Auxillary fan E30 89 325i - Please help
This one has me stumped and hope someone can help. My auxillary fan only works when the ac is on. The temperature drift up past high an at time goes higher but the fan doesn't go on, low or high speed.
I jumpered the wires going to the radiator thermo switch and the fan goes on both low and high. So a replaced the switch but still it doesn't come on without the ac.
Today I replaced the thermostat and flushed the system. Now the car runs hotter at 3/4 range (used to run a little above 1/2) and still no fan.
What next? Could the new radiator thermo switch also be bad.