S60 2.4 weird noise from engine

Kvandalm · Oct 16th, 2021, 15:41

Hello!

I was hoping the community can help me figure this out. As the title states, my 2001 S60 2.4 (with the B5244S2 engine) is making a strange noise that I can’t get my head around. It’s a sort of pulsating, humming noise that rises and falls with the revs. You can hear it in this video: https://streamable.com/snfey4

I’ve tried running the engine without the serpentine belt, and it doesn’t make a difference. I’ve also tried unplugging the vvt thing by the cam gear, to no avail. Noise is still there. It also doesn’t matter if the car is cold or warm.

Any ideas?

Darlo 1 · Oct 16th, 2021, 17:40

My money is on the timing belt tensioner.

abdiel · Oct 16th, 2021, 17:48

Have you checked for a blocked PCV with the rubber glove method?

T5R92011 · Oct 16th, 2021, 19:23

Timing belt done recently? Tensioner could be too tight which can cause that noise.

Georgeandkira · Oct 16th, 2021, 20:36

I couldn't discern any bad noise.

However, do your front wheels steer smoothly? I ask because the top of the strut's piston looks off-center as if the spring seat's center part (metal) has separated from the dense rubber part. They appear higher than usual too.

Kvandalm · Oct 17th, 2021, 13:05

Quote:

Originally Posted by T5R92011

Timing belt done recently? Tensioner could be too tight which can cause that noise.

Timing belt was done in 2017 according to the service history and the car hasn't been used much since then. I thought it might be the water pump, but when I took a look under the cover that looked very clean, as if it was replaced recently. So I don't know.

Kvandalm · Oct 17th, 2021, 13:07

Quote:

Originally Posted by Georgeandkira

I couldn't discern any bad noise.

However, do your front wheels steer smoothly? I ask because the top of the strut's piston looks off-center as if the spring seat's center part (metal) has separated from the dense rubber part. They appear higher than usual too.

I really haven't given this a thought at all, haha. The car drives absolutely fine, no issues with the suspension 🤷

Kvandalm · Oct 17th, 2021, 13:13

Quote:

Originally Posted by abdiel

Have you checked for a blocked PCV with the rubber glove method?

The noise is the same when the oil cap is off, so I don't think that's the issue.

Oct 16th, 2021, 15:41	#1
Kvandalm New Member Last Online: Apr 12th, 2024 16:23 Join Date: Nov 2020 Location: Stockholm	S60 2.4 weird noise from engine Hello! I was hoping the community can help me figure this out. As the title states, my 2001 S60 2.4 (with the B5244S2 engine) is making a strange noise that I can’t get my head around. It’s a sort of pulsating, humming noise that rises and falls with the revs. You can hear it in this video: https://streamable.com/snfey4 I’ve tried running the engine without the serpentine belt, and it doesn’t make a difference. I’ve also tried unplugging the vvt thing by the cam gear, to no avail. Noise is still there. It also doesn’t matter if the car is cold or warm. Any ideas?

Oct 16th, 2021, 17:40	#2
Darlo 1 Lunatic. Last Online: Yesterday 21:46 Join Date: Dec 2006 Location: staffordshire	My money is on the timing belt tensioner. __________________ V40 1.9D 2004 620 miles to the tankful. 235000 miles on clock. Now sold, S60 D5 2004. I vape therefore I am.

Oct 16th, 2021, 19:23	#4
T5R92011 FCW Auto Service Last Online: Apr 27th, 2024 20:11 Join Date: Feb 2015 Location: Gloucester	Timing belt done recently? Tensioner could be too tight which can cause that noise. __________________ FCW Auto Service (Gloucester) https://www.fcw-autoservice.com

Oct 16th, 2021, 17:48	#3
abdiel VOC Member Last Online: Yesterday 18:02 Join Date: Aug 2014 Location: Further North than the Back of Beyond	Have you checked for a blocked PCV with the rubber glove method?

Oct 16th, 2021, 20:36	#5
Georgeandkira Premier Member Last Online: Apr 27th, 2024 13:23 Join Date: Feb 2009 Location: Hackensack	I couldn't discern any bad noise. However, do your front wheels steer smoothly? I ask because the top of the strut's piston looks off-center as if the spring seat's center part (metal) has separated from the dense rubber part. They appear higher than usual too.

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