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110DCRoss

Member Since: 25 Jan 2018
Location: Lancashire
Posts: 2

2007 Defender 110 Puma 2.4 XS DCPU Java Black

Turbo Issue

I was driving along today and there was a sudden pop noise followed by a whoosh of air that sounded like a tyre popping but then I noticed a lack of power. Now when I accelerate above circa 1800rpm the turbo makes a load whine a bit like an electric motor and also whistles very loudly. Checked both hoses (2.4 TDCi) to and from the intercooler and no leaks. Had my mate ride on the wing with bonnet off and it’s definitely coming from in and around the turbo area. Any ideas?

11th Jul 2022 8:33pm

LandRoverAnorak

Member Since: 17 Jul 2011
Location: Surrey
Posts: 11324

Spilt intercoolers are depressingly common but so are split hoses that only manifest when under load. It's just a case of methodically checking every component of the intake system, unfortunately. Darren

110 USW BUILD THREAD - EXPEDITION TRAILER - 200tdi 90 BUILD THREAD - SANKEY TRAILER - IG@landroveranorak

"You came in that thing? You're braver than I thought!" - Princess Leia

11th Jul 2022 9:03pm

110DCRoss

Member Since: 25 Jan 2018
Location: Lancashire
Posts: 2

I’ve had both hoses off and inspected them and removed the air-con RAs to inspect the intercooler. The noise is definitely at the turbo.

11th Jul 2022 9:11pm

custom90

Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20612

Check the hose below the turbo it can rub on the steering column as they are surprisingly close.
You are talking under half inch close if you are lucky or closer.
Check the turbo actuator rod moves freely with it disconnected from the electronic actuator and a little light oil on the pivots.

What you have described sounds like a boost leak or overboost, though the latter if the actuator gets stuck on full boost will usually trigger limp mode and a DTC but won’t necessarily trigger the amber light on the dash.

Could be the IC instead as LRA mentioned, if you get stuck I’d get advice from a LR specialist as they see these things all the time.
Often they’ll take 2 mins to look at it and go, yep we’ve got another one of those and all done.
Failing that they’ll know the tricks of the trade and or have equipment to test these things instead.

If you have capability to read DTC’s then I’d definitely recommend you do and look the code up.
It might just well tell you the culprit, or give you clues possibly instead. Chillin In The Backwoods🇬🇧🇺🇸
⛽️🛢️⚙️🧰💪

11th Jul 2022 9:33pm

blackwolf

Member Since: 03 Nov 2009
Location: South West England
Posts: 17598

2007 Defender 110 Puma 2.4 DCPU Stornoway Grey

Check the gasket between the turbo and exhaust manifold (a common failure) and between the manifold and head (a slightly less common failure).

11th Jul 2022 9:54pm

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