 | Home > Puma (Tdci) > Whistle / squeal from engine bay |
 
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| williamthedog Member Since: 29 Dec 2012 Location: south wales Posts: 3441  
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Check intercooler hoses as well
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24th Mar 2018 5:31pm |
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| Tdi4 Member Since: 24 Oct 2014 Location: Houten Posts: 513  
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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
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24th Mar 2018 5:48pm |
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| v8bobber Member Since: 26 Aug 2012 Location: pembrokeshire Posts: 437  
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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  would be a great help |
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24th Mar 2018 8:15pm |
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| Tdi4 Member Since: 24 Oct 2014 Location: Houten Posts: 513
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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
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24th Mar 2018 8:27pm |
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| Tdi4 Member Since: 24 Oct 2014 Location: Houten Posts: 513
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Hihi
Mine doesn’t either 
Never noticed it!!!!! a defender from 1984 pretending to be a puma with a touch of Range Rover |
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24th Mar 2018 8:59pm |
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| jst Member Since: 14 Jan 2008 Location: Taunton Posts: 7682 
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A whistle is prob air related
A squeal belt related, i would check tendioners/idlers Cheers James 110 XS Utility 130 Puma Station wagon/camper (in the making) 90 Puma Hardtop |
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24th Mar 2018 10:44pm |
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| v8bobber Member Since: 26 Aug 2012 Location: pembrokeshire Posts: 437
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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. |
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24th Mar 2018 11:48pm |
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| Tdi4 Member Since: 24 Oct 2014 Location: Houten Posts: 513
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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 |
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25th Mar 2018 12:11am |
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| Maxxed_Ross Member Since: 06 Jun 2012 Location: Bathgate / North Sea Posts: 340  
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my TD5 snapped the stud closest to the bulk head and you're describing the exact nose that it used to make when accelerating
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25th Mar 2018 12:14am |
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| v8bobber Member Since: 26 Aug 2012 Location: pembrokeshire Posts: 437
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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 |
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25th Mar 2018 1:21am |
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| Tdi4 Member Since: 24 Oct 2014 Location: Houten Posts: 513
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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 a defender from 1984 pretending to be a puma with a touch of Range Rover |
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25th Mar 2018 7:21am |
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| v8bobber Member Since: 26 Aug 2012 Location: pembrokeshire Posts: 437
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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
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25th Mar 2018 11:09am |
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| Tdi4 Member Since: 24 Oct 2014 Location: Houten Posts: 513
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a defender from 1984 pretending to be a puma with a touch of Range Rover |
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25th Mar 2018 12:42pm |
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| v8bobber Member Since: 26 Aug 2012 Location: pembrokeshire Posts: 437
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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 |
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25th Mar 2018 3:48pm |
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