My Golf suddenly now starts to overheat badly, and although the oil buzzer goes off, the temp buzzer stays quiet. It's full of oil, and antifreeze.
Hi could you try doing this:
get the engine warm then turn the heater on to its hottest setting then turn it on, if you only get cold air then this points towards the thermostat staying shut and if this is the case it will need replacing before you do any damage to the cylinder head and or cylinder head gasket.
if you have hot air coming out the the problem could be one of the following problems.
1, check for any signs of leaking coolant if you have a leak then this lets air into the system causing an air lock this stops the water pump pumping the coolant around the system and this prevents it from cooling, the leak could be either split hose, damages rad or leaking water pump so have a good look around all the engine and pipes looking for leak, the water pump is located where the timing belt is so have a good look around here.
2, water pump could be damaged and may need replacing.
3. worse case you head gasket could be damaged, if you find no leaks ant the thermostat is ok then your going to need to get the head gasket checked your car will need taking to a garage to have a color test done this checks the coolant for signs of engine gasses and if they are found it indicates head gasket failuer.
it will cost next to nothing for them to do this test.
if it is the head gasket then you need to find out what caused the head gasket to fail, it could have failed on its own or the water pump or thermostat could have caused it to fail.
check the oil for signs of water if you have a white substance if the oil filler cap then this is a sign water is getting into the oil via the head gasket, also check the coolant for the same signs of a white substance this indicates head gasket failure and the only solution would be to have the engine re-built to replace the cylinder head gasket.
this is a big job to do
let me know how you get on or if you need further assistance ok
Aug 14, 2010 |
1989 Volkswagen Golf