Rattle when shutting off engine
Thread Starter
Racer
Joined: Jun 2008
Posts: 381
Likes: 0
Rattle when shutting off engine
I've got a C5Z06 with 18,000 miles on it.
I noticed when shutting of the engine sometimes I get a rattle sound. When I have the clutch pushed in and shut-off the engine I don't get the rattle.
According to the "sticky" (weights, measurements, ratios) in the C5 General section. It says the following:
On manual transmission cars (M6 or M12), the transmission sounds like it is rattling when leaving the line. It is normal. It is the clutch throwout bearing rattling around. Sometimes you'll hear a horrible rattle if you shut off the engine. If you press the clutch pedal in while shutting off the car, you won't hear it.
I just want to know if other people have experienced this, or should I worry?!
I noticed when shutting of the engine sometimes I get a rattle sound. When I have the clutch pushed in and shut-off the engine I don't get the rattle.
According to the "sticky" (weights, measurements, ratios) in the C5 General section. It says the following:
On manual transmission cars (M6 or M12), the transmission sounds like it is rattling when leaving the line. It is normal. It is the clutch throwout bearing rattling around. Sometimes you'll hear a horrible rattle if you shut off the engine. If you press the clutch pedal in while shutting off the car, you won't hear it.
I just want to know if other people have experienced this, or should I worry?!
Tech Contributor
Joined: May 2008
Posts: 2,843
Likes: 16
From: Howell Michigan
St. Jude Donor '09-'10-'11
Is this something new or has it always done it? I get a rattle, and I don’t like it, but I would not call it “horrible”. If it is something new or just started, I would be concern.
Hope you get it figured out,
Eric D
Hope you get it figured out,
Eric D
Last edited by Eric D; Jul 14, 2008 at 11:24 AM.
Thread Starter
Racer
Joined: Jun 2008
Posts: 381
Likes: 0
When I push the clutch the rattle never happens.
Racer
Joined: Dec 2005
Posts: 263
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From: Tucson Arizona
Pro
Joined: Jun 2008
Posts: 575
Likes: 10
From: Oskaloosa Iowa
i know the sound you guys are talking about and mine does it too, but has anyone ever noticed the same sort of sound but not as loud when you let the clutch out to move at a stop sign or shifting into 2nd? i had my windows up Saturday and noticed that the sound sounds like its coming from below the radio (under console) not in interior of car
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Safety Car
Joined: Aug 2000
Posts: 4,933
Likes: 30
From: San Rafael CA
The Corvette drivetrain is an "extended" drive train. Picture two scenarios to help understand this .... in both scenarios my foot is off the clutch .... gearbox in Neutral.
1) REGULAR car ..... besides the engine the only moving parts are the clutch assembly and the input shaft to the gearbox.
2) CORVETTE .... besides the engine the clutch assembly is turning along with the propeller shaft in the torque tube which is "driving" the input shaft in the gearbox.
When I turn off a Corvette (in Neutral and my foot OFF the clutch pedal) there are a whole bunch of rotating parts that come to a stop. Each part has a different weight or mass, and slows at a different rate. Because there is some slight "slop" between the parts, the difference in the speeds causes the parts to "rattle" against each other.
If you don't want to hear the rattle .... step on the clutch pedal and turn off the engine.
The Corvette "death rattle" is normal because of the design of the car .... the tranny is in the rear .... not the front of the car.
Safety Car
Joined: Sep 2007
Posts: 3,816
Likes: 16
From: Anchorage Alaska
St. Jude Donor '08-'09-'10
Excellent explanation! So, is it correct to assume, then, that WHEN I shut the engine off with my foot on the clutch pedal... the only rotating components left in motion are locked together as one piece, and therefore do not rattle? As far as I understand... when the clutch pedal is not pressed, the entire driveline rotates all the way back to the transmission. But with the clutch pedal pressed, the clutch (which is up front) disengages and separates the drivetrain from that point and aft. Is my understanding correct?
And to Jameel... I remember when you posted last month about the car you were looking at. Now I see you have one. congrats! The noise, as was said above, is normal... mine's done it the entire time too. Just shut the car off with the clutch pressed, and you're golden.
And to Jameel... I remember when you posted last month about the car you were looking at. Now I see you have one. congrats! The noise, as was said above, is normal... mine's done it the entire time too. Just shut the car off with the clutch pressed, and you're golden.
Thread Starter
Racer
Joined: Jun 2008
Posts: 381
Likes: 0
It's not the throw out bearing .......
The Corvette drivetrain is an "extended" drive train. Picture two scenarios to help understand this .... in both scenarios my foot is off the clutch .... gearbox in Neutral.
1) REGULAR car ..... besides the engine the only moving parts are the clutch assembly and the input shaft to the gearbox.
2) CORVETTE .... besides the engine the clutch assembly is turning along with the propeller shaft in the torque tube which is "driving" the input shaft in the gearbox.
When I turn off a Corvette (in Neutral and my foot OFF the clutch pedal) there are a whole bunch of rotating parts that come to a stop. Each part has a different weight or mass, and slows at a different rate. Because there is some slight "slop" between the parts, the difference in the speeds causes the parts to "rattle" against each other.
If you don't want to hear the rattle .... step on the clutch pedal and turn off the engine.
The Corvette "death rattle" is normal because of the design of the car .... the tranny is in the rear .... not the front of the car.
The Corvette drivetrain is an "extended" drive train. Picture two scenarios to help understand this .... in both scenarios my foot is off the clutch .... gearbox in Neutral.
1) REGULAR car ..... besides the engine the only moving parts are the clutch assembly and the input shaft to the gearbox.
2) CORVETTE .... besides the engine the clutch assembly is turning along with the propeller shaft in the torque tube which is "driving" the input shaft in the gearbox.
When I turn off a Corvette (in Neutral and my foot OFF the clutch pedal) there are a whole bunch of rotating parts that come to a stop. Each part has a different weight or mass, and slows at a different rate. Because there is some slight "slop" between the parts, the difference in the speeds causes the parts to "rattle" against each other.
If you don't want to hear the rattle .... step on the clutch pedal and turn off the engine.
The Corvette "death rattle" is normal because of the design of the car .... the tranny is in the rear .... not the front of the car.
And to Jameel... I remember when you posted last month about the car you were looking at. Now I see you have one. congrats! The noise, as was said above, is normal... mine's done it the entire time too. Just shut the car off with the clutch pressed, and you're golden.
Yah it's a different car also an 03 and yellow. It only had 18500 miles, 1 owner Canadian car. Amazing condition. In fact because of the low kms and great condition it qualified for the GMPP warranty.
Le Mans Master
Joined: Dec 2001
Posts: 7,788
Likes: 6
From: Winchester TN
Cruise-In III Veteran
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St. Jude Donor '03-'04-'05-'06-'07-'11
It's not the throw out bearing .......
The Corvette drivetrain is an "extended" drive train. Picture two scenarios to help understand this .... in both scenarios my foot is off the clutch .... gearbox in Neutral.
1) REGULAR car ..... besides the engine the only moving parts are the clutch assembly and the input shaft to the gearbox.
2) CORVETTE .... besides the engine the clutch assembly is turning along with the propeller shaft in the torque tube which is "driving" the input shaft in the gearbox.
When I turn off a Corvette (in Neutral and my foot OFF the clutch pedal) there are a whole bunch of rotating parts that come to a stop. Each part has a different weight or mass, and slows at a different rate. Because there is some slight "slop" between the parts, the difference in the speeds causes the parts to "rattle" against each other.
If you don't want to hear the rattle .... step on the clutch pedal and turn off the engine.
The Corvette "death rattle" is normal because of the design of the car .... the tranny is in the rear .... not the front of the car.
The Corvette drivetrain is an "extended" drive train. Picture two scenarios to help understand this .... in both scenarios my foot is off the clutch .... gearbox in Neutral.
1) REGULAR car ..... besides the engine the only moving parts are the clutch assembly and the input shaft to the gearbox.
2) CORVETTE .... besides the engine the clutch assembly is turning along with the propeller shaft in the torque tube which is "driving" the input shaft in the gearbox.
When I turn off a Corvette (in Neutral and my foot OFF the clutch pedal) there are a whole bunch of rotating parts that come to a stop. Each part has a different weight or mass, and slows at a different rate. Because there is some slight "slop" between the parts, the difference in the speeds causes the parts to "rattle" against each other.
If you don't want to hear the rattle .... step on the clutch pedal and turn off the engine.
The Corvette "death rattle" is normal because of the design of the car .... the tranny is in the rear .... not the front of the car.
There ya go.
Normal. Not to be worried about.
NEXT!
best regards -
mqqn
Safety Car
Joined: Aug 2000
Posts: 4,933
Likes: 30
From: San Rafael CA
Excellent explanation! So, is it correct to assume, then, that WHEN I shut the engine off with my foot on the clutch pedal... the only rotating components left in motion are locked together as one piece, and therefore do not rattle? As far as I understand... when the clutch pedal is not pressed, the entire driveline rotates all the way back to the transmission. But with the clutch pedal pressed, the clutch (which is up front) disengages and separates the drivetrain from that point and aft. Is my understanding correct?
And to Jameel... I remember when you posted last month about the car you were looking at. Now I see you have one. congrats! The noise, as was said above, is normal... mine's done it the entire time too. Just shut the car off with the clutch pressed, and you're golden.
And to Jameel... I remember when you posted last month about the car you were looking at. Now I see you have one. congrats! The noise, as was said above, is normal... mine's done it the entire time too. Just shut the car off with the clutch pressed, and you're golden.
Thread Starter
Racer
Joined: Jun 2008
Posts: 381
Likes: 0
I didn't have a tape with my car. I don't know if the previous owner removed it or Canadian cars didn't come with the tape. Where can I find a copy of this video. Is it posted on youtube ?
Thanks.
Pro
Joined: Sep 2019
Posts: 569
Likes: 16
From: Ozarks
Originally Posted by Jameel;1566295343
1/
1/
I've got a C5Z06 with 18,000 miles on I
2/ Should I worry?!
2/ Should I worry?!
2/ Will that make your life better?
Seriously, that sounds like an exhaust rattle to me!