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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
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Weird sound

  • Thread starter Thread starter 95mustang_gt
  • Start date Start date Dec 14, 2005
9

95mustang_gt

New Member
Mar 30, 2005
364
1
0
Wisconsin
Dec 14, 2005
#1
  • Dec 14, 2005
  • #1
Well i notice that everytime i start my car in the morning i get this weird high pitch sound coming from the engine bay.Its only when its cold,but when it warms up the sound goes away.It sound like its coming somewhere around the pulleys.I have a video but i dont know how to post it,if some knows how to put it on here i can send it to them.


thanks
Jesse
 

Stanger007

Founding Member
Sep 26, 2001
2,015
2
46
Baton Rouge, LA
Dec 14, 2005
#2
  • Dec 14, 2005
  • #2
Get or borrow an automotive stethescope (parts store has 'em for cheap) and nose around. My waterpump was making a god awful noise until I replaced it.
 

18mustangs

New Member
Jun 8, 2005
533
1
0
Virginia Beach, VA
Dec 15, 2005
#3
  • Dec 15, 2005
  • #3
95mustang_gt said:
Well i notice that everytime i start my car in the morning i get this weird high pitch sound coming from the engine bay.Its only when its cold,but when it warms up the sound goes away.It sound like its coming somewhere around the pulleys.I have a video but i dont know how to post it,if some knows how to put it on here i can send it to them.


thanks
Jesse
Click to expand...

Jesse, sounds like you need a new belt or idler pulley to me.
Tim
 
9

95mustang_gt

New Member
Mar 30, 2005
364
1
0
Wisconsin
Jan 10, 2006
#4
  • Jan 10, 2006
  • #4
Now I can hear all the time. It sounds like it is coming from the idler pulley or water pump. Its sound like a whistle/squeak sound almost like a supercharger. This might be a stupid question but does the middle bolt on the idler pulley suppose to spin with the idler pulley? What should I look for when I check the belt for wear and the idler pulley?
 

95CobraMike

Active Member
Apr 12, 2004
1,046
0
36
Lima OH
Jan 10, 2006
#5
  • Jan 10, 2006
  • #5
sounds like a water pump to me....

No i dont think the idler pulley bolt is suppose to spin with the pulley
 
H

hrspwrjunkie

Member
Dec 15, 2004
165
0
18
Jan 10, 2006
#6
  • Jan 10, 2006
  • #6
No, the idler pulley bolt isn't supposed to spin with the idler pulley. Fix that, see if the sound goes away. If not start poking around with a stethescope or a wood dowel. Start at the idler pulley (most obvious source of unusual behavior), then check all pullied accessories.

I just replaced the idler pulley in my '95, here's a link. There are pictures in the side bar link gallery. Click on the pictures to expand them. www.classicsandperformance.com/projectgtch3.html

Ryan

95mustang_gt said:
Now I can hear all the time. It sounds like it is coming from the idler pulley or water pump. Its sound like a whistle/squeak sound almost like a supercharger. This might be a stupid question but does the middle bolt on the idler pulley suppose to spin with the idler pulley? What should I look for when I check the belt for wear and the idler pulley?
Click to expand...
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
31,179
34
129
Jan 10, 2006
#7
  • Jan 10, 2006
  • #7
Dont forget the smog pump, if you have one. The vanes are on an eccentric plane and can bind and scrape the walls when it is cold out. once warm, they unbind and the noise goes away or diminishes a good bit. Dont ask how I know.

As mentioned, a mech's stethoscope should make quick work of it.

Both the stationary idler (with the torx bit fastener) and the tensioner's idler should be tight. Those pulleys' bearings do wear.

Good luck.
 
9

95mustang_gt

New Member
Mar 30, 2005
364
1
0
Wisconsin
Jan 10, 2006
#8
  • Jan 10, 2006
  • #8
well i was messing around a bit and notice when i rev it at idle the sound will get louder.I cant determine if it is coming from the idler pulley or the water pump.
I called autozone they have a idler pulley for $16 should i get it or get a better one?
 
H

hrspwrjunkie

Member
Dec 15, 2004
165
0
18
Jan 10, 2006
#9
  • Jan 10, 2006
  • #9
I would personally go to www.50resto.com and get the original Motorcraft piece for about the same price.

Ryan

95mustang_gt said:
well i was messing around a bit and notice when i rev it at idle the sound will get louder.I cant determine if it is coming from the idler pulley or the water pump.
I called autozone they have a idler pulley for $16 should i get it or get a better one?
Click to expand...
 
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