Cooling fan only comes on with heater or a/c on.
My 2000 Acura RL normally runs beautifully. Recently, it has been
overheating. The cooling fan does not come on by itself. Only with the heater
on at full blast or with the a/c on. I was told to use the heater only, not the
a/c. But as soon as you turn the heater off, the cooling fan goes off. What
causes this? I've changed temp. sensor and something else, can't
remember. Any other suggestions?