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v8bobber



Member Since: 26 Aug 2012
Location: pembrokeshire
Posts: 443

United Kingdom 2008 Defender 110 Puma 2.4 DCPU Java Black
Whistle / squeal from engine bay
Hi all, I’m trying to track down a engine noise which I suspect to be the turbo.

Whilst testing it I have noted that the vehicle will not rev over 3000rpm whilst stationary. Does anyone know why this would be? Is this the case for anyone else?

Cheers

Dave
Post #695907 24th Mar 2018 4:28pm
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williamthedog



Member Since: 29 Dec 2012
Location: south wales
Posts: 3441

2011 Defender 90 Puma 2.4 PU Tamar Blue
Check intercooler hoses as well Thumbs Up
Post #695910 24th Mar 2018 4:31pm
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Tdi4



Member Since: 24 Oct 2014
Location: Houten
Posts: 513

Netherlands 2008 Defender 110 Puma 2.4 CSW Stornoway Grey
Not over 3000 rpm suggests limp mode. Do you have an odb2 reader? a defender from 1984 pretending to be a puma with a touch of Range Rover
Post #695913 24th Mar 2018 4:48pm
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v8bobber



Member Since: 26 Aug 2012
Location: pembrokeshire
Posts: 443

United Kingdom 2008 Defender 110 Puma 2.4 DCPU Java Black
I do but I haven’t got access to it tomorrow. Thing is it drives fine, apart from the annoying noise. No warning lights

Was just wondering if in the meantime someone could see if theirs revved over 3k when stationary. Someone with no neighbours preferably Smile would be a great help
Post #695950 24th Mar 2018 7:15pm
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Tdi4



Member Since: 24 Oct 2014
Location: Houten
Posts: 513

Netherlands 2008 Defender 110 Puma 2.4 CSW Stornoway Grey
I have to pick-up my eldest in 30 min. Will try and inform you a defender from 1984 pretending to be a puma with a touch of Range Rover
Post #695951 24th Mar 2018 7:27pm
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Tdi4



Member Since: 24 Oct 2014
Location: Houten
Posts: 513

Netherlands 2008 Defender 110 Puma 2.4 CSW Stornoway Grey
Hihi

Mine doesn’t either Rolling with laughter

Never noticed it!!!!! a defender from 1984 pretending to be a puma with a touch of Range Rover
Post #695958 24th Mar 2018 7:59pm
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jst



Member Since: 14 Jan 2008
Location: Taunton
Posts: 7977

 2011 Defender 110 Puma 2.4 USW Stornoway Grey
A whistle is prob air related

A squeal belt related, i would check tendioners/idlers Cheers

James
110 2012 XS Utility
130 2011 M57 bespoke Camper
90 2010 Hardtop
90 M57 1988 Hardtop
Post #695987 24th Mar 2018 9:44pm
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v8bobber



Member Since: 26 Aug 2012
Location: pembrokeshire
Posts: 443

United Kingdom 2008 Defender 110 Puma 2.4 DCPU Java Black
Tdi4 you’re a legend. I owe you one. I hoped it might be the case as it revved to EXACTLY 3000 rpm.

It doesn’t sound like a belt or pulley but I can’t rule it out. It reminds me a bit like when you blow through a blade of grass to make that whistling sound, almost a bit “reedy”. When driving it only seems to appear as boost builds.

I’ve tightened all the hose clamps. Checked the turbo to manifold fixings, the turbo to exhaust flange bolts, taken the elbow from the turbo off and reseated it. Still no joy.
Post #695993 24th Mar 2018 10:48pm
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Tdi4



Member Since: 24 Oct 2014
Location: Houten
Posts: 513

Netherlands 2008 Defender 110 Puma 2.4 CSW Stornoway Grey
You’re more than welcome!

Have you checked the bolt and the studs between the exhaust manifold and the turbo? My studs are coming loose and i have a similar sound when they do a defender from 1984 pretending to be a puma with a touch of Range Rover
Post #695998 24th Mar 2018 11:11pm
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Maxxed_Ross



Member Since: 06 Jun 2012
Location: Bathgate / North Sea
Posts: 340

Scotland 2001 Defender 90 Td5 CSW Cobar Blue
my TD5 snapped the stud closest to the bulk head and you're describing the exact nose that it used to make when accelerating
Post #696000 24th Mar 2018 11:14pm
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v8bobber



Member Since: 26 Aug 2012
Location: pembrokeshire
Posts: 443

United Kingdom 2008 Defender 110 Puma 2.4 DCPU Java Black
Was that the manifold stud?

As I mentioned earlier all the other fixings seem to be tight and i can’t see any “sooting” from anywhere, to make me think a gasket had gone
Post #696003 25th Mar 2018 12:21am
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Tdi4



Member Since: 24 Oct 2014
Location: Houten
Posts: 513

Netherlands 2008 Defender 110 Puma 2.4 CSW Stornoway Grey
That reminds me. I had the same problem. Detecting where the noise came from because it only happened when the engine was on “load”. That means driving.

Perhaps you can record the sound? If it’s the whistling type then i strongly suspect the leak to be somewhere in the exhaust system. So somewhere between the exhaust maninfold and the cat. can be a gasket and Or a bolt of stud.

Last resort as i see it. Is to take the bonnet of put the misses on the side wing and drive 80 Miles per hour. Perhaps she can pint point the noise Rolling with laughter a defender from 1984 pretending to be a puma with a touch of Range Rover
Post #696006 25th Mar 2018 6:21am
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v8bobber



Member Since: 26 Aug 2012
Location: pembrokeshire
Posts: 443

United Kingdom 2008 Defender 110 Puma 2.4 DCPU Java Black
I’m not sure if that would cure the whistling, but it might cure the whining noise that happens from the area of the passenger seat
Post #696026 25th Mar 2018 10:09am
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Tdi4



Member Since: 24 Oct 2014
Location: Houten
Posts: 513

Netherlands 2008 Defender 110 Puma 2.4 CSW Stornoway Grey
Embarassed Embarassed

Rolling with laughter a defender from 1984 pretending to be a puma with a touch of Range Rover
Post #696035 25th Mar 2018 11:42am
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v8bobber



Member Since: 26 Aug 2012
Location: pembrokeshire
Posts: 443

United Kingdom 2008 Defender 110 Puma 2.4 DCPU Java Black
Right, I’ve taken a short video of the noise from the engine to see if anyone can put their finger on it.

The noise is more pronounced and starts earlier on when driving

Post #696053 25th Mar 2018 2:48pm
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