L322 - Coolant Loss & Heater Problems

I have over the last few years spent hundreds with various specialists in the Essex area trying to get my L322 4.4 Vogue coolant & heating system sorted.

As far as i can recall I have had

1. a new water cooled alternator ( pricey)
2. New Expansion Box.
3. supposed leaking pipes replaced

The last of these works, expansion box was about this time last year.

As winter is drawing in again soon I happened to be in the car as a passenger ( missus uses it 90% of time ) & noticed again no real heat blowing. Temperature gauge as usual was dead bang in the middle ( as it always seems to settle)

I popped the bonnet & could hear a lot of noise & banging from the one year old expansion box.

I carefully popped the cap off & water / coolant started spewing out, with the fluid at boiling point.

I must add it always seems to loose coolant!

3 days ago as the check coolant symbol came up again I added about 1.5 litres of water as a temp measure.

Does anyone have any idea as to what it is as I am reluctant to hand it over again for another quick & expensive short term fix.

In laymans terms it seems to me the water is not circulating properly, but would appreciate any advice or refferals.

Finally this car does have LPG, which I do not think is relevant to this problem?

Help anyone?

id say water pump possibly.What temp does the car run at?L322 are a complicated beast

CHEAPEST first.........change the thermostat less than a tenner usually if it dont open it boils...............you could even take it out temporalily and try it to prove that that,s the problem,,,,other probs could be blocked rad,,vanes on water pump worn or corroded off ,,,air locked,,,blocked hose,,,head gasget on way out,,,,,start with cheapest and easy,st first then the more exotic and obscure things last ,,,hope this helps.........dave

SECOND thoughts boilin and rattling in expansion box mmmmmmmm sounds if it just might be air locked especially with no heat from heater r the heater pipes hot???????????by the way.........dave

I all ways have a prob with my classic filling the rad,,cure undo top hose at radiator end and fill SLOWLY,hold hose up and get a head of water quickly replace hose on rad,then top up header tank start engine let it tick over,watch for thermostat opening,,top up steadily as u go it allways works on me classic,,,,,,worth a try on your new un speccely when its cheap mate.............dave

Thanks Guys!

Will try

thermostate is a £40ish quid from land rover and is very coman to sticking closed you cannot bypass it as it is also the out put housing from the thermostate as well

Where would I locate the thermostat & is it a relatively easy fix to replace?

If so will try get a stat tomorrow & have ago if someone points me in the right direction.

Other than that it sits until my local garage can see it on Thursday......

Thanks Guys

If it has boiled throw the thermostate away, it cooks them, yes i laughed as well when i was told that but it does, i'm with the lads above bet its something simple like a air lock

stat is bottom left as you look get under and you can see it easy

did u find out what the prob was