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kenhills

Member Since: 06 Jan 2013
Location: Scotland
Posts: 4

2008 Defender 110 Puma 2.4 XS CSW Stornoway Grey

Puma Engine wiring Harness

On a recent trip to Morocco the engine went into limp home mode with a Turbor sensor A wiring circuit fault

. This turned out to be a broken wire on the plug attaching the engine wiring harness to the Turbo control box.

This is a real weak point as the wiring goes throughs a sharp angle into the plug and repeated shaking appears to be damaging all of the wires. I managed to get a bodge done but am now looking for a new wiring harness for the engine.

Does anyone know the part no for this harness? Ken

29th Apr 2019 9:19am

Tdi4

Member Since: 24 Oct 2014
Location: Houten
Posts: 513

2008 Defender 110 Puma 2.4 CSW Stornoway Grey

Yes this is a known problem and there is a service bulletin for. You don’t need the complete loom there is a repair kit for this problem. If nobody beats me to it

i’ll try to find the bulletin.

And if you wondered, Yes i had the same problem

a defender from 1984 pretending to be a puma with a touch of Range Rover

29th Apr 2019 9:25am

Tdi4

Member Since: 24 Oct 2014
Location: Houten
Posts: 513

The service bulletin is: LTB00254/2010

And the replacement/fix: Causal Part: LR007352
LTB00254 - Turbo Modulator Service Link Kit, service fix lead (LR020663) a defender from 1984 pretending to be a puma with a touch of Range Rover

29th Apr 2019 9:36am

kenhills

Member Since: 06 Jan 2013
Location: Scotland
Posts: 4

Thats really helpful - thanks V Much

Ken

29th Apr 2019 9:41am

Tdi4

Member Since: 24 Oct 2014
Location: Houten
Posts: 513

You're very welcome. Good luck with the repair. a defender from 1984 pretending to be a puma with a touch of Range Rover

29th Apr 2019 10:44am

blackwolf

Member Since: 03 Nov 2009
Location: South West England
Posts: 17427

2007 Defender 110 Puma 2.4 DCPU Stornoway Grey

Be aware also that generally the engine harness is not very satisfactory for vehicle used in anything remotely resembling arduous conditions. The harness is extremely prone to chafing at every point where it is in contact with the engine. The designer clearly though that the only protection the harness needs is convoluted sleeving, which is wholly inadequate

I suffered turbo problems which turned out to be caused by the wires to the actuator becoming completely severed due to chafing at the point where the harness passes the top front of the engine. Although an easy repair, it was sobering to see that the main feed from the alternator to the battery was similarly chafed, to the point where bare conductors were visible. I have absolutely no idea how it is that this didn't cause a major fire (I think that I spotted it just in time). This connection between the battery and the alternator is not fused at either end, so would cause a dead short to ground of both the battery and the alternator output if the engine is running. It doesn't really bear thinking about and can have only one result.

If my vehicle is representative of the quality of TDCi Defenders in general, it is wonder that spontaneous combustion isn't a widespread occurrence.

I strongly recommend that you check the harness throughout its length.

29th Apr 2019 10:56am

macfrank

Member Since: 05 Nov 2015
Location: somewhere in the north
Posts: 1081

2015 Defender 110 Puma 2.2 SW Keswick Green

8-( I'll check that.

Quote:
This connection between the battery and the alternator is not fused

From at least MY2012 there is an unfused cable from the alternator to the starter motor (from there it continues to the battery via 500A fuse). Is that one prone to chafing?

29th Apr 2019 6:09pm

blackwolf

Member Since: 03 Nov 2009
Location: South West England
Posts: 17427

Probably, it does no harm to check.

29th Apr 2019 9:14pm

HardCharger

Member Since: 03 Mar 2013
Location: Manila
Posts: 740

2011 Defender 110 Puma 2.4 SW Stornoway Grey

One of the recommended work stated by my mechanic after my Defender got dunked is to replace all the wiring harnesses as the dunking will have caused corrosion and will eventually give me gremlins.

Anyone know where I can get new ones that won't require me to sell organs or maybe someone who can make better harnesses from scratch?

30th Apr 2019 1:00am

Eduardo

Member Since: 28 Aug 2008
Location: Región Metropolitana
Posts: 2110

2007 Defender 110 Puma 2.4 SW Stornoway Grey

Defender.net is a huge source of information!

Probably I have the same fault now.
Near randomly lack of turbo, rough driving and high fuel consumption.

Engine Harness looks quite worn in the area were the cables passes the engine, so probably is the fault.

So I will check during weekend to see if that solves the issue.

Cheers and thanks! Eduardo

MY 2007 110 SW PUMA 2.4: Big Fog of 64'
MY 1994 Jayco 1207 Folding camper: "El Tremendo"

Click image to enlarge

20th Jun 2019 4:23pm

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