2000 dodge interpid

Reply

  #1  
Old 06-08-12, 09:37 AM
Member
Thread Starter
Join Date: Dec 2008
Location: wisconsin
Posts: 70
2000 dodge interpid

When you turn on the fan the motor makes a high pitch sound, not the fan motor, Is that the compresure? or what would make that sound. The air cond dosnt work, hasent in years to much dollars to fix . I didnt get a chance to look at it yet. Any help is great.
 
Sponsored Links
  #2  
Old 06-08-12, 03:59 PM
the_tow_guy's Avatar
Group Moderator
Join Date: Feb 2001
Location: SW Fla USA
Posts: 11,519
If the ac is already dead, then the compressor shouldn't be engaging to make noise or put a load on the engine.
 
  #3  
Old 06-09-12, 03:38 AM
Forum Topic Moderator
Join Date: Mar 2005
Location: USA
Posts: 43,045
Does the high pitch sound increase when you move the fan from low to high?
 
  #4  
Old 06-09-12, 05:29 AM
chandler's Avatar
Banned. Rule And/Or Policy Violation
Join Date: Dec 2005
Location: USA
Posts: 39,968
shouldn't be engaging
Unless the compressor is frozen up and actually does engage with the switch. The belt would squeal like a pig running over a pulley that is not turning. The pulley could free wheel without engagement. Removing the AC fuse may stop it from engaging.
 
  #5  
Old 06-10-12, 05:56 AM
Member
Thread Starter
Join Date: Dec 2008
Location: wisconsin
Posts: 70
The sound moves with the motor speed. Not the fan speed. The sound only comes when the defroster is used or the ac button is pressed. That was why I thought it was the compresor. Looking at it late last night the belt is not slipping at least what I could see. I'm going to try to remove the fuse to see if that helps. Woudln't the comp still engauge if the air didn't work when you turn on the defroster?
 
  #6  
Old 06-10-12, 06:10 AM
Forum Topic Moderator
Join Date: Mar 2005
Location: USA
Posts: 43,045
The defroster is separate from the ac. Did you check the tension on the belt?
 
  #7  
Old 06-10-12, 09:58 AM
the_tow_guy's Avatar
Group Moderator
Join Date: Feb 2001
Location: SW Fla USA
Posts: 11,519
Alternator? More juice being drawn when the high amp circuits are engaged?
 
  #8  
Old 06-10-12, 01:00 PM
ukrbyk's Avatar
Member
Join Date: Mar 2010
Location: USA/ Pacific NW
Posts: 3,192
on most modern cars defrost mode turns a/c on, telling you this or not.

hey, grab piece of tubing or garden hose, use it as stethoscope to pin point the noise origin. right now everyone is shooting wild guesses.

idler pulley may squeal like a pig also. water pump.. btw, first I hear cooling fans changing rpms... but what do I know..
 
  #9  
Old 06-10-12, 08:56 PM
Member
Join Date: Mar 2009
Location: Texas
Posts: 1,051
Since there are a lot of wild guesses, has a leaking vaccum line been eliminated especially if thte HVAC controls use vaccum for the accuators?
 
  #10  
Old 06-11-12, 05:39 AM
the_tow_guy's Avatar
Group Moderator
Join Date: Feb 2001
Location: SW Fla USA
Posts: 11,519
Ooooh; good thought, 'nox.
 
  #11  
Old 06-11-12, 06:14 AM
Member
Thread Starter
Join Date: Dec 2008
Location: wisconsin
Posts: 70
Thanks everybody for trying to help The problem was with the compressor , when under load the bearinges were heating up . Just so you know the defroster and the air are the same. THanks again
 
  #12  
Old 06-11-12, 06:59 PM
ukrbyk's Avatar
Member
Join Date: Mar 2010
Location: USA/ Pacific NW
Posts: 3,192
good to know. it's serviceable part and with some trickery and on some vehicles, you can replace clutch bearing without removing compressor. I have done it on some very tight vehicles, like 04 Mitsu Expo LRV.
They do not want to sell you bearing itself. Dealer will only sell you entire comp assy. I was blessed having CarQuest nutheads in Hermitage, TN, that matched bearing and entire cost was $6 plus tax and finger twisting prestidigitation to put it back onto comp.
 
Reply

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread
Display Modes
'