Originally Posted by German_Tuna

Would a stuck closed thermostat, cause a lack of coolant flow across the fan switch?

I am having this issue as well, just picked up the car, fans not working, even with A/C on but the system is likely out of refrigerant. They do spin when i jump the pins so i know all of that is good and i got a new fan switch to be safe.

I was wondering if a stuck closed thermostat would cause a lack of flow in the radiator and keep the hot coolant away from the fan switch.

Any help with this will be appreciated. Since it sat for 2 years I’m leaning toward doing the TB water pump and thermostat based on that fact alone.

Originally Posted by pointblank9957

Don't mean to revive a dead thread, but I had this issue with mine as well. It ended up being a plugged radiator. There was a TON of gunk in the bottom of the end tank where the cooling fan switch lives. New radiator and all is well.