1st Gen. Ram - All Topics Discussion for all Dodge Rams prior to 1994. This includes engine, drivetrain and non-drivetrain discussions. Anything prior to 1994 should go in here.

Noise in the front -- can a failing fan clutch squeak?

Thread Tools
 
Search this Thread
 
Old 04-16-2014, 08:34 PM
  #16  
Registered User
Thread Starter
 
james1's Avatar
 
Join Date: Nov 2006
Location: Englewood, TN
Posts: 807
Received 41 Likes on 27 Posts
Originally Posted by j_martin
Compressor squeeks usually occur when not turning, and are in the idling bearing in the pulley assembly. When the clutch is engaged, that bearing is bypassed (locked up so to speak) and the only noise would be from the compressor itself. It would be unusual for it to do that very long without total failure.
I had a sense this was the case -- the first time I heard the squeak I switched on the A/C and expected the squeak to stop.

Originally Posted by j_martin
Before you get all carried away, the AC compressor puts a big load on the belt, and if it's prone to, that's when it'll squeak. Try a new belt before you spend a lot of time and money on it. Also look at both the crankshaft pulley and the AC pulley for signs of wear as I stated previously.
Thanks; that's a great suggestion. As fate would have it, when I purchased the non-A/C belt, the parts store also had one of those fancy green Gates belts to fit a truck with A/C so I went ahead and bought it. As I've now discovered how incredibly easy it is to change the belt on my truck, I'll install the new belt to see what happens .
Old 04-23-2014, 08:49 AM
  #17  
Registered User
Thread Starter
 
james1's Avatar
 
Join Date: Nov 2006
Location: Englewood, TN
Posts: 807
Received 41 Likes on 27 Posts
Originally Posted by j_martin
Before you get all carried away, the AC compressor puts a big load on the belt, and if it's prone to, that's when it'll squeak. Try a new belt before you spend a lot of time and money on it. Also look at both the crankshaft pulley and the AC pulley for signs of wear as I stated previously.

Compressor squeeks usually occur when not turning, and are in the idling bearing in the pulley assembly. When the clutch is engaged, that bearing is bypassed (locked up so to speak) and the only noise would be from the compressor itself. It would be unusual for it to do that very long without total failure.
A new belt seems to have done the trick! you were 100% correct. Thanks so much; I owe you a pint of Guinness.

The pulleys appear to be in good shape. My previous belt had no markings or label on it whatsoever, and I'm guessing it was very cheap quality-wise. It wasn't terribly old and was installed by Cummins Power South , so I never suspected it as the culprit.

My new belt is one of the solid green ("premium") Gates belts that ran me about $50, which is still a whole lot less than a new A/C compressor.

Thanks again.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
shep1
3rd Gen Engine and Drivetrain -> 2003-2007
12
08-29-2010 10:19 PM
CTD2001
24 Valve Engine and Drivetrain
15
11-28-2009 07:54 PM
ytodd
24 Valve Engine and Drivetrain
7
11-02-2007 09:57 AM
gman07
1st Gen. Ram - All Topics
1
05-09-2007 06:03 AM
hotdram
2nd Gen. Dodge Ram - No Drivetrain
31
09-17-2005 08:00 AM



Quick Reply: Noise in the front -- can a failing fan clutch squeak?



All times are GMT -5. The time now is 01:20 AM.