Vibration Sound when letting off Throttle...Update!

[LukeFR]

Hello All,

Strange one, so please bear with me whilst I try to explain it.

I have some kind of weird strange vibration sound like something is loose and I cannot pinpoint it.

I will explain when it happens

• Slight let off of throttle..
• Certain revs
• It's like vibrating rattle sound

Anyone got any ideas?

 

[dukebox9reg]

Mines doing that at the mo seems like at the back of the engine.now and then even during tick over I can hear a clunking/knocking/rattling sound

 

[MAZ1.8T]

clutch? flywheel, release bearing

 

[mahne]

Hello All,

Strange one, so please bear with me whilst I try to explain it.

I have some kind of weird strange vibration sound like something is loose and I cannot pinpoint it.

I will explain when it happens

• Slight let off of throttle..
• Certain revs
• It's like vibrating rattle sound

Anyone got any ideas?

In or out of gear?

 

[dukebox9reg]

With me.out of gear.dsg with only 43k so didnt think wud be the dual mass.thought the dsgs were lighter on the flywheels.is mapped mind you.sorry bout high jacking

 

[LukeFR]

Hope it's not the clutch.

Usually happens whilst in gear, can stop it if I drop the revs or only happens at a certain rev range.

 

[MAZ1.8T]

dual mass flywheel are prone to rattles and vibrations hence single mass conversion heavier flywheel.

sounds like pressure plate clutch juder or something related.


Not sure on dsg. That said could be engine mounts or loose aux belt etc...

 

[LukeFR]

If the flywheel is rattling, should I be worried?

 

[Lee M]

Tensioner Pully on the Cambelt drive train? Get someone to slightly rev the car and let the car return to idle. You should be able to hear if its coming from under the Cambelt cover. If it is switch it off and tow it to your preferred garage to avoid issues!

Hope you find it.

Cheers lee

Sent from my iPhone using Tapatalk

 

[LukeFR]

Tensioner Pully on the Cambelt drive train?


Sent from my iPhone using Tapatalk

Quite possibly?

I need to check the cambelt cover, as when it went for it changing - they hadn't clipped it back yet and I'msure I did at the time but could have come loose.

It's a strange sound, but also annoying. I do 40 miles a day and spend a bit of it in traffic too so bit worried.

 

[Lee M]

Quite possibly?

I need to check the cambelt cover, as when it went for it changing - they hadn't clipped it back yet and I'msure I did at the time but could have come loose.

It's a strange sound, but also annoying. I do 40 miles a day and spend a bit of it in traffic too so bit worried.

See my update of previous post above.


Sent from my iPhone using Tapatalk

 

[LukeFR]

Cheers mate.

Cambelt was changed 5,000 miles ago, along the with the tensioners apparently.

 

[MAZ1.8T]

aux belt and pulley then, should be changed when cambelt is really

 

[LukeFR]

OK so I have monitored it today and can report back the following.

It vibrates/rattles at 1250-1500rpm only, happens in any gear and even when revving in neutral. I notice it more as I keep my revs between these points.

I am thinking an heat sheild?

 

[MAZ1.8T]

possibly, maybe the mechanics dint it back right

 

[LukeFR]

Be interesting to see if anyone else has the same vibration/rattle at similar revs?

 

[Lee M]

I had my belt, tensioner and Pully (kit) replaced on my cupra r mk.1 the tensioner failed after 4 months. Lucky I spotted the noise it was making before it caused damage!

Your symptoms don't sound the same mate


Sent from my iPhone using Tapatalk

 

[LukeFR]

Glad they sound different - you had me worried the.

 

[Lee M]

Glad they sound different - you had me worried the.

If you don't find the noise it might be worth getting the Cambelt arrangement double checked to be on the safe side.


Sent from my iPhone using Tapatalk

 

[LukeFR]

Ok thanks mate, I hope it's something simple.