engine noise....even after belts changed

[mikeyw]

A while back I asked what this horrible whurring/screeching sort of noise may have been coming from my engine (only when in gear & above 3000rpm). I was told that it was probably one of the belts. Over the weekend both cam belt/aux belt & pulleys/tensioners were replaced at a great cost to me but the noise has not dissappeared. Can anyone tell me what else this noise may be. Thanks

 

[ilovemy182]

could it be the dephaser pully? mines abit noisy! usualy on tickover but....

Dave.

 

[Dave..]

A worn dephaser sounds nothing like what he has described. Sure it's only when in gear? Tried coasting and seeing if the noise is there still?

Could potentially be clutch or gearbox related.

 

[mikeyw]

Yeh the noise only happens when under strain, ie when in gear moving (doesnt happen when revving stationary). Its not mega loud but is definately noticable above normal engine noise

 

[lemonnobby]

got a video?

 

[mikeyw]

Right.... after further investigation, the noise is definately coming from lower down in the engine bay which is now making me think something to do with the exhaust (could be an air leak that is causing the noise). The noise does get more prominent as the engine gets warmer which could be exhaust again.

Has anyone had anything like this before? Please help its driving me crazy

 

[Trainerbrow]

Diff.

Deffo sounds box related

who did your belts if you dont mind us asking

 

[mikeyw]

RS Murray in Leeds did my belts & some other bits on Friday (but missed this one^). Im gonna take it back tomorrow & try explain a little better this time

 

[Trainerbrow]

could it be a whine from the water pump??

Just a bit funny its only under load, makes me think its drivetrain

 

[SBV116]

I reckon its the sealing ring / fitting kit between the can and manifold! causes a squawking kind of noise as air rushes past under acceleration!

 

[Magic Johnson]

I've got this. It chirps like a bird on start up, and everytime I change gear if my revs are too low. Basically whenever the engine shakes.

I thought it was the aux belt but it was coming from round the back of the engine. Going in on thursday for investigation.

 

[mikeyw]

Me thinks it could be the manifold joint as well, sounds like a kind of squawking yeh & coming from that direction-ish. I will pass this info on to the mechanics tomorrow to help them sort it asap.

Thanks for all your help guys

 

[coley22]

I reckon its the sealing ring / fitting kit between the can and manifold! causes a squawking kind of noise as air rushes past under acceleration!

Mine does this, what is the cure?

 

[coley22]

I've got this. It chirps like a bird on start up, and everytime I change gear if my revs are too low. Basically whenever the engine shakes.

I thought it was the aux belt but it was coming from round the back of the engine. Going in on thursday for investigation.

What did they say?

 

[coley22]

Bumpty bump

 

[mikeyw]

Sorry, forgot about posting the solution.Lol

It turns out it that the sealing ring between the manifold/cat had perished, causing an air leak. 1 new sealing ring later & hey presto its fixed.

 

[coley22]

Ok cheers, basically the noise on mine is the following;

Cheerpy tweeting
Only when under throttle
Over about 4k revs
mainly noticeable when going up a steep dual carriage way

Do these symptoms sound the same as yours?

 

[coley22]

Sorry, forgot about posting the solution.Lol

It turns out it that the sealing ring between the manifold/cat had perished, causing an air leak. 1 new sealing ring later & hey presto its fixed.

How much did you pay??? btw