Radiator Expansion Water Tank Cap Compatible for Fiesta Focus C-Max Mondeo

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IIRC, the OP did not tell us the reasons for the water pump replacement, referring only to a coolant leak, but the reservoir blowing was said to follow-on from it, That'd be a false negative. Probably more likely than a false positive, which would require contamination with coolant or old test fluid Make sure your engine is off and cool, the vehicle is in Park or Neutral, and the parking brake is set. Nifty physical test for HG failure. I dunno if that would work with a lower tech pressure gauge (or even an improvised manometer) but it seems a possibility. Difficult bit would be getting a good seal. Well, you can buy stuff for head gasket failures. Some of them have copper (powder?) in them, which I'd guess is an inert-ish particulate filler. Active ingredient seems claimed as sodium silicate here.

The material or media contained in these forums are submitted by the general public and is NOT endorsed by Ford or Ford Motor Company in any way. I can’t say that doesn’t happen, but I would have thought it was fairly unusual, since thermostat removal is/was quite a common bodge/workaround for overheating problems. The puzzling aspect is the leak stopper suggestion. AFAIK there's no leak stopper to seal from within the combustion chamber (There are goos that are supposed to restore some compression but I THINK they are supposed to seal the rings). It'll only do that if it leaks coolant into the combustion chamber, or blows its coolant out / overheats during testing. I daresay. But one can't conclude that, because it always worked on Vauxhalls, it will always work on everything.

Your car’s heating and cooling systems are important factors in having a comfortable ride all year round, but especially in extremely hot or cold conditions. Car Cooling System

So much confusion over a simple system! I take it none of you are plumbers or heating engineers? It works exactly the same way as your hot water tank or central heating radiators at home.I wouldn't do that, and I probably wouldn't buy the kit they use, but it should be possible to adapt another form of pump. It will however, also slow your engines warmup times, and if you’ve got any starting difficulties now, perhaps from a bit of coolant getting into the cylinders, they’ll probably get worse. This may be tolerable, at least for the summer. The reservoir has a fill range marked on the side. If your engine is cold, the coolant level should be up to the cold fill line.

CarGurus UK Limited, c/o Legalinx Limited, 3rd Floor, 207 Regent St, London W1B 3HH, United Kingdom I suppose you could “tune” it with a blanking plate with a hole in it, to provide less but still some restriction. Dunno if I'd buy one though, even if you could get them here. Pretty sure my cooling system has never been under significant vacuum and it might not thrive. DISCLAIMER: fordownersclub.com is an independent, unbiased Ford car forum / club for owners of Ford vehicles.The Internyet has many instances of cars that are difficult, for which the pro fix is a vacuum pump. The vid link (a Jeep Liberty IIRC) I give above is just one example. Roll up or remove loose clothing, and keep your arms away from the cooling fan(s). Fans can turn on automatically, even when the engine is off. Clarkson cut holes in his classic Range Rover bonnet on the Bolivia Special to ameliorate an overheating problem, but that would affect resale. Less permanently you could remove the whole bonnet, but I donno how legal that would be in the famously anal UK.

If it were mine I would keep a close eye on the coolant. Your engine will only overheat if you loose a significant amount That's a very broken car though. Might not be sufficiently sensitive for a marginal integrity loss. I suppose I could mist water into the air intake to slightly reduce the risk but there's a bit too much happening as it is. So 8 months ago i had my head gasket replaced, 2 days later i notice steam coming from under the bonnet, turns out it was the thermostat, everything was fine until today, steam once again coming from under the bonnet , cooolant tank virtually empty...so, in the past 8 months its had a brand new head gasket, brand new thermostat, brand new coolant tank cap...Right at the beginning of this thread I suspected CHG failure. I think paul 1963 (post above) is spot on. The symptoms described are a classic example of a tiny defect appearing. I've had 2 or 3 serious overheating incidents due to failed repairs on the fan control circuit, so I'm expecting a head gasket failure. Hi Freddy42, I know you posted this over 3 years ago so I'm asking this more in hope that you will reply. I am having the same problem you had concerning The gas test on the coolant isn't infallible - the Hyundai dealer spent 18 months doing the test and denying any issue with the head gasket on my Santa Fe and only accepted it had blown after it "blew up" on the motorway and even then couldn't find the exact issue when they took the head off. So I've recently had a coolant leak repaired on my 2008 model Ford fiesta where the mechanic noted that the water pump and thermostat needed replacing. Having had those replaced and my car returned to me, the leak has stopped however the coolant has begun to boil/bubble after driving the ~30 minute journey to/from work (~20 miles each way).