AC squeal

**DrMilhouse** · 04-28-2009, 03:30 PM

It's not a belt, but it does kind of sound like one.

It gets somewhat better with the AC off (or on, I don't remember, but it does change a very small amount). I've just removed the belt and called it good since it's been cold, but it'll be warm again soon.

What has been replaced in an attempt to make it go away:

The belt
The tensioner
The tensioner pulley
The idler pulley

The belt is plenty tight.

Belt dressing will change it for a short time, but not long.

I'm dreading replacing the compressor. I don't think that it would really need that, or would it? The compressor is the only thing left, but what I've found is that there is a replaceable bearing that is part of the AC Clutch.

There are 3 different bearings and it depends on the compressor that you have.

Anyone know of how I can find out which compressor it is and... is the bearing a solution?

**pajeff02** · 04-28-2009, 04:42 PM

If belt dressing makes the noise go away it is probably the belt or tensioner. The tensioner may not be putting enough pressure on the belt and it will slip and squeal. I have had belts that just squeal -- replaced them with a different brand and the noise was gone.

**JoshieDoom** · 04-29-2009, 02:06 AM

Im in the same boat as you except mine goes GR RG RG RGR GR GRGR GR GRG RGR GRGR.

**gbd99ws6** · 04-29-2009, 05:59 PM

Might want to try a different brand of belt. Had the same problem tried all the same things you did, ended up getting a different brand of belt and it shut up.

**lovedrvr** · 04-30-2009, 06:07 AM

had the same problem,then saw metal shavings on the belt
its the clutch,mine stopped and still works fine
but i have a whole new system waiting in the garage,paid $240 for new comp,filter,drier cans and oil,and o-ring kit

**JoshieDoom** · 04-30-2009, 06:10 AM

Originally Posted by lovedrvr

had the same problem,then saw metal shavings on the belt
its the clutch,mine stopped and still works fine
but i have a whole new system waiting in the garage,paid $240 for new comp,filter,drier cans and oil,and o-ring kit

Where did you get this deal at???

I just priced mine with my dads discounts at the stealership... 700 bucks for all of this...

**lovedrvr** · 04-30-2009, 06:18 AM

http://www.techchoiceparts.com/ListI...+and+Heating&&

i got the 10407n comp.

**JoshieDoom** · 04-30-2009, 06:21 AM

Originally Posted by lovedrvr

http://www.techchoiceparts.com/ListI...+and+Heating&&

i got the 10407n comp.

Holy shit! You are the man!

**Cutlass** · 04-30-2009, 04:43 PM

Gatorback belts are the best out there to stop belt noise. Give it a shot.

**DrMilhouse** · 05-29-2009, 06:34 PM

I put on a gator belt. It didn't squeal for a while, but it's been two weeks and now it's starting to squeal again.

I dunno what to think...

help?

**Cutlass** · 05-30-2009, 04:50 AM

did you try spinning the pulleys for the compressor, idler, and tensioner while you had it apart? How'd they feel?

***doberman 152*** · 05-30-2009, 04:58 AM

Originally Posted by lovedrvr

http://www.techchoiceparts.com/ListI...+and+Heating&&

i got the 10407n comp.

Nice find got to get me a new compressor soon.

**DrMilhouse** · 05-30-2009, 12:06 PM

Originally Posted by Cutlass

did you try spinning the pulleys for the compressor, idler, and tensioner while you had it apart? How'd they feel?

they all spun free handed. They felt like they were rotating smoothly (no catches when spinning around).

**Cutlass** · 05-30-2009, 12:58 PM

stock pulleys right? I'm thinking something must be misaligned, bent, or loose.

**david_viny** · 05-30-2009, 07:35 PM

Er mine did this too. On real cold days it would make a squeaking noise at every rpm and eventually go away. But on normal days it wouldn't start to make noise until like 4,000+ rpm, and it wasn't just a squeal at that rpm. It sounded like piston slap or something internally wrong with the engine, pretty disturbing. I questioned the AC pullys for the cold weather squeaking and took the belt off. Surprise, no weird sounds anymore, even the high rpm ones! I swear the engine is more responsive too but who knows.

So yea I'm no help here lol. But from the sound I heard at high rpm's, I'd have to think its from something relating to the compressor.