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31st January 2015, 03:03 PM
#1
Wissling Noise
Can anyone help me with this . I have a whistling noise coming from under the bonnet mainly just when I start of up the road after put the foot down A little . have checked the belts put new belts on its like air whistling out of something but after a little while it stops . thank you for your time and any help you may give . PS. Its a Nissan Patrol wagon 2001 ZD 30 TDi
Email: rod1169@hotmail.com
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31st January 2015 03:03 PM
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31st January 2015, 03:31 PM
#2
Patrol God
look at your manifold gasket and have the manifold plainned
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31st January 2015, 03:34 PM
#3
Patrol Guru
I can hear the turbo whistle on mine, has the noise always been there? of is it a new noise?
2010 TB4.8, 5 speed auto TI Wagon, Beaudesert ceramic coated Extractors and 2 1/2 inch exhaust, 3inch lift, BP-51 shocks, Black hawk radius arms and drop boxes, Road Runner Offroad billet alloy draglink, Boss air bags, 295/70/17 KM3s, Redarc Gauges, GME XRS UHF, Autometre fuel gauge, Alpine head unit with offroad maps, Carbon winch, Opposite lock bull bar, Light Force Strikers, Safari Snorkel, Duel long range tanks, work in progress.
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31st January 2015, 03:49 PM
#4
Legendary
Symptoms do sound like a leaky Exhaust Manifold or cracked/broken EGR Pipe
GU PATROL 2011 Ti, with goodies...
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31st January 2015, 04:17 PM
#5
Patrol God
X 2 with Happy check the egr pipe for cracks if thats ok,
check the exhaust manifold they are known to warping
04 ST 3lt auto, not enough Mods to keep me happy, but getting there
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31st January 2015, 04:34 PM
#6
Patrol God
yes or could be the intercooler or piping split which is fairly common, check intercooler hoses are tight and run you finger around the seams on the intercooler to check for oil or a dirty looking spot on the welds to check it hasnt split at the seam or weld
2003 gu3 td42tdi sold 😞 bloody gvm towing crap. Bt50 3500kg gvm.
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31st January 2015, 04:48 PM
#7
Legendary
Any performance changes or just the noise?
2005 GU IV ST 3.0. Snorkel. Roof rack. Awning. Spots. Welded I/C. Dual batteries & VSR. UHF. Barn door hinge extension. Roof top spot lights. Rear drawers. 2" lift. NADS. EGT and boost gauges. Trans temp and water temp gauges. Provent 200 catch can. Rear ladder
And crawling on the planet's face, some insects called the human race. Lost in time. And lost in space... and meaning.
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31st January 2015, 05:05 PM
#8
Patrol God
As Stropp says if the IC is oily chances are its FOOBAR and needs replacing with a tigged one.
You could put an EGR blocking plate in to see if its that, but sounds like you need to NADS your Patrol
04 ST 3lt auto, not enough Mods to keep me happy, but getting there
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31st January 2015, 06:02 PM
#9
Administrator
Originally Posted by
Stropp
yes or could be the intercooler or piping split which is fairly common, check intercooler hoses are tight and run you finger around the seams on the intercooler to check for oil or a dirty looking spot on the welds to check it hasnt split at the seam or weld
Same thing happened to our work car zd30 2000. Small split in the ic, could hear it on start up but went away shortly afterwards when it heated up and closed the split enough for the noise to stop.
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31st January 2015, 08:57 PM
#10
Patrol Guru
To check if its the exhaust gasket (warped manifold) place a rag over the end of the exhaust pipe while it is idling. Don't fully block it but get it to build up some back pressure and if the whistle sounds then you know where the problem lies. Otherwise it could be intercooler or hoses, as others have suggested.
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