Desperate Please Help Coolant Leak
Posted 04 January 2013 - 09:11 PM
Posted 04 January 2013 - 09:21 PM
Don't put a hole in the lid or else you'll end up with the water boiling off from there and cause another problem.
The tank needs pressure to re-condense the coolant.
Posted 04 January 2013 - 09:29 PM
Posted 04 January 2013 - 11:04 PM
If not you may have water coming from the washer nozzle mounts.
Posted 04 January 2013 - 11:55 PM
My Missis 55 plate fiesta had a bad coolant leak I tracked it down to the core plugs in the top of the head I replaced both of them and its been fine for 4 weeks then this week se broke down on the way to work there was no coolant in the tank (I'd checked it the day before an it was fine )I checked the head and the left hand side was full of water just like before I pulled the water out with a syrine wiped round the core plug but couldn't find any gaps or holes I topped the coolant up and run the engine to see if it leaked but Streight away it was humping out the water pump mountings could the engine be pressurising and pushing it out were it can and if so why? There's I'd no water or cream in the oil , should I try a small hole in the header tank cap to release pressure ??
You need to find out what happened with the core plugs - was it due to frost/ insufficient anti-freeze concentration
What can sometimes happen is a minor leak that has been topped up with water dilutes the anti-freeze over time then freezes when the winter comes - the core plugs are there to protect the block etc
The correct concentration needs to be maintained when topping up - even if there is a leak
The head gasket can blow/ leak - the combustion chamber can pressurize the water jacket - this can cause exessive pressure/ temps in the coolant - this is different from the water mixing with the oil in the crankcase
The EGR valve has a cooler - if this splits the exhaust gasses (high pressure/ temps ) can enter the cooling system
On some Fords the waterpump is connected to the power steering pump, and driven off the same shaft, sometimes if one "goes", they both "go"
one fault can have a "knock on" effect - eg a (faulty) fan not going on can burst seals etc
If the water jacket is being pressurized by the combustion chamber/s or exhaust/EGR it can throw out the coolant very quickly, and the car should not be driven untill it is sorted, or even more damage is possible
Best to get it sorted quickly - a waterpump is not expensive, but a head/ block/ engine rebuild is
Posted 05 January 2013 - 12:16 AM
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