Can anyone identify this noise?

micko · Oct 15th, 2019, 14:22

https://www.youtube.com/channel/UCI9...pR1XMOTybIsJ-g

ThomasG · Oct 15th, 2019, 14:50

Whatever it is, spins fast.

On the clip, car moves forward/backward. Does the noise go if stationary?

At this moment, my suspects would be:

Unlikely, but still- water pump.
Check by ear/screwdriver method, it's just below and right from cam belt cover.

Pas pump.

Is engine hit enough to start radiator fan?

Manual or automatic?

Clutch gone?

Or, assuming that noise is there only if car rolls backward, maybe gearbox issue?

Best to listen which part of engine bay it's coming from.

Sotosound · Oct 15th, 2019, 15:23

I've heard a similar sound when the PAS reservoir is low, but it normally occurs when lock is being applied.

ThomasG · Oct 15th, 2019, 15:46

That's what I thought, too..

But it doesn't look (on the clip) that steering is being moved right-left..

micko · Oct 15th, 2019, 16:24

It's a manual v40 2.0t 2001 Water pump changed 3 years ago.
I have changed the servo pump and aux belt tensioner recently but noise remains.
Noise occurs as I release the clutch and balance it with the accelerator. Normal clutch movements..no slipping and goes through the gears. No noise from the clutch when pressed down and held or released.
Totally baffled

Ian21401 · Oct 15th, 2019, 18:45

Similar noise from my PAS when on full lock even though fluid level is correct. Mine is an old 1992 940 with mechanical PAS pump.
Does the noise appear when clutch is only partly released, ie being slipped?

micko · Oct 15th, 2019, 19:07

It Only happens when i release the clutch and balance the clutch and acceleration. I don't need to lock the steering to create the noise.

Yettie · Oct 15th, 2019, 20:58

What about clutch release bearing ?
Some Land Rovers with the TD5 engine did/do this.
Just a thought.

Ian21401 · Oct 15th, 2019, 21:27

Quote:

Originally Posted by micko

It Only happens when i release the clutch and balance the clutch and acceleration. I don't need to lock the steering to create the noise.

So you are “slipping” the clutch.
My guess would be clutch release bearing about to give up.

DaveNP · Oct 16th, 2019, 01:09

I get the same noise occasionally from my clutch, not so much from slipping the clutch but just after it bites. No idea what causes it but it's been doing it for years. I have got a leak from the crankshaft oil seal so I wonder if it's due to some minor contamination of the clutch plates. It's after the clutch is released so I'd doubt release baring problem and it's different to when I did have a release bearing fail.

(repeat, it's not enough to notice the clutch slipping or snatching and it's been doing it for years so I don't think a catastrophic failure is about to happen)

Oct 15th, 2019, 14:22	#1
micko New Member Last Online: Jan 18th, 2021 17:28 Join Date: Feb 2015 Location: halmstad	Can anyone identify this noise? https://www.youtube.com/channel/UCI9...pR1XMOTybIsJ-g

Oct 15th, 2019, 14:50	#2
ThomasG Aka MadBabs Last Online: Nov 11th, 2022 15:29 Join Date: Sep 2017 Location: London	Whatever it is, spins fast. On the clip, car moves forward/backward. Does the noise go if stationary? At this moment, my suspects would be: Unlikely, but still- water pump. Check by ear/screwdriver method, it's just below and right from cam belt cover. Pas pump. Is engine hit enough to start radiator fan? Manual or automatic? Clutch gone? Or, assuming that noise is there only if car rolls backward, maybe gearbox issue? Best to listen which part of engine bay it's coming from. __________________ `03 V70 Mk2 Auto 2.4 B5244 NA, 170Bhp, 295K miles (Now parts donor) '05 XC70 MK2 Geartronic, 2.5 B5254T2, 210bhp, 129k miles Last edited by ThomasG; Oct 15th, 2019 at 14:53.

Oct 15th, 2019, 15:46	#4
ThomasG Aka MadBabs Last Online: Nov 11th, 2022 15:29 Join Date: Sep 2017 Location: London	That's what I thought, too.. But it doesn't look (on the clip) that steering is being moved right-left.. __________________ `03 V70 Mk2 Auto 2.4 B5244 NA, 170Bhp, 295K miles (Now parts donor) '05 XC70 MK2 Geartronic, 2.5 B5254T2, 210bhp, 129k miles

Oct 15th, 2019, 18:45	#6
Ian21401 Premier Member Last Online: Feb 11th, 2023 20:32 Join Date: May 2010 Location: Blyth, Northumberland	Similar noise from my PAS when on full lock even though fluid level is correct. Mine is an old 1992 940 with mechanical PAS pump. Does the noise appear when clutch is only partly released, ie being slipped? __________________ Ian. Since 2005: 1992 Volvo 940 estate 2.0L. Manual. Daily driver and workhorse.

Oct 15th, 2019, 20:58	#8
Yettie New Member Last Online: Dec 19th, 2022 20:08 Join Date: Mar 2017 Location: Royston	What about clutch release bearing ? Some Land Rovers with the TD5 engine did/do this. Just a thought. __________________ Volvo S80 2.4d 2007

Oct 15th, 2019, 15:23	#3
Sotosound Premier Member Last Online: Yesterday 18:35 Join Date: Dec 2013 Location: Aylesbury	I've heard a similar sound when the PAS reservoir is low, but it normally occurs when lock is being applied.

Oct 15th, 2019, 16:24	#5
micko New Member Last Online: Jan 18th, 2021 17:28 Join Date: Feb 2015 Location: halmstad	It's a manual v40 2.0t 2001 Water pump changed 3 years ago. I have changed the servo pump and aux belt tensioner recently but noise remains. Noise occurs as I release the clutch and balance it with the accelerator. Normal clutch movements..no slipping and goes through the gears. No noise from the clutch when pressed down and held or released. Totally baffled

Oct 15th, 2019, 19:07	#7
micko New Member Last Online: Jan 18th, 2021 17:28 Join Date: Feb 2015 Location: halmstad	It Only happens when i release the clutch and balance the clutch and acceleration. I don't need to lock the steering to create the noise.

Oct 16th, 2019, 01:09	#10
DaveNP Non VOC Member Last Online: Today 21:52 Join Date: Jun 2011 Location: Milton Keynes	I get the same noise occasionally from my clutch, not so much from slipping the clutch but just after it bites. No idea what causes it but it's been doing it for years. I have got a leak from the crankshaft oil seal so I wonder if it's due to some minor contamination of the clutch plates. It's after the clutch is released so I'd doubt release baring problem and it's different to when I did have a release bearing fail. (repeat, it's not enough to notice the clutch slipping or snatching and it's been doing it for years so I don't think a catastrophic failure is about to happen) __________________ David V70 2.5 10v Torslanda Manual 98 Sreg

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