't have the TSB cover installed yet, but I figure that is only "masking" the problem, anybody tried squirting some Teflon grease on it? I am afraid the whole truck will smell like grease when I turn the fan on! My truck only has 25,000 miles and it is an 04, with no a/c

 

I didn't think they even made a truck without air conditioning anymore. I didn't try spraying it. If it works, let us know, thanks.

 

i had the same problem as you guys did, i just took the blower out last night and used di-electric grease on the bushings and on the main shaft that attaches to the fan itself. no more squeaking! it was really driving me nuts! but i took the whole thing apart down to the electro-magnetic fan motor, works great now! i dont know if there is a how-to but i could work on doing one if there isnt one already

 

Is it like a little flapping/ticking type sound on 1 and 2? Like some leaves are hitting the fan blade? Mine does this too, but i rarely use the hvac system anyway so only time i do is to defrost on high then back to off.

I was thinkin about taking the blower out and blowing compressed air through the ducts?

 

mine was loud after i let me truck sit for a while but after i drove it for like a week or two it went away

 

mine was a squeaking sound, took it all apart and the magnets werent hitting anything.

 

when i turn defrosters on, all i hear is shell casings jingling :lol:

 

I'd love a how to, glad to hear it worked taking it apart and greasing it!

 

ill work on getting on put up this weekend

 

My truck is doing this as well, little squeaking on 1 and 2...looking forward to the how-to

 

Common problem with our trucks. I posted up a TSB http://www.355nation.net/forum/serv...ulletins/16210-service-bulletin-c-blower-motor-chirping-clicking-low-speed.html

The only other thing to do is replace or remove the fan and clean out all the crap! Shell casing too. LOL

 

remove the fan and clean out all the crap! Shell casing too. LOL

How to???

 

ill take it back out this weekend and get one written up for you guys.

 

I probably have about a couple hours logged on my a/c since 05 lol. I hardly ever use it.

 

ok, just finished up the how-to on the fan squeak, pending review from the bosses.

 

Thanks firefightincolorado. I installed the cover per the TSB and it barely masked the sound. Since then my fan has gotten worse and is just as loud as before even with the cover now. My is horrible on 1... tick tick tick tick on and on. I'll try your write-up. The question is how long do you think that the dielectric grease will work for before it has to be dissassembled and done again?

 

good question, the di-electric grease does have a prolonged life span only because its a conductive grease. so, I dont really have a diffident answer for exactingly how long it will last, but my guess that it should last a long time.