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Mali



Member Since: 25 May 2024
Location: Haverfordwest
Posts: 8

Wales 2003 Range Rover SE Td6 Giverny Green
TD6 goes ok and then goes sluggish

It’s a pain to start, plenty of turning over before finally firing into life. It seems all good until you get it into 3rd, then it sort of goes into limp mode, really gutless and a load of diesel knock on idle.
I have replaced the MAF as when I looked the case was cracked and it was unplugged!
Anyway, that made no difference apart from it is a lot slower from the off when plugged in.
When not plugged in it is fine up to 3rd, then goes all soft and limp. Also, smokes well when not plugged in as expected so I think there is nothing up with the MAF.
I noticed the small vacuum pipe was split (on the os inner wing) so sorted that out, nothing happened but at least that’s crossed that off.
Before I rush off and buy a secondary fuel pump and fit that, any ideas?
Only codes I have is BCM stuck in transportation mode and hvac rear vent stepper inop.
Cheers,
Mart. Current wallet destroyers:
2002 DISCO TD5
2003 TD6 SE
2010 TDV8 VOGUE

Post #695593 5th Jul 2024 12:57pm
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Ian Donkin



Member Since: 17 Aug 2010
Location: A Yorkshireman in Surrey
Posts: 107

2004 Range Rover Vogue 4.4 V8 Zambezi Silver

I experienced the same (or certainly similar) symptoms in my e39 530d - I was convinced that it needed glow plugs. As they share the same basic architecture, this should be relevant.

Then one day it just stopped outside my local garage (when low on fuel); I put in a gallon can, it restarted, I got home perfectly and then it died again 300m from home (quite a push to get it back into its parking spot).

It was the in tank pump in my case - I fitted a Marelli aftermarket item from eBay for about £46 and after that it not only started, but when winter returned, the previous poor starting / glow plug-like symptoms were also no longer present.

The original pump sounded okay by the way, only under load it couldn't pump anything!

[edit] I actually bought both fuel supply pumps, but when I listened to the gurgling in the tank when ignition on, I deduced this was the right place to start (and it was). 2011 Range Rover Vogue SE 4.4 TDv8

Post #695601 5th Jul 2024 2:00pm
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mjdronfield



Member Since: 04 Nov 2011
Location: Derbyshire
Posts: 7790

United Kingdom 2011 Range Rover Vogue SE TDV8 Buckingham Blue

When my TD6 took a long time starting I ended up having new injectors. Garage said it will start fine if one is iffy, but not 2…..

What was the loom thing to the injectors that Wheeler Dealers said was common on TD6? Can’t remember as nearly a decade since I had mine.

When my fuel pump under the sill failed, it just wouldn’t start at all.

Never had any loss of power once driving though…..

Thumbs Up 2011 Range Rover Vogue SE 4.4 TDV8

Previous cars :
2003 Range Rover Vogue TD6
1999 Discovery Td5 ES
1995 BMW M5 3.8 6 speed
1992 Range Rover 3.9 Efi Vogue
1992 BMW M5 3.8
1988 BMW 735i SE
1989 Ford Sierra XR4x4 2.9i
1981 Ford Fiesta Supersport

Post #695606 5th Jul 2024 3:31pm
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Mali



Member Since: 25 May 2024
Location: Haverfordwest
Posts: 8

Wales 2003 Range Rover SE Td6 Giverny Green

Cheers for the replies, I finally pulled my finger out and did some more in depth checks and it was indeed the in tank fuel pump that’s causing the issues.
Thanks again for the input, always appreciated. Thumbs Up Current wallet destroyers:
2002 DISCO TD5
2003 TD6 SE
2010 TDV8 VOGUE

Post #695657 6th Jul 2024 2:55pm
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Ian Donkin



Member Since: 17 Aug 2010
Location: A Yorkshireman in Surrey
Posts: 107

2004 Range Rover Vogue 4.4 V8 Zambezi Silver

Glad that you've got it resolved, or at least are on the way there! 2011 Range Rover Vogue SE 4.4 TDv8

Post #695750 8th Jul 2024 10:32am
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