mikeprice

Well I think it was just an airlock all that messing about and today I put the waterpump back and and rebuilt the other aux bracket bits, did a 2 part rad flush and it was still boiling up, tried a reverse flush and still the same. Finally a mate suggested filling hte whole system with water and forcing the pipes back on whilst the hose was running the water around, after 70 miles at 80-85 mph up and down dale its not boiled once. Could it really of been that simple? Still need to put another new thermostat in as I have left it out at the moment (it was still boiling without it though) and refill with antifreeze etc but I will leave it a few days just whilst I make sure it was just an airlock, that way if it start to play up again after I do that I will know its airlocked again not jus a reoccurance. Thanks for all the help and suggestions

Well I have the water pump out in front of me and can't see anything wrong with it, it is new and the impeller seems to work fine, so its a case of whats next for me

Just spoke to a mate he is an ex Ford Mechanic and says that if the bottom hose is cool the water is not circulating I should be looking for a blockage either in the Radiator or in the water jacket of the cyclinder head, alternatively the water pump is faulty though he wouldn't think it was that given that I have had a good poke around it. Booked the Radiator in with a rad place to get it tested

When i replaced the thermostat I spun the wheel on the water pump and could feel the impellers spinning so I had ruled that out and yes it wasn't a big job to change it, the bottom hose not getting warm is a worry to me and I wonder if it could be ther expansion cap? Other than that I think I will try this seal up stuff incase there is a crack somewhere

Ok OMC Ford lied I decided to have a go at the thermostat myself just to check and its not a new one it had coolant rust marks on it, I have replaced it now and checked the waterpump, Took it out for a 60 mile run, it didn't boil any water which it had been doing, but the temperature is still rising quite a lot on a long hill it will rise up to the red, could it also have a dodgy temp gauge/sender I wonder. The bottom hose is still cold is this normal? I haven't tried that Seal Up yet thought I would give it a few days to see what happens as it just doesn't show any signs of a failed HG/cracked head or block. Not sure what else to do atm.

Well its tested no leaks no pressure loss no blockages waterpump and thermostat working, they went on to say as that showed nothing they can only assume its the Head Gasket and would charge

Quick update on my car, rang OMC Ford who did the water pump and thermostat they said to bring it in and they will test it, if it is that either of them have gone then they are covered on warranty still, if its not then at least I will know and they might even identify the problem

Update I've flushed the system and refilled the coolant, ran the car for 6 miles and it was hot the water bottle was empty so I filled it again (took ~1.5 litres) ran it for 5 miles running hot and bottle empty again (took ~1.5 Litres), refilled the bottle did 40 miles without any problems. One thing I did notice was that the bottom hose never got warm never mind hot whilst the top hose was very hot even after the 40 mile run where it seemed to work without any cooling problems Wouldn't I notice something if it was a head problem given the amount of water it used? The car drives and pulls great other than this, it has done a warranted 78k miles and seems to have had no expense spared looking at the pile or reciepts that came with it Thanks Mike

Sounds a lot like I have the same problem Yesterday I bought a V 2000 Galaxy 1.9 TDI 110 ps. On the way back after about 10 miles it started to get hot so I pulled over and checked the coolant seemed a little low so I topped it up. A further 5 miles and it was hot again so I rested it and drove a the half a mile or so home. Today thinking it was a water leak I have filled it up and then run it on the drive for 20 mins can't see any leaks and the temp was normal. Took it for a drive 30 miles or so up some nice high peak terrain and still no problems. Left it to cold down and went the same run as earlier and it got hot again (heater was running cold air) I noticed that only 1 of the fans on the radiator was working and that the water level was low, on removing the water tank cap the level went back up. I can see from recent receipts that the car had a new water pump and a new thermostat in December 2007 so I rang the Ford Dealer that did them and they confirmed that they replaced them and pressure tested the head with no faults found. I have no idea where to start with the cooling system on this vehicle so any advice would be fantastic. Thanks Mike