For the past few days my car has been over heating. when i check the radiator and the reservoir... both are empty... so i added fluid and checked for a leak... to my surprise... NONE!!!! no leaks in the hoses or clamps... my mechanic said it could be a leak in the a/c heater where it gets hot water to heat the a/c... is this possible? now he bypassed the hose for the heater ( no heater now) and im gonna check if my fluid levels still diminishes....what else can be the problem? tnx for the help....

 

Maybe your thermostat is not opening, and causing the coolant in the reservoir and radiator to heat up and evaporate. Its happend to me before.

 

ummm... i doubt its the termostat cuz i removed it... since i live in the philippines my mechanic suggested to remove it... do u think if i replace my termostat it would do any good?

 

be the head gasket, m8, do a pressure tels on each cylender with a good strong air line n c if bubbles come up in the rad

 

Is the temp gauge going up or is the fluid boiling. If the fluid is boiling it could be your radiator cap. if the spring is shot there is lowered pressure in the lines and the coolant will boil when it is under less pressure than it is supposed tobecause lower pressure=lowered boiling point.

 

FINALLY found it!!!! its a small crack in the lower radiator hose near the engine block... it only spurts out when theres pressure.... argh! hhahahah tnx for help guys!