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tolley



Member Since: 07 Nov 2011
Location: gloucester
Posts: 1114

United Kingdom 2006 Defender 90 Td5 CSW Oslo Blue
td5 power down
lack of power when driven doesnt rev past 3000rpm anyone got any ideas ?
Post #788306 22nd Aug 2019 8:19pm
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grafty99



Member Since: 15 Aug 2012
Location: North Devon
Posts: 4784

United Kingdom 2002 Defender 90 Td5 HT Caledonian Blue
Could be anything really.

Start with air filter, pipework etc.

Then try turbo wastegate actuator for sticking

Then try unplugging the maf sensor and see if things improve

Thumbs Up 2002 90 Td5 Station Wagon
1990 Vogue SE
Triumph Tiger Explorer 1200
Td5 90 Thread http://www.defender2.net/forum/topic50767.html
Tdi 110 Thread https://www.defender2.net/forum/topic69562.html
RRC Thread http://www.defender2.net/forum/topic54492.html
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Post #788309 22nd Aug 2019 8:28pm
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tolley



Member Since: 07 Nov 2011
Location: gloucester
Posts: 1114

United Kingdom 2006 Defender 90 Td5 CSW Oslo Blue
many thanks .
Its a w reg , no smoke at all funny thing the brake pedal goes to the floor now , might not connected .
Post #788311 22nd Aug 2019 8:41pm
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mk1collector



Member Since: 17 Sep 2009
Location: West Yorkshire
Posts: 6769

England 2004 Defender 110 Td5 CSW Bonatti Grey
Unplug the maf and see if the power comes back Ray
My build thread
http://www.defender2.net/forum/topic17615.html
Post #788313 22nd Aug 2019 8:52pm
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bankz5152



Member Since: 02 Feb 2017
Location: South London/North Kent
Posts: 2057

2004 Defender 110 Td5 DCPU Epsom Green
Need to plug kn diagnostics really.

Could be the MAP sensor, MAF is a start though.

Sticky wastegate, boost leak, seized EGR.

The EGR still connected? Instagram @defender_ventures
Empire Tuning - Agent
Post #788316 22nd Aug 2019 9:00pm
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landy andy



Member Since: 15 Feb 2009
Location: Ware, Herts
Posts: 5413

2006 Defender 110 Td5 USW Zermatt Silver
Just thinking out loud.

Brakes aren’t stuck on are they? So can’t drive at full revs? Just trying to tie up with sudden brake failure?

Brake wise is fluid level ok? If not check pipe along rear axle.
Post #788317 22nd Aug 2019 9:02pm
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dorsetsmith



Member Since: 30 Oct 2011
Location: South West
Posts: 4554

tolley wrote:
many thanks .
Its a w reg , no smoke at all funny thing the brake pedal goes to the floor now , might not connected .


master cylinder failed or you flex brake pipe failed
Post #788319 22nd Aug 2019 9:11pm
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turnah



Member Since: 30 Sep 2018
Location: Lancashire
Posts: 40

United Kingdom 2005 Defender 90 Td5 HT Belize Green
I had a similar problem caused by a combination of gunked up MAP, duff MAF, bit of oil in red ecu plug and a fuel connection to the engine (can't remember the exact term) that needed replacing.

Every few months I need to clean the MAP to regain full power now.

Think most of this has been said but this was just my experience and helped by the good folks on here to identify.
Post #789585 30th Aug 2019 5:42pm
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derbywill



Member Since: 25 Mar 2010
Location: Derbyshire
Posts: 539

England 2005 Defender 90 Td5 XS CSW Java Black
Make sure the fuel pump is working, had a Discovery Td5 and the pump was not working but would run and give similar symptoms to you, not revving past 3k etc.

Cheers

Will 2005 90 XS
1954 86'' Series 1 tilt
Post #789632 30th Aug 2019 9:03pm
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TJH1985



Member Since: 22 Aug 2016
Location: Midlands
Posts: 238

United Kingdom 
Sounds exactly like when my fuel pump died. If you hit the tank a few times on mine it jumped back into life.

Does the fuel pump run when you first turn on the ignition?
Post #789659 30th Aug 2019 10:48pm
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turnah



Member Since: 30 Sep 2018
Location: Lancashire
Posts: 40

United Kingdom 2005 Defender 90 Td5 HT Belize Green
Fuel pump, that's the one I was after (above). Mine made the priming noise but for too long and varying degrees of loudness when it packed in.
Post #789660 30th Aug 2019 10:50pm
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roel



Member Since: 08 Aug 2009
Location: Lelystad
Posts: 2039

Netherlands 2003 Defender 90 Td5 PU Caledonian Blue
I had the same problem 2 weeks ago. Lack off power, not reving past 2700 orso. And yes it was the fuel pump.
I expected that the engine wouldn't run without the pump but is does. The new pump is a lot quieter. Twisted Evil So it probably was telling me it was dying only I didn't understand him. Roel

1984 90 2.5 na Diesel - RR V8 (1994-2001)
1997 Camel Trophy Discovery 300TDI (2001-2009)
2005 G4 Discovery III 4.4 V8 (2008-2018) It's gone but it still hurts.
2003 90 Td5 (2009-now)
Post #789792 31st Aug 2019 9:49pm
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