Question about 2001 Land Rover Discovery Series II

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51 plate td5 lacks power untill 2500 revs in each gear

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Try checking all the hoses first, make sure all clamps tight. The Discovery TD5 has an extra widget which the Defender does not have. It is called a wastegate modulator and is controlled by the ECU. Not to be confused with the actuator which sits on the turbo itself. The modulator allows smoother control of waste gate operation by the turbo, a Garrett GT2052, giving additional power when required, etc. They are know to cause issues, have a look at www.discovery2.co.uk for repair. Part easily bought from EBay, etc.

Posted on Apr 05, 2017

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  • 42 Answers

Maybe a service or possible turbo problems

Posted on Jan 20, 2013

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Posted on Jan 02, 2017

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SOURCE: landrover discovery td5 2002 auto

need to replace the fuel regulater, located in engine bay.

Posted on Oct 23, 2008

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SOURCE: 2000 Discover TD5 Auto harsh vibration under power at 2000 -2500

The "lift off and it goes away" is the clue I feel. This eliminates engine out of balance issues and points squarely to fueling issues. I would say try a compression test (always a good first start before you try much else) but with plenty of power and no vibration except in the range, probably not a compression issue. So, what's left? Fuel or air is the answer. Check air inlet path is from air filter to turbo and (more importantly) from turbo to intake manifold. Check wastegate on turbo is OK - disconnect the wastegate (it's bolted on to the turbo) hose, then **** on the wastegate hose, you should feel resistance. If not wastegate aneroid has perforated. At this point, I suggest taking it to a LR dealer and get them to pull all the engine codes. If all OK, next step is injectors. It's a common rail diesel and removal is a bit tricky, but if you pull them out, you will often be able to see a single injector with all the carbon deposits around it. If all injectors look the same, suggest that at this point you need to take them to a diesel specialist for testing and calibrating. This process usually cures 70% of diesel misfire problems. The other 30% really requires specialist knowledge of your vehicle's engine.

Posted on Jul 31, 2009

iambanshee74
  • 3489 Answers

SOURCE: lack of power on discovery

is the check engine light on? if not i would have the fuel filter checked. also have the air filter checked at the same time. find a trusted technician in your area who is well versed on english and german vehicles. dont get taken just because of the badge on the front of your car.

Posted on Nov 08, 2009

  • 149 Answers

SOURCE: landrover td5 54 plate gear problem local

Have you checked the oil recently? I'd suggest changing it fully rather than topping up, and checking for any signs of metal in the oil (the drain plug should be magnetic, but running the oil into a plastic tub then sticking a magnet in to the oil and waving that round should find any not on the plug. Lots of Metal = Bad.

Posted on Feb 27, 2010

ftw1952
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SOURCE: my 51 plate freelander 1800 petrol seems to lack

Download this link and find your Service manual for your vehicle. It will serve you well and to keep for future reference

http://ezinearticles.com/?Find-the-Free-Auto-Repair-Manual-You-Need-Online&id=92717

Posted on May 02, 2010

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Lack of power on discovery


is the check engine light on? if not i would have the fuel filter checked. also have the air filter checked at the same time. find a trusted technician in your area who is well versed on english and german vehicles. dont get taken just because of the badge on the front of your car.

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