Any codes Gavin ?, blood letting not necessary
The background
Last weekend I finally ordered and installed 3 GAPTool updates for my 2.7L, namely Terrain Response, Auto Trans and Transfer Case as suggested by Tombie many months ago. I had one uploading issue with the Transfer Case which Patrick from GAPTool quickly resolved for me.
I've also posted before about a partial auto trans limp mode that had occurred now and again whilst towing my 3.5T block of flats when the ATF got a bit warm and there was some heavier pulling involved.
However this weekend we went to Kalbarri (600 km each way), with no towing and about 100 km from home on the return trip, whilst travelling through a construction zone at 50 kmph, I had my first real limp mode experience. I stopped and restarted, took off again and then had several re-occurrences, finally deciding to clear the faults and drive on with feathering the accelerator. I had previously done a few full accelerator overtaking efforts during the day, and wondered if that might have been a contributing factor, especially as after taking the feathering approach I made it safely home without further incident.
Generally travelled at speed of 110 kmph, ambient temp up to 30, EGT hovering around 400, coolant around 90, engine oil temp around 96, ATF around 84 and TC around 50, so pretty normal.
The trans has now done 275K km, apparently mainly highway running before my recent 30K km towing efforts, but was earlier rebuilt by the local dealer whilst still with the PO at about 160K km under warranty (no, don't know any details). I can't see how my recent 500Nm remap, or i-Drive accelerator fitting could have any impact.
I'm now wondering if I'm soon to be up for a replacement transmission, or maybe "just" a valve body rebuild, or whether I should just slit my wrists and be done with it?
I'll hang fire for a few days for any advice from here, then most likely contact the ever reliable Cameron at Auto Trans R Us in Balcatta!!!
Any suggestions/relevant comments from the wise?
MY16 D4 TDV6 - with a little Cambo magic for towing "The Brick"
MY95 RRC LSE Vogue Softdash "Bessie" (turning circle comparable to QE II) with MY99 TD5 and 4HP24 transplants. Back home Nov 22 after a magic overhaul by Chivalry
SADLY SOLD MY04 D2a TD5 auto Classic and MY10 D4 2.7 both with lots of goodies
Any codes Gavin ?, blood letting not necessary
Hey Gav,
Mate, I feel yeah pain. Would love to take ya out for a beer to get you through it!
Any codes would be good as always.
It actually sounds like my issue and something a number of us have had over the years. Going into limp mode and shows "Transmission Fault". However, it's often not. For a good chunk of us it's fuel system related. ie. Low pressure fuel pump (LPFP), high pressure fuel pump (HPFP), fuel rail pressure sensor or a combination of them.
For me, the fuel rail pressure sensor was diagnosed as the fault and, due to the fact I'm still learning about this fancy D4 thing, the indy replaced the rail as "you can't buy the sensor separately". Should have trusted my gut there, because that's complete rubbish. LR advise not to change the sensor separately (likely due to liability over anything else) and don't sell it themselves. However, it is readily available elsewhere.
I had the disco fault one more a couple of weeks after that (not entirely sure why), but otherwise it's been good for months [knocking wood so hard my knuckles are bleeding!].
I'll be honest, I'm not sure the problem is gone, just hiding. Though that's partially due to the fact that I've got done issues trusting the particular indy at the moment...
Most people seem to find that it's their HPFP though unfortunately from my reading. I think the consensus is to change sensor, then LPFP, then HPFP. Starting cheap and moving up.
Noting you've done the tune, it's possible you've now brought forward a slowly failing fuel item now that you are demanding a little more from her. It seems this issue can just every so slowly get worse and some seem to put up with it for months or even years.
I've learnt a whole lot about this vehicle and engine of late. Not sure I particularly wanted to. My D1's are enough work. Hahaha
Good luck bud and let us know how you go.
-------------------------
Chris Phillips
Offroader: 1996 Discovery 300TDI (The Green Donkey)
Missus: 2010 Discovery 4 TDV6 (Fancy thing)
Just 'cause: 1999 Discovery SE 3.9L V8 (Makes fun noises, sometimes...)
Spares: 1998 Discovery 300TDI (Only vehicle actually in the garage..........)
Run around: 2001 Nissan Pulsar ST 1.8L (Soul crusher)
"Generally travelled at speed of 110 kmph," Now now Gavin. If you were travelling at this speed you were breaking the law as it applies in WA. 100 max for ALL towing vehicles. Plus of course the poor vehicle was working hard to tow that thing you have behind it.
No doubt the 2.7 or 3ltr have the power to do it but it must put a strain on the transmission especially on longish distances and in hot weather. Curb that right foot and don't carry so much grog and she'll be right.
AlanH.
Hahaha, leave the poor fella alone... He owns an LR, sometimes ya just need a drink... Or 10!
As for towing, he did say he wasn't towing when this happened.
-------------------------
Chris Phillips
Offroader: 1996 Discovery 300TDI (The Green Donkey)
Missus: 2010 Discovery 4 TDV6 (Fancy thing)
Just 'cause: 1999 Discovery SE 3.9L V8 (Makes fun noises, sometimes...)
Spares: 1998 Discovery 300TDI (Only vehicle actually in the garage..........)
Run around: 2001 Nissan Pulsar ST 1.8L (Soul crusher)
Gav, I have had the red triangle previously when or shortly after overtaking using a heavy right foot. Mine was injector related at the time. A side trip to Whyatts LR in Geraldton sorted that out.
At your mileage (the car, not you....🤣 id be thinking HPFP or valve body rebuild... a flow test on the injectors would also not go astray as a first step.
Codes. You just bought an IID tool so what are the codes!! Read the codes to avoid having to get out the crystal ball.
2010 TDV6 3.0L Discovery 4 HSE
2007 Audi RS4 (B7)
MY16 D4 TDV6 - with a little Cambo magic for towing "The Brick"
MY95 RRC LSE Vogue Softdash "Bessie" (turning circle comparable to QE II) with MY99 TD5 and 4HP24 transplants. Back home Nov 22 after a magic overhaul by Chivalry
SADLY SOLD MY04 D2a TD5 auto Classic and MY10 D4 2.7 both with lots of goodies
MY16 D4 TDV6 - with a little Cambo magic for towing "The Brick"
MY95 RRC LSE Vogue Softdash "Bessie" (turning circle comparable to QE II) with MY99 TD5 and 4HP24 transplants. Back home Nov 22 after a magic overhaul by Chivalry
SADLY SOLD MY04 D2a TD5 auto Classic and MY10 D4 2.7 both with lots of goodies
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