steamraiser2
Member Since: 27 Mar 2010
Location: Lytchett Matravers
Posts: 141
  
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My TDV6 disco has started surging. The tacho goes up and down by about 200 rpm when cruising and there seems to be a loss of power and increased fuel consumption. Starts fine and there is no smoke knocks or rattles. No warning lights, all very strange! Any ideas?
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 22nd Jun 2012 2:48 pm |
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Gareth
Site Moderator
Member Since: 07 Dec 2004
Location: Bramhall
Posts: 26776
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Transmission oil flush, otherwise known as a 'double flush' should cure it. However, check obvious things like the rubber pipes either side of the intercooler, might not be split, but could be restricted internally.
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| 22nd Jun 2012 2:50 pm |
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Rushjob
Member Since: 08 Nov 2011
Location: Lincs
Posts: 137
 
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Torque converter? A common mistake made when trying to come up with a totally foolproof design is to completely underestimate the innate ingenuity of fools. :doh:
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| 22nd Jun 2012 2:50 pm |
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character
Member Since: 31 Dec 2007
Location: wiltshire
Posts: 5781
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injectors.......  
just for forum balance 
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| 23rd Jun 2012 3:33 pm |
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euangibson
Member Since: 24 Dec 2010
Location: Borders
Posts: 11027
 
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Sounds like a mass air filter issue...... "Better to remain silent and be thought a fool,than to speak out and remove all doubt" ?.....what rubbish...
Locking rear E-diff
RLD spare wheel protector & sump guard
Extended roof rails
Series 111 mudflaps
Black side tubes,grill and vents
Timed climate remote
Hids4u interior lights
D4 Firenze my2012 HSE
D3 Java 2005 SE manual (sold,sadly,thanks for the memories)
1966 '88 Series 2a....still starts in the morning better than I do...
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| 23rd Jun 2012 4:24 pm |
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character
Member Since: 31 Dec 2007
Location: wiltshire
Posts: 5781
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sounds like a plug in at the dealers to read the fault codes....
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| 23rd Jun 2012 5:55 pm |
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steamraiser2
Member Since: 27 Mar 2010
Location: Lytchett Matravers
Posts: 141
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So..with transmission flush in mind I dared ask the local independant what oil he uses. He scratched his head when I suggested MillerMatic ATF DM and suggested it wasn't the right thing. I contacted Miller who says that it is fine for my Disco. I was then advised by a friend who is a former Landy independant that only the Shell M1375.4 will do.
So what is the current wisdom regarding a suitable ATF bearing in mind the difficulties in getting the Shell product? I note that several members have changed their oils so someone must have a heads up on an alternative!
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| 28th Jun 2012 8:48 pm |
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character
Member Since: 31 Dec 2007
Location: wiltshire
Posts: 5781
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shell, dealer supply only my friend, from what I remember 
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| 28th Jun 2012 9:54 pm |
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Barn1e
D3 Decade
Member Since: 28 Aug 2006
Location: Mid-sussex
Posts: 2021
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How many miles has D3 done. Anywhere approaching 90k and it may need the transmission fluid changed. But you may also find other symptoms such as a sense of miss firing under load at 30-40 mph. That would add more weight to the transmission fluid issue IMHO. Double flush is one option, but so is Mega-flush, do a search on here for details. Worked for me. 2005, TDV6 S, Auto, 190k miles, owned from new, V8 Brake Upgrade, Nancom Evo, RLD protector, BAS EGR blanking & Remap, separate ATF cooler, changing all the fluids ahead of time.
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| 28th Jun 2012 10:16 pm |
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steamraiser2
Member Since: 27 Mar 2010
Location: Lytchett Matravers
Posts: 141
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I have just received an email from Smith & Allan regarding the Shell M1375.4 ATF for my gearbox. Sadly it is no longer available  Is that not made any more or just not available for you Landy types any more I wonder? Grr. Looking increasingly like Millermatic ATF DM is the only available option then 
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| 29th Jun 2012 2:42 pm |
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steamraiser2
Member Since: 27 Mar 2010
Location: Lytchett Matravers
Posts: 141
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Barn1e. My Disco has now done 120k, a lot of it long haul towing. Mostly long distance, my average daily commute is a 160 mile round trip. The last diagnostic check showed no engine problems and it is getting checked again next week whilst in dock for a couple of non related maintenance tasks. The surging was occuring before the last diagnostic check so the garage guy is also intrigued as to the cause.
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| 29th Jun 2012 2:52 pm |
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Barn1e
D3 Decade
Member Since: 28 Aug 2006
Location: Mid-sussex
Posts: 2021
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I had no engine fault warnings that I am aware of whilst I had the misfiring sensation that was cured by he megaflush. But now I have a BAS fault reader I will have a different perspective on faults 2005, TDV6 S, Auto, 190k miles, owned from new, V8 Brake Upgrade, Nancom Evo, RLD protector, BAS EGR blanking & Remap, separate ATF cooler, changing all the fluids ahead of time.
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| 30th Jun 2012 4:37 pm |
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Fredrico
Member Since: 23 Jun 2011
Location: Pretoria
Posts: 11
 
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steamraiser2 wrote:I have just received an email from Smith & Allan regarding the Shell M1375.4 ATF for my gearbox. Sadly it is no longer available Is that not made any more or just not available for you Landy types any more I wonder? Grr. Looking increasingly like Millermatic ATF DM is the only available option then
Use ZF Lifeguard 6 or 8 instead. It is a ZF gearbox afterall, also much cheaper. 8)
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| 1st Jul 2012 3:06 pm |
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steamraiser2
Member Since: 27 Mar 2010
Location: Lytchett Matravers
Posts: 141
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Disco 3 went in for maintenance and new cam belts. A quick fault code check found nothing untoward again. They were still not keen on the gearbox flush proposal so I decided to do a gearbox oil change myself as per Filo's excellent thread. In the end I got some Ravenol online from Ribble Valley 4x4 which arrived in under 24hrs which is absolutelly first rate service.
I got less than 4 litres out via the oil cooler hose and another litre and a half from the pan drain plug. Yuk! very black and smelly. The refill was dead easy and I was back on the road within an hour. After a fifteen mile test run I repeated the Filo procedure and got five litres out via the cooler hose. Still dirty but far cleaner than before. Again an easy refill.
Th D3 is now judder free amd is not surging or hestitant. The taco is rock steady. The transmission noise seems a little louder than before but perhaps I'm super sensitive at the moment. I have a 1000 mile week ahead all dragging 2.5 tons so we will see how things pan out.
Thanks for everyones help and guidance. much appreciated! 
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| 8th Jul 2012 2:18 pm |
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