95 cobra squeal - Mustang Evolution

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Old 08-17-2011, 10:01 AM   #1
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95 cobra squeal

Thought it was bearings in one of my pulleys but I'm not hearing it real well while standing in front of the motor with the hood up. If I get on the ground I hear it better under the car. What could this be? It doesn't do it all the time.
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Old 08-17-2011, 10:33 AM   #2
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Hey nice stang man. If it's a pulley u can check by taking the Serpentine belt off and spinning the pulleys one by one see if they wobble Or make the noise your talking about but it sounds like idler tensioner they make belt conditioner or a bar of soap does the same thing hope thAt helps
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Old 08-17-2011, 11:06 AM   #3
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Thanks. I've already done as you stated above. I've also have put a new power steering pump on, new tensioner pulley, and had my alternator rebuilt. I can hear it 100 times better from under the car than in front with hood up looking at the pulleys. The only pulleys left are the crank, idler, ac, and water pump. The one for smog is replaced with a stand alone pully.
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Old 08-17-2011, 03:03 PM   #4
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The only thing under neath there that I can think would be the harmonic balancer look at the rubber strip that goes around it if it's not flush or cracked /broken off it will make it hum and usually wobble
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Old 08-17-2011, 03:17 PM   #5
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Quote:
Originally Posted by Fox5.0
The only thing under neath there that I can think would be the harmonic balancer look at the rubber strip that goes around it if it's not flush or cracked /broken off it will make it hum and usually wobble
Harmonic Balancer for sure. They are known to warp in these cars. Mine went on my stock engine to, cheap and easy fix
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Old 08-17-2011, 09:03 PM   #6
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Quote:
Originally Posted by Brett Greene

Harmonic Balancer for sure. They are known to warp in these cars. Mine went on my stock engine to, cheap and easy fix
There is zero play in this, could it still be bad? How do you go about changing it out?
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Old 08-17-2011, 09:06 PM   #7
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Have you listened near the back of the motor, it may be in that area.
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Old 08-17-2011, 09:25 PM   #8
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Quote:
Originally Posted by 93slowstang
Have you listened near the back of the motor, it may be in that area.
What could that be?
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Old 08-17-2011, 09:28 PM   #9
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Possibly your throw out bearing, assuming it's a manual.
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Old 08-17-2011, 09:32 PM   #10
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Originally Posted by 93slowstang
Possibly your throw out bearing, assuming it's a manual.
Yes it is but it does it whether it's pushed to the floor or not.
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Old 08-17-2011, 09:34 PM   #11
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Quote:
Originally Posted by jhagan1980

Yes it is but it does it whether it's pushed to the floor or not.
So is mine. I'm changing it tomorrow because of that.
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Old 08-17-2011, 09:41 PM   #12
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No it's not to hard chilton Manuel should get u through it but make sure it's bad first did u see the rubber piece I was talking about if it's not looken bad not it more info might help does get louder or quiter at anytime any thing changed recently
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Old 08-17-2011, 09:49 PM   #13
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Quote:
Originally Posted by 93slowstang

So is mine. I'm changing it tomorrow because of that.
Changing what? Throw out bearing? Will it squeal if the pedal is pushed down?
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Old 08-17-2011, 09:50 PM   #14
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Ya it will squeal no matter what
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Old 08-17-2011, 09:52 PM   #15
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Quote:
Originally Posted by Fox5.0
No it's not to hard chilton Manuel should get u through it but make sure it's bad first did u see the rubber piece I was talking about if it's not looken bad not it more info might help does get louder or quiter at anytime any thing changed recently
No it doesn't get louder at anytime but it does come and go. Nothing has changed recently. I've read where it can spin so you can check it by marking the two pieces with a line. Drive it for awhile and check for the lines to still match up.
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Old 08-17-2011, 10:02 PM   #16
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Quote:
Originally Posted by jhagan1980

Changing what? Throw out bearing? Will it squeal if the pedal is pushed down?
Yeah the throw out bearing, it's a pain to do right now but it's gotta be done, and yes it was squealing even with the pedal pushed in.
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Old 08-17-2011, 10:31 PM   #17
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It's not a DD, if it was the TOB would it be alright to make it a winter project?
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Old 08-17-2011, 10:48 PM   #18
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Quote:
Originally Posted by jhagan1980
It's not a DD, if it was the TOB would it be alright to make it a winter project?
It should only really take a day, maybe 2 if you take your time. It would be a good time to change your clutch if it is your TOB.
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Old 08-17-2011, 11:26 PM   #19
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Quote:
Originally Posted by 93slowstang

It should only really take a day, maybe 2 if you take your time. It would be a good time to change your clutch if it is your TOB.
Sorry I should've clarified better, would it be safe to drive occasionally till winter? I'm not gonna screw anything up by doing so, right?
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Old 08-17-2011, 11:30 PM   #20
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Quote:
Originally Posted by jhagan1980

Sorry I should've clarified better, would it be safe to drive occasionally till winter? I'm not gonna screw anything up by doing so, right?
If that is the problem it might make it without doing any damage. It will definitely screw the clutch up if it breaks apart.
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Old 08-17-2011, 11:48 PM   #21
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Thanks for the help guys.
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Old 08-18-2011, 08:41 PM   #22
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I've been informed by my local stealership that a TOB will not squeal when pedal is pressed. Also, they say a common prob is the crank seal will dry out and squeal. Wouldn't I hear this infront of the engine better than below?
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Old 08-18-2011, 09:02 PM   #23
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Re: 95 cobra squeal

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Originally Posted by jhagan1980 View Post
I've been informed by my local stealership that a TOB will not squeal when pedal is pressed. Also, they say a common prob is the crank seal will dry out and squeal. Wouldn't I hear this infront of the engine better than below?
Not necessarily as it is located down low in the engine.

It could be the bearing in your idler pulley or you may have a pulley that is just worn out and slipping the belt a bit.

Try "lightly" spraying the belt with some penetrating oil at the pulleys one at a time.
I have successfully used this method to locate squealing problems before.
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Old 08-18-2011, 09:15 PM   #24
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Re: 95 cobra squeal

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Originally Posted by Trojan Horse View Post
Not necessarily as it is located down low in the engine.

It could be the bearing in your idler pulley or you may have a pulley that is just worn out and slipping the belt a bit.

Try "lightly" spraying the belt with some penetrating oil at the pulleys one at a time.
I have successfully used this method to locate squealing problems before.
Ding ding ding, my bet is on the belt. It will cause occasional sounds that are very hard to diagnose.
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