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Sandyt



Member Since: 07 Nov 2013
Location: Wraysbury Windsor
Posts: 2280
United Kingdom 2007 Range Rover Supercharged 4.2 SC V8 Buckingham Blue

Also you dont need to take the dash out to get at the blend motors just the glove box and the finishing panel on the drivers side
Post #498039 9th Dec 2018 7:28pm
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Ian928



Member Since: 16 Aug 2016
Location: Kristiansund
Posts: 78
Norway 2006 Range Rover Supercharged 4.2 SC V8 Java Black

Heads up for those of you with FBH:

I had a leak on mine, and filled it up with water to check for leaks. I then realised I had no heat and started looking for the problem. I turned out the seals for the two-way valve swithcing between engine and FBH had swollen so much that both ways of the valve were plugged. I believe this could be caused by osmosis (big coolant molecules trapped inside the rubber makes water diffuse into the rubber).

I changed the seals, and even with good seals I would say that this valve is probably a restriction in the system. I wonder if cars without FBH actually have more powerful heaters? 2006 Supercharged
Post #498132 10th Dec 2018 6:42pm
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Ridgeback



Member Since: 11 Apr 2018
Location: Ipswich
Posts: 11
England 

Update

Garage has found I do have a fbh & the valve between that n engine is seized It is being replaced today will update if it’s that.
Do all L322 petrol come with fbh ?

In other news I’m off to look at a 1959 caddy today Embarassed
Post #501079 10th Jan 2019 8:16am
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Dolphinboy



Member Since: 08 Dec 2009
Location: Bristol
Posts: 3232
United Kingdom 2016 Range Rover Autobiography SDV8 Baltic Blue

No, petrols do not come with FBH as std - it is an option. I have it on my v8 petrol autobiography.

Well done for identifying the cause. I reckon this is a common cause of heating probs (I had it on mine too)
Post #501081 10th Jan 2019 9:16am
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Ian928



Member Since: 16 Aug 2016
Location: Kristiansund
Posts: 78
Norway 2006 Range Rover Supercharged 4.2 SC V8 Java Black

As said my valve suffered from swollen valve seats, for interest it would be nice if you could report back if that was the problem for you. 2006 Supercharged
Post #501085 10th Jan 2019 9:40am
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Ridgeback



Member Since: 11 Apr 2018
Location: Ipswich
Posts: 11
England 

Ian928

The garage said the valve was seized he couldn’t move it, I will ask for the part & check
Post #501094 10th Jan 2019 11:01am
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Ian928



Member Since: 16 Aug 2016
Location: Kristiansund
Posts: 78
Norway 2006 Range Rover Supercharged 4.2 SC V8 Java Black

Thank you, this is just for history for others to see. If the seats have increased in size the valve will be stuck in the middle position, maybe this is what the mechanic is reporting. 2006 Supercharged
Post #501135 10th Jan 2019 5:59pm
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Carl 40BMI RRSC



Member Since: 02 Jan 2019
Location: Coventry
Posts: 8
England 2005 Range Rover Vogue SE 4.2 SC V8 Java Black

I have the same problem on my 2005 supercharged. Where is the valve located and wtf is an FBH? 🤔😂
Post #501145 10th Jan 2019 8:29pm
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Ridgeback



Member Since: 11 Apr 2018
Location: Ipswich
Posts: 11
England 

FBH = fuel burning heater, I’m sure someone else will advise you of where it is situated
Post #501146 10th Jan 2019 8:33pm
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Carl 40BMI RRSC



Member Since: 02 Jan 2019
Location: Coventry
Posts: 8
England 2005 Range Rover Vogue SE 4.2 SC V8 Java Black

Cheers fella. I don’t have one of those so can’t be that valve then.
Post #501147 10th Jan 2019 8:35pm
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Ridgeback



Member Since: 11 Apr 2018
Location: Ipswich
Posts: 11
England 

Read my 1st post & go from there
Post #501148 10th Jan 2019 8:38pm
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Sandyt



Member Since: 07 Nov 2013
Location: Wraysbury Windsor
Posts: 2280
United Kingdom 2007 Range Rover Supercharged 4.2 SC V8 Buckingham Blue

Glad you have it sorted and for reference mine was seized ie no movement can't comment on the seals though afraid
Post #501180 11th Jan 2019 8:59am
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Ridgeback



Member Since: 11 Apr 2018
Location: Ipswich
Posts: 11
England 

Fixed Very Happy It was the valve for the fbh See pic Part no. is on the box

Click image to enlarge


Pic with solenoid removed the sliver part would turn but not move up & down
Click image to enlarge


Taken apart It took a lot to separate it
Click image to enlarge


The offending seal It was rock hard & ‘seized’ to body of valve
Click image to enlarge


£230 from Range Rover £120 2nd hand on eBay I’m not sure if there’s a replacement seal kit available ?

I don’t know where the valve is situated I’m sure someone with a bit more knowledge will post
Post #501236 11th Jan 2019 7:03pm
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