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Eduardo



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

Chile 2007 Defender 110 Puma 2.4 SW Stornoway Grey
Random issue with my Defender...
Hi there

From some time ago my Defender are experiencing a random issue that still I cannot locate Sad

Some times, randomnly, the engine lost power and is not possible to run over 60 KPH.
No engine ligth and not DTC code stored (using a normal scanner) and no strange sound or anything that guide me to the culprit.

If I stop the car and wait some time, star to working normal again.

Appears that the turbo refuse to work but I'm not sure (no special sound when the failure happens or when working OK)

I already check visually the wiring loom to see if have some wire broken.

Any Thoughts from where I can start?


Cheers! Eduardo

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

Click image to enlarge
Post #782674 22nd Jul 2019 10:35pm
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20339

United Kingdom 
Have you cleaned your MAF and MAP sensor, in particular the latter?
I would also check the turbo actuator is working correctly also as a few starting points.
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Post #782675 22nd Jul 2019 11:15pm
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hank



Member Since: 12 Sep 2016
Location: South Wales
Posts: 2296

Wales 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
Have a read of this https://www.defender2.net/forum/topic62985.html

And check actuator movement is free

 > 110 XS Double Cab
Post #782679 23rd Jul 2019 4:44am
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Big Harold



Member Since: 09 Jul 2018
Location: nsw
Posts: 71

Australia 2015 Defender 130 Puma 2.2 HCPU Alpine White
Mine derates when the temp gets over 110 deg C
Gauge on dash still shows normal temp but OBD2 plug in gauge tells different story.
Mark
Post #782701 23rd Jul 2019 9:51am
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Eduardo



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

Chile 2007 Defender 110 Puma 2.4 SW Stornoway Grey
Thanks to all!
Now the Defender is in the farm not with me).
So, as soon arrives I will check it.


Cheers! Eduardo

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

Click image to enlarge
Post #782884 24th Jul 2019 12:49pm
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Eduardo



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

Chile 2007 Defender 110 Puma 2.4 SW Stornoway Grey
Well

A pending DTC appeared: PO234 (Turbocharget overboost), so probably hank is right.
Anyway, I will ask to my wife if she can clean the MAF and the MAP sensors (not easy task)

Cheers

Update: the code dissapeared after run again the car at 100 kph... Eduardo

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

Click image to enlarge
Post #783151 25th Jul 2019 8:53pm
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Eduardo



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

Chile 2007 Defender 110 Puma 2.4 SW Stornoway Grey
Finally 2 issues Sad

a) Turbo actuator are not working properly.
According to my Indy is better to change the whole turbo. He had problems in the past to pair the turbo with a new actuator he
said that the actuator stroke of the spares offered are not the same than the turbo request.

b) The bracket bearing (where the viscous fan is sitting) have a lot of play and must be changed

In Chile both pieces available but at a cost that almost double the price of import from UK.

So...
Waiting the final quotation from Dan @ Duckworth to put the order

Cheer to all and thanks for the help Eduardo

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

Click image to enlarge
Post #787779 19th Aug 2019 8:10pm
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MMR1988



Member Since: 29 Oct 2016
Location: Chemnitz
Posts: 54

Germany 2008 Defender 110 Puma 2.4 SW Alaska White
Check the wire next to the connector of the turbo actuator. I had the same fault (Turbo overboost) and one of the wires were just broken just within the connector. Not directly visible, you need to slightly twitch each wire to get it visible.
Problem was, that the wire disconnected on road bumps and the engine runs only 3000 RPM with additional lower power with this fault. After the engine restart, the wire was connected again until I hit the next bump.

Best regards
Max
Post #788410 23rd Aug 2019 7:58pm
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