G'day,
I'm having trouble with a Viscous fan on my '02 Defender. My fan is newish and operates as it should, until I use my A/C. About a minute or so after I turn on the A/C my fan will engage and remain so, even down the highway at 100k, which loads my engine and destroys fuel economy. But if I turn the A/C off the fan disengages after about 2 or 3 minutes. The condenser fan works as it should and I've flushed the main radiator and refilled her with proper coolant. I've also taken the intercooler off and given her a good clean. There are definitely no obstructions to air flow and the engine has never remotely overheated. Im at a complete loss.
Driving the outback with no A/C is a bit of a pain.
Any help or advice would be tops.
Ta.