Loosing Water, what next?

deangermouse · Sep 1, 2024

Ok, Range Rover sport 2.7 2007. I have had this 9 months and driven around 2k miles. The problem is that it looses water approx 1 litre every 100 miles. So far I have done a sniff test (all ok) the footwells are dry, replaced expansion tank, water pump and thermostat housing inc various pipes, still no difference. If I leave it ticking over there is never any water underneath. I am running the coolant system with water and it stays clean I'm thinking of replacing the rad but open to suggestions
Any help appreciated
Thanks

lynall · Sep 1, 2024

Get it pressure tested hot and cold.
Kits on ebay about 60/70 quid.

28pcs Radiator Cooling System Pressure Tester Coolant Purge Refill Vacuum Kit | eBay

28pcs Universal Radiator Pressure Tester and Vacuum Type Cooling System Kit. Hand Held Vacuum Pump Pressure Tester Car Brake Fluid Bleeder Bleeding Tool Kit. 1 x Vacuum Type Cooling System Purge and Refill Tool Kit for quick change of coolant.

www.ebay.co.uk

kermit_rr · Sep 1, 2024

Likely weak spots are usually the cap or expansion tank. In general

deangermouse · Sep 1, 2024

kermit_rr said:
Likely weak spots are usually the cap or expansion tank. In general

Already changed it

Ratae · Sep 1, 2024

Pressure test hot & cold as already suggested.

Had a few leaks over the years on my 3.5 Classic & it's usually been the pressure test that gave the 'Got you you bastard' moment.

biketeacherdave · Sep 1, 2024

Egr valve very common fault the lost coolant usually evaporates off so you don't know where its going.
Look up LRTIME egr valve

Loosing Water, what next?

deangermouse

Active Member

lynall

Well-Known Member

28pcs Radiator Cooling System Pressure Tester Coolant Purge Refill Vacuum Kit | eBay

kermit_rr

Very

deangermouse

Active Member

Ratae

Well-Known Member

biketeacherdave

Well-Known Member

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