Dr LC8

Member

• Mar 14, 2015

• #1

Hi,

This afternoon, after having used the car in the morning, the car started a very sinister engine noise. It is like a whistle starting around 1800 RPM and finishing at around 3000. Much more noisy in 1st, 2nd and 3rd, less in 4th and not sure in 5th. The more I push on the accellerator the louder it is. Can't hear it at all if the gear is not engaged.

Car runs otherwise well as normal.

Car has 72000 miles. Had since 60000 and just had a service (oils and filters).
Had a "standard" chip done at 63000 miles. No problem since.

Any clue???

Many thanks

Nic

 

johnlad

Well-Known Member

• Mar 14, 2015

• #2

sounds like a warped exhaust manifold,

 

meego

Well-Known Member

• Mar 14, 2015

• #3

Or a Turbo/Turbo Hose issue ???

 

Dr LC8

Member

• Mar 14, 2015

• #4

Hi,

It is getting worse. With the bonnet open it sounds to me like the noise is coming from the turbo. No holes in the pipes. I took the air pipe coming from the filter and checked the turbo fan. It has a 1-2 mm movement sideways. Is it the wheel bearing gone???

Nic

 

KillaJoules

Active Member

• Mar 14, 2015

• #5

Is the noise coming from the engine of transmission

 

johnlad

Well-Known Member

• Mar 14, 2015

• #6

Dr LC8 said:

Hi,

It is getting worse. With the bonnet open it sounds to me like the noise is coming from the turbo. No holes in the pipes. I took the air pipe coming from the filter and checked the turbo fan. It has a 1-2 mm movement sideways. Is it the wheel bearing gone???

Nic

Click to expand...

the turbo does have a little side to side movement as it runs on an oil film which aint there without the engine running, is there any in/out movement on the turbo,
still think its the exhaust manifold, its quite common on remapped cars, though ive vever had it

 

Dr LC8

Member

• Mar 14, 2015

• #7

johnlad said:

the turbo does have a little side to side movement as it runs on an oil film which aint there without the engine running, is there any in/out movement on the turbo,
still think its the exhaust manifold, its quite common on remapped cars, though ive vever had it

Click to expand...

You mean loose or gone?

Nic

 

Dr LC8

Member

• Mar 14, 2015

• #8

Actually now is noisy even in neutral

 

johnlad

Well-Known Member

• Mar 14, 2015

• #9

exhaust manifold warps and allows gas to escape causing a whistle,

 

Dr LC8

Member

• Mar 14, 2015

• #10

johnlad said:

exhaust manifold warps and allows gas to escape causing a whistle,

Click to expand...

The other "variable" to mention is that I just recently had the EGR removed...

...same business???

Nic

 

johnlad

Well-Known Member

• Mar 15, 2015

• #11

Dr LC8 said:

The other "variable" to mention is that I just recently had the EGR removed...

...same business???

Nic

Click to expand...

shouldnt effect it, but check the blanking plate on the manifold

 

N

Nigel1943

Active Member

• Mar 15, 2015

• #12

Hole in intercooler pipe perhaps, causes loud whistle?

 

Mike Jones

Active Member

• Mar 16, 2015

• #13

I had this noise on my first Td5. A manifold stud snapped allowing the exhaust gas leak. Started off sounding like a belt squealing.
Mine also had a Diesel tuning box (160bhp). I wonder if the extra power is a cause or just coincidence as I've not had the same problem on my later unchipped Td5's. I have removed the EGR on all of them.

 

Last edited: Mar 16, 2015

B

biolandy

Well-Known Member

• Mar 16, 2015

• #14

Would put money on exhaust manifold bolts snapping and manifold warping-"singing gasket"

 

Dr LC8

Member

• Mar 16, 2015

• #15

...anyway it is in the garage (Land Rangers Stockport). The guy said he thinks it is a minor problem. He will let me know tomorrow...

Nic

 

Dr LC8

Member

• Mar 17, 2015

• #16

...and the answer is????

Weldone John and thank you!

See below...

johnlad said:

sounds like a warped exhaust manifold,

Click to expand...