DISCO3.CO.UK - View topic - Noise whilst Reving and coasting

Advertise on DISCO3.CO.UK

Forum · Gallery · Wiki · Shop · Sponsors

Home · FAQ · New Posts · My Posts · PMs · Search · Members · Members Map · Groups · Profile · Donate · Log In

DISCO3.CO.UK > Technical (D3)

Noise whilst Reving and coasting

Page 1 of 1

Kizzy1992

Member Since: 16 Aug 2020
Location: Bn149hq
Posts: 4

Noise whilst Reving and coasting

Hi all I’m new to the forum and also the Land Rover lifestyle I have bought a bit of a project disco 3 with a few hopefully little problems the first one I want to get sorted is a kind of metal to metal sound that happens when I remove my foot from the accelerator and also when the car is stationary and I rev it it also make the noise

I have stuck my head in the engine bay whilst someone has revved it for me i it seems to come from the right hand side pulleys

If anyone has any ideas please let me know

16th Aug 2020 11:04 pm

PROFSR G

Member Since: 06 Mar 2017
Location: Lost
Posts: 4869

2009 Discovery 3 TDV6 Commercial XS Auto Stornoway Grey

Most likely one of the two drive belt tensioners are on the way out. Take the belt off and check the upper and lower tensioners. (note the correct orientation of the belt) If there is any cracking of the belt track change that too.

There are other possibilities but check the above first. yµ (idµ - eAµ) ψ=mψ

16th Aug 2020 11:29 pm

Kizzy1992

Member Since: 16 Aug 2020
Location: Bn149hq
Posts: 4

Thanks for the reply I will let you know the outcome as soon as I can get the fan off 😂

17th Aug 2020 7:00 am

Globetrotter448

Member Since: 21 Mar 2017
Location: Londonderry NSW
Posts: 1791

2007 Discovery 3 4.0 V6 Petrol SE Auto Java Black

You dont need the fan off. Loosen the bolt holding the tensioner and put a screw driver in to take up the tension and slip the belt off. Some have provision for an extension bar in them to take up tension

18th Aug 2020 4:14 am

Kizzy1992

Member Since: 16 Aug 2020
Location: Bn149hq
Posts: 4

Right belt is off and it is still making the noise

25th Aug 2020 4:23 pm

PROFSR G

Member Since: 06 Mar 2017
Location: Lost
Posts: 4869

Better have the timing belts/tensioner and idlers checked so. I would advise against driving it until the problem is confirmed.

yµ (idµ - eAµ) ψ=mψ

25th Aug 2020 4:32 pm

Kizzy1992

Member Since: 16 Aug 2020
Location: Bn149hq
Posts: 4

Just stuck my head in the engine bay and got someone to rev it the noise may be coming from the air intake does this help at all?

25th Aug 2020 5:46 pm

PROFSR G

Member Since: 06 Mar 2017
Location: Lost
Posts: 4869

Not really, noises can be confounding unless you're experienced with diagnosing them. It may turn out to be something simple, but it's difficult to be definitive at this distance!!
You could upload a vid or sound clip to YouTube and post a link here! yµ (idµ - eAµ) ψ=mψ

25th Aug 2020 6:07 pm

Globetrotter448

Member Since: 21 Mar 2017
Location: Londonderry NSW
Posts: 1791

Have you a stethoscope, if not a large screwdriver will do. With the screw driver, put one end on different places and put your ear on the handle and listen for where the noise is coming from. The louder the noise the closer you are to the problem.

26th Aug 2020 12:19 am

PROFSR G

Member Since: 06 Mar 2017
Location: Lost
Posts: 4869

It could be just boost a pressure leak which would explain why you think its near the air intake. If so it should be easy to confirm if you check thoroughly the intercooler pipe, plenum chamber seal, and the "Y" junction pipe seals.

The only other innocuous possibility is the exhaust crossover pipe behind the engine. It may have sprung a crack which can squeal when exh gas is forced through it.

Sorry I should have mentioned it earlier, but it's been a busy day

yµ (idµ - eAµ) ψ=mψ

26th Aug 2020 1:31 am

Page 1 of 1

Jump to:

< Previous Topic | Next Topic >

Posting Rules

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum

Quote Reply

DISCO3.CO.UK is independent and not affiliated to Land Rover.