Water pump problems

Water pump: It allows the refrigerant to flow inside of the engine.
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Water leakage

Volkswagen Fox 2005  140000 miles
My car has got an important water leakage and the mechanic does not what else to check or change. The water inlet tube, water pump and radiator have already been checked and they are alright. However, water with cooler is being lost.
malachi from United States 8 years ago  
MA
1 reply 
Andybaron from United Kingdom 6 years ago
Could be a coolant leak check all water hoses around the engine look for signs of crystallised coolant. Do a leak down test on the cylinder head and listen for compressed air entering the exhaust system make
Sure engine is at top dead centre and all valves are closed when doing this test. Check for bubbles in the radiator and coolant bottle. Also check the coolant bottle could have cracked and be leaking it’s olastic after all. Check water pump also if no leaks are determined anywhere pressurise the cooling system and again check
For leaks. Check the heater matrix as water could be leaking behind your dashboard and be hidden by your carpets. You would smell coolant in your car if it was leaking there. Hope this helps :)
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