Not related to grade, load or ambient temp.
When overheating occurs-fan(s) do not cycle on.
Observing gauge as temp. Starts to rise - quick application of Auto or AC temp control gets fans operating and restores temp to normal-until next intermittent occurence. This seems to control the situation.
No coolant leaks.
Pressure tests good.
Radiator re-cored and hoses good.
New radiator cap.
Thermostat and thermosensor - new.
Neither oil or coolant is contaminated.
No loss of coolant.
Completely blocking and restricting air flow to radiator does not trigger condition - remains normal.
Overheating could just as easily occur while coasting down a hill on a cold day ! Is there a sensor or? That speaks to the fans as coolant heats up - perhaps suffering an intermittent glitch?
Thanks for any help you can provide.
One hour of Acura Dealer's Time -Unproductive. Bob
have the same problem?
Friday, September 28th, 2007 AT 2:31 PM