G/box: 2WD: Noise come from left side when car idle

[myfirstv70]

Check your alternator pulley.....they only turn one way and get very noisy when they fail....it sounds like hard stones knocking together......get a long bar or screwdriver put one end to your ear and the other end on the thing you think is making the noise and you'll know 100% where the noise is coming from. My pulley failed at 120k miles or 200k km, the noise disappeared when increasing the revs slightly.
Good Luck,
Nobby

[sirdani]

Originally Posted by Lancee

Not sure what car you have ?
Dual mass flywheel failing ?

@LANCEE

I started a new thread, because there are 2 types of noises now. Maybe the second type of noise speaks a little more information.

https://www.volvoforums.org.uk/showthread.php?t=327143

[sirdani]

Originally Posted by Georgeandkira

It sounds like something which spins which is very worn out.

Before you do anything with tools, start the engine, establish the noise then turn the A/C on and off in 5 second shots. Listen for changes.

Simply relieve the pressure on the accessory belt tensioner and unhoop it from one of the pulleys. The system will slacken.

Make a schematic drawing beforehand

Grab each pully and try to move it. My guess is that you'll find one extremely loose.

How many miles are on this car? What year it it?

@Georgeandkira

I started a new thread, because there are 2 types of noises now. Maybe the second type of noise speaks a little more information.

https://www.volvoforums.org.uk/showthread.php?t=327143

[sirdani]

Originally Posted by stuart bowes

sounds like you should drop the fluid pronto and refill, it's not a difficult procedure

most people do it three times spread over 5-600 miles or so

first maybe check the level before you do so has it even got the right amount in it

@stuart bowes

I started a new thread, because there are 2 types of noises now. Maybe the second type of noise speaks a little more information.

https://www.volvoforums.org.uk/showthread.php?t=327143

[sirdani]

Originally Posted by myfirstv70

Check your alternator pulley.....they only turn one way and get very noisy when they fail....it sounds like hard stones knocking together......get a long bar or screwdriver put one end to your ear and the other end on the thing you think is making the noise and you'll know 100% where the noise is coming from. My pulley failed at 120k miles or 200k km, the noise disappeared when increasing the revs slightly.
Good Luck,
Nobby

@myfirstv70

I started a new thread, because there are 2 types of noises now. Maybe the second type of noise speaks a little more information.

https://www.volvoforums.org.uk/showthread.php?t=327143

[Georgeandkira]

Clicking stuff is still hard to diagnose even with a video.
A transmission in P has only its pump and torque converter in motion. Anything clicking in an automatic would be reason enough to do a fluid dump on the chance you'd see bits but there'd be no guarantee.

Relieving the accessory belt tension and inspecting what you can is simple and easy to do.

Remember, the timing belt also has an idler and a tensioning pulley. As well, it drives the water pump which, upon failure, can make noise.

I do not know what sounds the cam positioning actuators can make but they're driven by the timing belt too.

[sirdani]

Originally Posted by Georgeandkira

Clicking stuff is still hard to diagnose even with a video.
A transmission in P has only its pump and torque converter in motion. Anything clicking in an automatic would be reason enough to do a fluid dump on the chance you'd see bits but there'd be no guarantee.

Relieving the accessory belt tension and inspecting what you can is simple and easy to do.

Remember, the timing belt also has an idler and a tensioning pulley. As well, it drives the water pump which, upon failure, can make noise.

I do not know what sounds the cam positioning actuators can make but they're driven by the timing belt too.

Yes, today I showed the car to another tranny specialised repair guy.

His advice is to change oil & filter in the transmission. So I ordered the filter and let us see what's next.

When I open up the hood I can hear the noise coming from the transmission side, not from the timing belt side, that is the main problem.

When I close the hood, and hear the car from the front left wheel, the noise is very clearly comes from there.

So I can excluse this timing belt thing.

[stuart bowes]

When you took it for checking did you tell them the recent history of the changing of drive shafts / losing oil / replacing seals and filling up with fluid again because it all sounds very relevant..

Also just out of curiosity which fluid did you use, did you check the type first somewhere

[sirdani]

Originally Posted by stuart bowes

When you took it for checking did you tell them the recent history of the changing of drive shafts / losing oil / replacing seals and filling up with fluid again because it all sounds very relevant..

Also just out of curiosity which fluid did you use, did you check the type first somewhere

Yes, but after the drive shaft repair and oil fill I used the car for half month without any problem. The sound comes only after that.

I use Mannol Dexron III
https://www.mannol.de/products/gear-...atf-dexron-iii

There was a tranny rebuild 8 months ago, and the service recommend to replace the oil after 10,000km because after the tranny rebuild the fresh oil can collect some dirt e.g. from the transmission cooler and from other parts.

We are exactly on 10,000km now. So we replace the oil & filter and re-check again.

But car started to produce new type of noises too like this:
https://streamable.com/7vmbu0
And this noise is very different from clogged oil filter.

Let us see when we drop off the pan.

[myfirstv70]

So, did you listen to the alternator.?....your noise sounded exactly like my noise when my pulley failed at 200,000km.....