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Home > Technical (L322) > L322 Diesel Heater - Fuel Pump Location?!

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doja

Member Since: 12 Dec 2022
Location: Southwest
Posts: 1

L322 Diesel Heater - Fuel Pump Location?!

Hey all,

I'm trying to troubleshoot a non-starting diesel heater on a recently acquired 05/06 L322. Before I go taking too much apart, I was hoping someone could tell me the location of the diesel fuel pump which supplies fuel to the diesel heater.

Is it attached to or located close to the heater unit itself in the front of the vehicle or is it somewhere else in the vehicle nearer the fuel tank?

Diagnostics is telling me I have a short to ground relating to the diesel heater.

The heater appears to attempt a startup sequence for 2 mins and then shuts down.

I can hear it's fan running during this time but cant hear a clicking/tapping noise which i'd expect the fuel pump to make (but maybe i'm listening in the wrong place ?!)

My guess at this stage is a fault with the water pump, diesel fuel pump or glow plug , any tips or suggestions welcomed. Is there a Westabo maintenance manual available for download somewhere?

12th Dec 2022 11:03am

Dtech

Member Since: 29 Nov 2014
Location: Yorkshire Dales
Posts: 51

2011 Range Rover Vogue 4.4 V8 Santorini Black

As I recall,it’s located on the rear subframe above the diff.

12th Dec 2022 11:37am

JMC

Member Since: 01 Feb 2009
Location: Aberdeen-Angus
Posts: 755

2012 Range Rover Westminster TDV8 Orkney Grey

Listen behind the near-side rear (back left) wheel. Heard mine yesterday pumping away there! The older I get, the more I realise that people confuse wrinkles for wisdom

12th Dec 2022 2:22pm

mjdronfield

Member Since: 04 Nov 2011
Location: Derbyshire
Posts: 7801

2011 Range Rover Vogue SE TDV8 Buckingham Blue

Click image to enlarge

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

12th Dec 2022 3:09pm

garyRR

Member Since: 13 Mar 2021
Location: Hampshire
Posts: 1468

Here's clearer photos

Click image to enlarge

2015 Range Rover Autobiography 4.4 SDV8

12th Dec 2022 6:15pm

garyRR

Member Since: 13 Mar 2021
Location: Hampshire
Posts: 1468

Here's clearer photos

Click image to enlarge

Top photo is of an old corroded pump, and the previous owner had bypassed and bridged the fuel hoses (hose on the left is from the tank, hose on the right is to the FBH) due to pump issues.

Bottom two photos are of a new pump in place. You can see the rear diff in the corner of the photos, so look up to the offside of there with a torch and it's clear to see.

You can see the electrical plug in all photos.

To remove, spray and soak with WD40 several times and use a 6 point socket only on the bolt on the rubber holder. The job is easier with some extensions and an articulating ratchet (though not essential).

Once the bolt is removed, there's more space to unplug it and use hose clip pliers on the clips. You may opt to replace the clips with small jubilees, as they're the

type. Have some small bungs, tissue and a little container (and brake cleaner to clean up afterwards), as you will get a few drops of diesel. 2015 Range Rover Autobiography 4.4 SDV8

12th Dec 2022 6:20pm

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