Help!! water temp rise till 100 when drive more then 80

[ftzone]

what kenzo said not happening.... water i check twice a week, only loss a bit after two weeks time..... normal rite? no oil stain at water....... no leak... when yesterday i try drive slowly accelerete till 100.... water temp stop at 93 with aircon on..... :hmmmm:

If you loss some coolant in your radiator there must be a leak somewhere. When you use pressurized test and find no leaks but still you loose coolant after some sprited driving.. I'd be betting on a leaking headgasket. The gasket leak is not bad just a little and this causes your water temp to rise above 100deg C whenever you drive your car hard enough.

 

[peterj]

i repeat once... no rusting in radiator, water clear, kenzo, hard drive will not rise if only lajak for a few moments, but if drive for longer period, it rises to 100 and i not dare to let it rise again so i off aircon and slow down then it go back.....

 

[DanzEterna]

but how do u know that yr radiator has no rust?
last time i always flush my radiator once a week, water is crystal clear, then 1 day my water temp suddenly shoot up, immediately send to radiator shop, opened it, they said the rust accumulated to the right side......so dont think your water inside is clear doesnt meant that there is no rust.

 

[peterj]

the radiator is serviced b4.. instead, i have not flush the radiator since i put in water and coolent when i start run my new engine... already 1 month time.... if gt rust i think the water is logically wil dirty rite?