Re: Radiator Coolant Hose Valve Broken - 2006 Range Rover Sport

There are indeed a couple of weak links in the coolant system, there is also a T-valve made out of plastic directly below the engine cover. I'd highly recommend replacing that as well. But other than that, the hoses themselves don't need to be replaced preventatively, they'll last quite a while.

 

Re: Radiator Coolant Hose Valve Broken - 2006 Range Rover Sport

There are indeed a couple of weak links in the coolant system, there is also a T-valve made out of plastic directly below the engine cover. I'd highly recommend replacing that as well. But other than that, the hoses themselves don't need to be replaced preventatively, they'll last quite a while.

Yeah, that bleed T-valve failed on my 2006 as well - made quite a mess in the engine compartment (plus it's under the stupid "vanity" engine cover, which gives you the willies as you cannot see what's leaking that bad until you get to a shop and the cover comes off.)

 

Re: Radiator Coolant Hose Valve Broken - 2006 Range Rover Sport

Just replace with a brass connector from a hardware store we never use that bleed point on the 4.4/4.2 at the dealer and it fails on every RRS/LR3. While you are checking your coolant system check your thermostat housing it there is any coolant residue go ahead and replace the whole assembly with the thermostat. That is another major failure point.

Hope your doing well!

 

Re: Radiator Coolant Hose Valve Broken - 2006 Range Rover Sport

Just replace with a brass connector from a hardware store we never use that bleed point on the 4.4/4.2 at the dealer

Found the same with my guy.

I'll answer my own question...its a 3/8" hose barb.

Going to just use a straight 3/8" hose barb. :thumb:

 

Re: Radiator Coolant Hose Valve Broken - 2006 Range Rover Sport

I need to check mine I guess. I'm curious why that part is failing like that--poorly cast Chinese crap? bouncing around and hitting something else? or getting cracked when someone tries to open it? clamps too tight? :think:

 

Re: Radiator Coolant Hose Valve Broken - 2006 Range Rover Sport

I need to check mine I guess. I'm curious why that part is failing like that--poorly cast Chinese crap? bouncing around and hitting something else? or getting cracked when someone tries to open it? clamps too tight? :think:

Just a piece of plastic, it really should be brass, not plastic as I think the heat from the liquid eats it away!

 

Re: Radiator Coolant Hose Valve Broken - 2006 Range Rover Sport

That part he's holding is plastic? Wow...it looks like brass.

 

Re: Radiator Coolant Hose Valve Broken - 2006 Range Rover Sport

That part he's holding is plastic? Wow...it looks like brass.

Not sure about that picture, but the one I was referring to under the engine cover is plastic. Hard to tell on the one above...

 

Re: Radiator Coolant Hose Valve Broken - 2006 Range Rover Sport

Just FYI, BPUtah sells the genuine article (plastic...) as well as most of the hoses: http://www.britishpartsofutah.com/Range-Rover-Sport-LR3-Coolant-Hose-Bleed-Valve-LR0-p/lr027661.htm

 

Re: Radiator Coolant Hose Valve Broken - 2006 Range Rover Sport

Thanks Umberto. Any of you blokes know what size the hose barbs are---so I don't have to take the cover off and find out? I think I'll just replace mine with brass.

 

Re: Radiator Coolant Hose Valve Broken - 2006 Range Rover Sport

I'll answer my own question...its a 3/8" hose barb.

So I was looking around for a brass 3/8" hose barb tee with a 1/8" female NPT connection for something like this...

http://www.jegs.com/i/JEGS-Performance-Products/555/51108/10002/-1

and I've given up. So I'm just going to order the OE fitting and treat it as something I need to replace every few years.

There's plenty of male NPT tee types but then I gotta get a reducer bushing, and it starts to look like a plumbing project gone mad.

 

Re: Radiator Coolant Hose Valve Broken - 2006 Range Rover Sport

This fit the bill:

3/8" ID is actually a touch larger than the stock bleeder tee, but the OD is the same.

 

This fit the bill:
View attachment 17604

3/8" ID is actually a touch larger than the stock bleeder tee, but the OD is the same.

3E - saved my day with this part you found! Did my heater core this weekend, along with the 3 blend door actuators (all except the face/footwell which was too high up behind the instrument cluster).
When bleeding the system, this POS peice broke, it was brittle. Replaced it with a brass straight through one from home depot for $1.60 (http://www.homedepot.com/p/SharkBite-3-8-in-Brass-PEX-Barb-Coupling-UC006LFA/202270566). Will never have to worry about it breaking again on the road. I just did the bleeding from the expansion tank.

 

Re: Radiator Coolant Hose Valve Broken - 2006 Range Rover Sport

do you need to bleed the system when changing this out. 112K on the beast and in this 104 degree heat in Big-D, might be pro-active and change this out.

 

Re: Radiator Coolant Hose Valve Broken - 2006 Range Rover Sport

do you need to bleed the system when changing this out. 112K on the beast and in this 104 degree heat in Big-D, might be pro-active and change this out.

I didn't. Just fine in 104* heat here.

I also didn't bleed it when I did the thermostat, but then I got a "low coolant" message. I just proceeded to bleed from the overflow and it worked just fine. I'm sure if it's something fairly small, the system can handle it on its own with the overflow.

 

Re: Radiator Coolant Hose Valve Broken - 2006 Range Rover Sport

I didn't bleed mine. I did the swap in the morning with a cold engine. That valve is ralitvly high in the coolent system, and had very little fluid leak when the T valve was removed. I have drivin about 1500 miles now with no coolent problems.

 

Re: Radiator Coolant Hose Valve Broken - 2006 Range Rover Sport

Speaking of bleeding the cooling system, this SSM popped up on TOPIx recently, apparently the 5-liter engine is subject to overheating if filling / bleeding procedures are not followed per shop manual instructions.

Reference	SSM66677
Models	Range Rover Sport / L320 LR4 / L319 Range Rover / L322
Title	5.0L V8 (AJ133) overheating due to incorrect coolant fill
Category	Engine
Last modified	26-Jun-2013 00:00:00
Symptom	402000 Cooling System Concerns
Content	Issue: After the engine coolant on a 5.0L V8 AJ133 engine has been partially or fully drained and filled, the customer experiences the engine overheating. Cause: The refill procedure has not been completed correctly, resulting in insufficient coolant in the engine. Action: When refilling the coolant system on AJ133 V8 make sure the TOPIx procedures are carefully followed. Please refer to the information below for the TOPIx sections: Range Rover (L322) 303-03C Range Rover Sport (L320) 303-03B Discovery (L319) 303-03B

 

Re: Radiator Coolant Hose Valve Broken - 2006 Range Rover Sport

That bleed by design is at the high point in the coolant system. So if you just disconnect it one side at a time and replace the valve, everything should be fine. Before putting the cover back on (and I would start the engine and make sure its not leaking at the new valve before replacing the cover)you could always bleed it there.

And FWIW, I ziptied mine to the throttle body to prevent it from flopping around. IDK if this helps but it seems to knock around in there w/o a ziptie.

 

Re: Radiator Coolant Hose Valve Broken - 2006 Range Rover Sport

And FWIW, I ziptied mine to the throttle body to prevent it from flopping around. IDK if this helps but it seems to knock around in there w/o a ziptie.

Could be the very reason for premature failure.

 

Re: Radiator Coolant Hose Valve Broken - 2006 Range Rover Sport

The shop said the same thing about these at 105K maintenance. They said the throttle body line adapter will be replaced with brass. i got it changed, dont know what part they used.

 

Re: Radiator Coolant Hose Valve Broken - 2006 Range Rover Sport

Where exactly is that T-Piece? I just found a leak at the thermostat gasket, and being paranoid because of YOU guys, started looking for it If I can't find it, I'm wondering if someone replaced the whole thing with one hose? (2006 RRS)

 

Re: Radiator Coolant Hose Valve Broken - 2006 Range Rover Sport

I couldn't find it on mine either. Are the supercharged ones different ? I already bought the brass piece from Home Despot.

 

I replaced this valve with a nylon one of the exact size from a plumbing supply house. The cap is brass, the store owner suggested nylon, indicating brass may react with the coolant and cause issues. Seems to work fin .

 

bit late to this post. I had the hose secured and foam padded on my 4.4 Unfortunately it still failed on me.

 

This isn't on the 4.2, they're only on the NA V8.