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Home > Puma (Tdci) > Perfectly running 2.4Tcdi - now Nordic trip in jeopardy!
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 17450

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
Have you actually checked for stored DTCs? If not then it would definitely be worth doing as a next step. Also as I suggested above, thoroughly check the turbo to intercooler hose, you should be able to feel a split if there is one, but if need be remove the hose to inspect it.
Post #363143 8th Oct 2014 5:59pm
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90_ken



Member Since: 03 Oct 2014
Location: St albans
Posts: 8

United Kingdom 2007 Defender 90 Puma 2.4 XS CSW Orkney Grey
Many thanks for the explanation and advice blackwolf.

Agree that some fuel will remain after drain, if that much then I should drop and clean as per your advice.

He used the bleed valve on the fuel line.

Have new intercooler hoses and will replace...as you suggest best way to check is to remove, so will take opportunity to replace, as I don't know the history with them. Will check on refitting that no rubbing on steering.

Didn't know about VCV. Thanks for the detail, no erratic idle or poor pick up. But will look to replace after eliminating the hoses and fuel filter.

You mention DTC's logs, how do I see these?

Will remove the fuel filter and check a sample of fuel from the filter and make final decision on tank.

Thanks for your help, will do the work over weekend and update.
Post #363575 10th Oct 2014 10:58am
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 17450

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
You're welcome! I spent many hours sorting out a fuel related issue not long ago (there's a thread somewhere on here "contaminated fuel") and I learned a lot about the 2.4 Puma fuel system!

To read DTCs you will need a diagnostic tool such as a Nanocom (well worth getting one, especially if you are planning an expedition).

I wouldn't at this stage drop the tank unless you find that the fuel appears contaminated. It might be worth doing at some stage however since it is the only way you'll really know that the tank is clean. On the early Puma 110s there was a design flaw which put the outlet of the tank breather in the NSR wheel arch where it was bombarded with road dirt and water, and inevitably dirt and water entered the tank, ultimately causing the "diesel bug" to grow (this is what initially caused my problems). I don't know where the breather is on a 90 but it would be worth checking and re-routing if necessary.

The VCV is a well-known fault and I now keep a spare. If I was travelling anywhere vaguely wilderness I would definitely carry a spare.
Post #363576 10th Oct 2014 11:14am
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90_ken



Member Since: 03 Oct 2014
Location: St albans
Posts: 8

United Kingdom 2007 Defender 90 Puma 2.4 XS CSW Orkney Grey
Thanks blackwolf.

Landy back running as before. Issue was indeed a 1" tear on inlet hose. Replaced both intercooler hoses with silicon ones and now no whooshing or limp mode.

Changed fuel filter and checked old filter diesel, no water (as far as I could tell) or any sludge. In fact just as clean as the priming diesel I put in the new filter.

Got round to fitting snorkel too, so running well.

Thanks for advice. Will get VCV to take as spare on trip.

Ken & Sanna
Post #364533 14th Oct 2014 10:07pm
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LR90XS2011



Member Since: 05 Apr 2011
Location: bickenhill
Posts: 3645

United Kingdom 2011 Defender 90 Puma 2.4 XS CSW Galway Green
glad you got it sorted DEFENDER 90 TDCI XS,

I hope everyone is well and your land rovers make you happy
Post #364551 15th Oct 2014 4:49am
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 17450

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
Remember that if you replace the VCV you will need to carry out a fuel pump recalibration operation with a diagnostic system for the engine to run optimally afterwards. It will probably run, but not as well as it should.

I cannot remember if Nanocom can do this, BBS Faultmate certainly can.

It is well worth taking a diagnostic system of some kind with you if you go on a wilderness trip.

Glad you got the "whoosh" sorted anyway! Thumbs Up
Post #364579 15th Oct 2014 7:54am
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