terrano 3.0 turbo whistle

nuffy29 · 05-08-2014, 20:30

Hello there i have recently bought a terrano van 3.0 , And seen as it did not start great i have fitted some new heater plugs, not as easy as i thought , after taken the inter cooler of i then had other things to take of just to get to them, not sure what there were one of them stops the engine and i think other is for boost for the turbo i think, after fitting them and putting every thing where it was the it started grand but when i go down the road the turbo now has a whistle ?? I havce taken it back to bits 10 times and i can not see of hear where its coming from ??? Any one any ideas ? I also put a new exhorst on at the same time, do they always whistle ? or is my turbo about to die ??

solarman216 · 05-08-2014, 20:56

most likely you have a problem with the hoses/clips inter cooler to turbo/manifold, Rick

Bigbunny2007 · 05-08-2014, 21:10

Was it a new front down pipe?? Think other members have had issues with turbo noise when they have changed the down pipe.

Paff · 05-08-2014, 21:29

Money is on the exhaust...

rustic · 05-08-2014, 21:37

Quote:

Originally Posted by Bigbunny2007

Was it a new front down pipe?? Think other members have had issues with turbo noise when they have changed the down pipe.

Twas me..
Kwik fit changed it to another make... sorted.

AlexD333 · 05-08-2014, 23:32

Yup money on exhaust, can you test with old exhaust or too late?

nuffy29 · 05-08-2014, 23:50

Quote:

Originally Posted by AlexD333

Yup money on exhaust, can you test with old exhaust or too late?

Its to late now ??? It was not the down pipe just the other 3 bits after , the flexi pipe back over

Barrbeast · 06-08-2014, 12:45

How loud is the whistle bud as I hear a slight whistle from my 3.0, always have.

When I first got the Trol there was a whoosing sound during boost but that turned out to be a loose intercooler pipe - tightened up the clip and that was it.

AlexD333 · 06-08-2014, 13:08

Quote:

Originally Posted by Barrbeast

How loud is the whistle bud as I hear a slight whistle from my 3.0, always have.

When I first got the Trol there was a whoosing sound during boost but that turned out to be a loose intercooler pipe - tightened up the clip and that was it.

are they seated correctly?

Bigbunny2007 · 06-08-2014, 13:09

Thought it was you rustic.

Have they damaged the flexi when changing the rest of the exhaust? Worth a check. If that's now got a split in it that might explain the noise!!

Barrbeast · 06-08-2014, 13:52

Quote:

Originally Posted by AlexD333

are they seated correctly?

Worth checking although I reckon it would be hard to seat the intercooler pipes incorrectly

and if they're properly clipped on ie. not loose, then they shouldn't make a noise.

I've always taken a slight sound of turbo whistle to be normal on a turbo'ed engine (I quite like it

).

There's plenty pre-2000 6cyl turbo'ed tractors where the owners open the windows when working just so they can hear the whistle (a lot of them fit straight through exhausts so they hear a lot more too

)

05-08-2014, 20:30	#1
nuffy29 Junior Member Join Date: Jun 2014 Location: north yorkshire Vehicle: Nissan Terrano Posts: 10	terrano 3.0 turbo whistle Hello there i have recently bought a terrano van 3.0 , And seen as it did not start great i have fitted some new heater plugs, not as easy as i thought , after taken the inter cooler of i then had other things to take of just to get to them, not sure what there were one of them stops the engine and i think other is for boost for the turbo i think, after fitting them and putting every thing where it was the it started grand but when i go down the road the turbo now has a whistle ?? I havce taken it back to bits 10 times and i can not see of hear where its coming from ??? Any one any ideas ? I also put a new exhorst on at the same time, do they always whistle ? or is my turbo about to die ??

05-08-2014, 20:56	#2
solarman216 Off road maniac Join Date: Dec 2009 Location: Bexhill on Sea Vehicle: Y60 Patrol Me, 3 ltr Mrs Posts: 17,431	most likely you have a problem with the hoses/clips inter cooler to turbo/manifold, Rick __________________ Ex banger racer now off road maniac Lokka on the front with manual hubs Diff lock on rear 3 inch SS straight through exhaust Manly winch bumper with 13000 lb winch 10 spike ground anchor, with multiple straps and blocks Super strong body cills capped with scaffold pole 20% stronger springs all round aggressive off road tyres on wheels so just swap. Aim to get stuck and be completely self sufficient in extraction, love getting muddy, 2ft deep is good but rare.

05-08-2014, 21:10	#3
Bigbunny2007 Senior Member Join Date: Feb 2013 Location: Yorkshire Vehicle: T2 swb 2.7 tdi - Disco 3 Posts: 589	Was it a new front down pipe?? Think other members have had issues with turbo noise when they have changed the down pipe.

05-08-2014, 21:29	#4
Paff Senior Member Join Date: Apr 2014 Location: Just north of Ipswich, Suffolk Vehicle: Terrano II 2.7 SE+ Auto Posts: 1,094	Money is on the exhaust...

05-08-2014, 23:32	#6
AlexD333 Senior Member Join Date: Jan 2014 Location: Uk Vehicle: 2004 Terrano 2.7 TDI Posts: 7,847	Yup money on exhaust, can you test with old exhaust or too late?

06-08-2014, 12:45	#8
Barrbeast Senior Member Join Date: Mar 2013 Location: Dundee, Scotland Vehicle: 1990 4.2 SWB Safari Posts: 2,615	How loud is the whistle bud as I hear a slight whistle from my 3.0, always have. When I first got the Trol there was a whoosing sound during boost but that turned out to be a loose intercooler pipe - tightened up the clip and that was it.

06-08-2014, 13:09	#10
Bigbunny2007 Senior Member Join Date: Feb 2013 Location: Yorkshire Vehicle: T2 swb 2.7 tdi - Disco 3 Posts: 589	Thought it was you rustic. Have they damaged the flexi when changing the rest of the exhaust? Worth a check. If that's now got a split in it that might explain the noise!!