squeaky clutch...need some expert advice
12-02-2006, 07:11 PM
#1
Racer
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squeaky clutch...need some expert advice
Please help me diagnose this...its driving me nuts. I've narrowed the squeaking/chirping noise down to rear of the engine. It is not coming from the belts (squeaks with both belts off).
It squeaks ONLY after the engine is warmed up (after about 2 minutes of driving), and then it continues to chirp when I'm on the highway (clutch in or out, in neutral or in gear)...chirp speeds up when engaging the clutch...chirps are more pronounced when car is vibrating e.g. going over bumps or rough pavement...all sounds seem to come from the back of the engine
VERY SELDOM does it squeak at idle but it does occasionally after a longer trip. When it does squeak at idle its much quieter.
Are any of these symptomatic of a bad throw out bearing? Pilot bearing? Release bearing? I really don't know the difference or the inner workings of a clutch, but I'm pretty sure it won't be a cheap fix.
Can anyone help pinpoint this problem based on what I've described?
It squeaks ONLY after the engine is warmed up (after about 2 minutes of driving), and then it continues to chirp when I'm on the highway (clutch in or out, in neutral or in gear)...chirp speeds up when engaging the clutch...chirps are more pronounced when car is vibrating e.g. going over bumps or rough pavement...all sounds seem to come from the back of the engine
VERY SELDOM does it squeak at idle but it does occasionally after a longer trip. When it does squeak at idle its much quieter.
Are any of these symptomatic of a bad throw out bearing? Pilot bearing? Release bearing? I really don't know the difference or the inner workings of a clutch, but I'm pretty sure it won't be a cheap fix.
Can anyone help pinpoint this problem based on what I've described?
Last edited by fovsky; 12-03-2006 at 02:14 PM.
12-03-2006, 12:41 PM
#3
Race Director
Originally Posted by fovsky
Please help me diagnose this...its driving me nuts. I've narrowed the squeaking/chirping noise down to my clutch area. I'm positive its coming from this area.
Here's how it sounds. After the car is warmed up it starts squeaking and won't stop until it comes to an idle. It squeaks the most when the clutch is out, driving over any small bump, driving over 20mph, accelerating/decelerating, pretty much anytime the clutch is out and the car is warmed up.
When the clutch is depressed (or in neutral) and I'm driving, it usually doesn't squeak, and it almost never squeaks when I'm idling.
Are any of these symptomatic of a bad throw out bearing? Pilot bearing? Release bearing? I really don't know the difference or the inner workings of a clutch, but I'm pretty sure it won't be a cheap fix.
Can anyone help pinpoint this problem based on what I've described?
Here's how it sounds. After the car is warmed up it starts squeaking and won't stop until it comes to an idle. It squeaks the most when the clutch is out, driving over any small bump, driving over 20mph, accelerating/decelerating, pretty much anytime the clutch is out and the car is warmed up.
When the clutch is depressed (or in neutral) and I'm driving, it usually doesn't squeak, and it almost never squeaks when I'm idling.
Are any of these symptomatic of a bad throw out bearing? Pilot bearing? Release bearing? I really don't know the difference or the inner workings of a clutch, but I'm pretty sure it won't be a cheap fix.
Can anyone help pinpoint this problem based on what I've described?
You only talk about the car when it is moving or idling, but you don't break it down by each type of occurence.
If you are sitting still and you hear this noise then you have eliminated the suspension items like (sway bars, springs, and shocks).
Next you need to check belts on the front of the motor as they are know to squeal (dampner / harmonic balancer) starts to come a part.
If you don't find your squeal there then drop the inspection cover on your clutch and put car on lift and rev motor and see if it is truly coming from clutch or maybe it's a bearing in the torque tube assembly.
Good luck
12-03-2006, 02:08 PM
#4
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Originally Posted by ajg1915
If you are sitting still with the hand brake on in neutral and you rev the motor does it squeak ?
Originally Posted by ajg1915
You only talk about the car when it is moving or idling, but you don't break it down by each type of occurence.
VERY SELDOM does it chirp at idle but it does occasionally after a longer trip. When idling the chirp is much quieter.
Originally Posted by ajg1915
If you are sitting still and you hear this noise then you have eliminated the suspension items like (sway bars, springs, and shocks).
Originally Posted by ajg1915
Next you need to check belts on the front of the motor as they are know to squeal (dampner / harmonic balancer) starts to come a part.
Originally Posted by ajg1915
If you don't find your squeal there then drop the inspection cover on your clutch and put car on lift and rev motor and see if it is truly coming from clutch or maybe it's a bearing in the torque tube assembly.
Good luck
Good luck
Last edited by fovsky; 12-03-2006 at 02:14 PM.
12-03-2006, 02:25 PM
#5
Race Director
Originally Posted by fovsky
No
...squeaks ONLY after the engine is warmed up (after about 2 minutes of driving), and then it continues to chirp when I'm on the highway (clutch in or out, in neutral or in gear)...chirp speeds up when engaging the clutch...chirps are more pronounced when car is vibrating e.g. going over bumps or rough pavement...all sounds seem to come from the back of the engine
VERY SELDOM does it chirp at idle but it does occasionally after a longer trip. When idling the chirp is much quieter.
Since it occasionally squeaks at idle I've eliminated suspension parts. Plus, I can increase the frequency of the chirping when I rev it up on the highway and slowly let the clutch out, which tells me the squeak is coming from the clutch or somewhere close downstream. I've been told to try to burn the clutch out a few times by doing this to see if it burns off the source of the squeak on the clutch plate, but it didn't work.
Its squeaks with both belts off when driving.
Without any vibrations it may be hard to duplicate this way, but this seems a logical next step.
...squeaks ONLY after the engine is warmed up (after about 2 minutes of driving), and then it continues to chirp when I'm on the highway (clutch in or out, in neutral or in gear)...chirp speeds up when engaging the clutch...chirps are more pronounced when car is vibrating e.g. going over bumps or rough pavement...all sounds seem to come from the back of the engine
VERY SELDOM does it chirp at idle but it does occasionally after a longer trip. When idling the chirp is much quieter.
Since it occasionally squeaks at idle I've eliminated suspension parts. Plus, I can increase the frequency of the chirping when I rev it up on the highway and slowly let the clutch out, which tells me the squeak is coming from the clutch or somewhere close downstream. I've been told to try to burn the clutch out a few times by doing this to see if it burns off the source of the squeak on the clutch plate, but it didn't work.
Its squeaks with both belts off when driving.
Without any vibrations it may be hard to duplicate this way, but this seems a logical next step.
If you have access to a lift I would put it up in the air and drop the exhaust and chasis stiffner to get access to the torque tube.
You could have a bad bearing in the torque tube assembly.
12-03-2006, 02:25 PM
#6
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Originally Posted by phils C5 vette
Is it still the stock clutch ?
12-05-2006, 10:46 AM
#8
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Could it be your crank pulley? I have a squeak then sometimes a chirp. I've noticed I have a slight crank wobble. I believe it is the source for my squeak.
No belts eliminates accessory drives etc. from the culprit. It does not eliminate crank pulley.
I find my squeak is somewhat random. Sometimes it does it, sometimes it doesn't. When you rev the engine, the squeak goes away. Returns back at idle.
No belts eliminates accessory drives etc. from the culprit. It does not eliminate crank pulley.
I find my squeak is somewhat random. Sometimes it does it, sometimes it doesn't. When you rev the engine, the squeak goes away. Returns back at idle.
12-05-2006, 01:43 PM
#9
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Originally Posted by jmiller
Could it be your crank pulley? I have a squeak then sometimes a chirp. I've noticed I have a slight crank wobble. I believe it is the source for my squeak.
No belts eliminates accessory drives etc. from the culprit. It does not eliminate crank pulley.
I find my squeak is somewhat random. Sometimes it does it, sometimes it doesn't. When you rev the engine, the squeak goes away. Returns back at idle.
No belts eliminates accessory drives etc. from the culprit. It does not eliminate crank pulley.
I find my squeak is somewhat random. Sometimes it does it, sometimes it doesn't. When you rev the engine, the squeak goes away. Returns back at idle.
12-05-2006, 02:25 PM
#10
Melting Slicks
Originally Posted by jmiller
Could it be your crank pulley? I have a squeak then sometimes a chirp. I've noticed I have a slight crank wobble. I believe it is the source for my squeak.
No belts eliminates accessory drives etc. from the culprit. It does not eliminate crank pulley.
I find my squeak is somewhat random. Sometimes it does it, sometimes it doesn't. When you rev the engine, the squeak goes away. Returns back at idle.
No belts eliminates accessory drives etc. from the culprit. It does not eliminate crank pulley.
I find my squeak is somewhat random. Sometimes it does it, sometimes it doesn't. When you rev the engine, the squeak goes away. Returns back at idle.
12-05-2006, 08:01 PM
#11
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Originally Posted by gonbad
Absolutely Positively Not The Crank Pulley!
j/k...well worth it...I love my cammed Z
05-08-2010, 11:24 AM
#12
Drifting
Hey there,
i do have exactly the same squeak... drives me nuts!!!
Did you solve the problem? What was the culprit?
Hope anybody can jump in and help...
Jochen
i do have exactly the same squeak... drives me nuts!!!
Did you solve the problem? What was the culprit?
Hope anybody can jump in and help...
Jochen
05-12-2010, 01:43 PM
#13
Drifting
Nobody having an idea?
One more thing i need to mention: A few weeks ago i got a new clutch in the car. Could it be possible that the engine was tilt to far to pull the driveshaft and damaging any lines that runs between the engine and the firewall?
I have the feeling that the noise comes from somwere between the backside of the engine and the firewall/clutch housing.
Beside that, the noise is exactly like fovsky said:
One more thing i need to mention: A few weeks ago i got a new clutch in the car. Could it be possible that the engine was tilt to far to pull the driveshaft and damaging any lines that runs between the engine and the firewall?
I have the feeling that the noise comes from somwere between the backside of the engine and the firewall/clutch housing.
Beside that, the noise is exactly like fovsky said:
Please help me diagnose this...its driving me nuts. I've narrowed the squeaking/chirping noise down to rear of the engine. It is not coming from the belts (squeaks with both belts off).
It squeaks ONLY after the engine is warmed up (after about 2 minutes of driving), and then it continues to chirp when I'm on the highway (clutch in or out, in neutral or in gear)...chirp speeds up when engaging the clutch...chirps are more pronounced when car is vibrating e.g. going over bumps or rough pavement...all sounds seem to come from the back of the engine
VERY SELDOM does it squeak at idle but it does occasionally after a longer trip. When it does squeak at idle its much quieter.
Are any of these symptomatic of a bad throw out bearing? Pilot bearing? Release bearing? I really don't know the difference or the inner workings of a clutch, but I'm pretty sure it won't be a cheap fix.
Can anyone help pinpoint this problem based on what I've described?
It squeaks ONLY after the engine is warmed up (after about 2 minutes of driving), and then it continues to chirp when I'm on the highway (clutch in or out, in neutral or in gear)...chirp speeds up when engaging the clutch...chirps are more pronounced when car is vibrating e.g. going over bumps or rough pavement...all sounds seem to come from the back of the engine
VERY SELDOM does it squeak at idle but it does occasionally after a longer trip. When it does squeak at idle its much quieter.
Are any of these symptomatic of a bad throw out bearing? Pilot bearing? Release bearing? I really don't know the difference or the inner workings of a clutch, but I'm pretty sure it won't be a cheap fix.
Can anyone help pinpoint this problem based on what I've described?
06-16-2010, 12:53 PM
#14
Drifting
After hours and hours of searching under the car, i finally found the reason for the noise!
I am 99% shure the noise came from the engine mounts. I guess after replacing the clutch, the tilt engine "squeezed" the now 13 years old rubber engine mounts.
After i torqued the two bolt from underneath the engine, the noise was gone, and did not came back since a few weeks. Problem solved!
I guess sooner or later i will exchange those old rubber mounts...
Hope someone can benefit from the info!
Jochen
I am 99% shure the noise came from the engine mounts. I guess after replacing the clutch, the tilt engine "squeezed" the now 13 years old rubber engine mounts.
After i torqued the two bolt from underneath the engine, the noise was gone, and did not came back since a few weeks. Problem solved!
I guess sooner or later i will exchange those old rubber mounts...
Hope someone can benefit from the info!
Jochen
