At 10:03 AM 1/12/2002 +0100, you wrote:
>- My guess would be the problem is a leak in the heat exchanger in the
>bottom of the radiator. When warmed up, there is greater pressure in the
>radiator than there is in the coolant lines and exchanger so the radiator
>solution enters the exchanger but trans fluid does not enter the radiator.
>i'll take the radiator to a radiator shop to check it. The theory sounds
>good but when the engine is stop, does the trans.fluid couldn't
>contaminate the coolant ? And if ther's a leak in the exchanger, the
>trans. fluid would be higher than normal. On the car the trans. fluid is a
>the correct mark.
When you turn off your car, the coolant temperature rises from residual
heat, and do does the pressure in the cooling system. In the same time,
since the transmission pump is not moving, there is no pressure in the
transmission lines, so this would be the time of highest pressure
differential and highest leak from radiator to oil. Even when the engine
is running and the tranny pump is turning, I doubt there is any restriction
in the return of the cooling line, so there is very low pressure in this
line (even though there is flow). About the fluid level, you have a good
point. It is possible though that the leak is very small and some/most of
the water evaporates, but not before it does its damage (remember, the oil
does get quite hot, probably hotter than the boiling point of water). D^2
Back to the Home of the Forward Look Network