Quote:
Originally Posted by Irace86.2.0
How do you tell the fans are kicking on in motion? Can you hear them or something?
I checked tonight after I came home, and all my hoses were hot to the touch. My fan was cycling on and off while idling.
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The temp the sensor sees defines when the fans kick on. It's obvious when they kick on and off when watching my laptop based on temps rising or lowering.
So I tested some stuff when I got back to the house.
My previous settings for fan 1 to kick on was 198 and it should shut off at 190.
Fan 2 was set to kick on at 204 and should shut off at 195.
I started the car in the garage and let it idle. I revved it up a little to get the temp up and fans kicked on as intended. The thermostat housing got warm enough to start to warm the lower hose. Not much though, so it didn't seem to be fully open. Either way that's what I expected to happen.
So I adjusted the temp on fan 1 to kick on at 200 then shut off at 195. Then fan 2 was set at 202 and same shutoff at 195.
This allowed the lower hose to get warmer when idling in the garage.
I took the car out for a spin and under load with RPM above 3k I can keep the car below 200 easily. If I putter around at 2k however the temp started to climb. In fact it managed to get to 212 under light load. I quickly sped up RPM and it would drop pretty quick. When I pulled the car back in the garage it was hovering at 207 and couldn't drop enough with both fans on. The hose on the passenger side was hot but again now the lower hose is cold. Not ice cold but actually cool enough it's shocking.
I don't have a way to really check the temp on the thermostat housing but it's warm. Clearly still not enough to open the thermostat.
At this point I'm ordering a low temp thermostat to get a quick cheap fix and then when I can manage the downtime I will add a second coolant line to the thermostat housing.