My Car is suffering from dropping into limp mode randomly when accelerating hard

Its in the garage at the moment and they are struggling to find the fault having already spent money to get the high pressure pump and in tank pump changed

Fuel lines have been checked ecu check injectors and various other things so far

Its still throwing up a fuel deviation fault code

Has anyone ever had this issue as so far my bill must be in excess of £3000

Any help appreciated as its a real mystery fault and at the moment range rover technical are getting involved to try and locate it

Its been in the garage a week already so I really need my car back

Have they changed the fuel filter there's been a few dodgy ones about..

Flack

Mine did exactly the same a couple of months ago, ended up being the fuel filter, it still took them nearly a week though to find it. I would say this is definatley what is wrong with yours.
Hope you get it sorted.  Current Volvo XC90 R Design T8
Gone 2010 TDV8. Stornoway Grey
Gone VW R50, AUDI S8, ML320 Sport, FFRR V8
Stolen 2007 TDV8.

Yep fuel filter changed twice so far

Had the wiring out and checked it all as well

Range Rover have said that this fault is a total nightmare GREAT

Have they checked the turbo actuator linkage to make sure that is free and not seizing up..

Flack

Check the pressure sensor on the fuel rail mine did the same turned out to be a faulty sensor

Ahhh thanks will suggest those two as well and have them checked

Hi .... I'd be very interested in the outcome of this as my 07 TDV6 is doing much the same (see recent post in Technical issues titled Faults at Speed) so far they've done injectors and filter but still not sorted, my biggest worry is that when the injectors were done they didn't do the filter so they could be dirty again !
Let me know how you fair
Cheers

Sounds like a very similar issue, I have had both fuel pumps replaced so far, fuel filter, injectors checked and they are fine, ecu checked, electricals checked and still no fault found.

I have the range rover electrician down today to hook up there own laptop and software to my car and to test drive it to create the fault and analyse the data.

Its driving me crazy at the moment, as well as having a huge bill to come for basically nothing at the moment.

I think this will unfortunately be my first and last RRS.

I feel your pain ££££££££ , Mine has been in 3 times with this now and were none the wiser ! ... Add to that for the NCT (MOT in Ireland) I had to buy 2 tyres , then it failed on a suspension imbalance so I had to buy 2 rear suspension units which set me back €1000 fitted and now this fuel fault .... If that's what it is ? Like yourself my patience and wallet are getting thin !

Ok a further update if anyone has any clues, it seems after further tests and diags by a top range rover electronics guru, the fuel issue seems to be happening only when the car is under load.

The car is fine on a ramp running but when driving under normal conditions the fuel pressure seems to drop.

Anyone any ideas?

Have they checked the vent is clear for the fuel tank so it can breath and not cause a vacuum while your under load.


Flack

Ah, could be, will see if that has been checked also and let you know the results.

easy:

open the tank cap and test it