RTV900 running hot

[Notforhire]

It was in the low 80s today and I'm driving down the road pretty much flat out. I look at the temp gauge and it's in the red. There is a down hill slope ahead so I put the transmission in neutral. I coast for about 15-20 seconds and I watch the temp drop quickly to normal. All fluids are up and clean. The radiator and screen are clear. Could the transmission be making that much heat? Thoughts?

 

[mike0000]

Not sure about the transmission, I think I’d check the thermostat and make sure the water pump and belt are good. Radiator fan is worth a check too.

 

[Notforhire]

Not sure about the transmission, I think I’d check the thermostat and make sure the water pump and belt are good. Radiator fan is worth a check too.

You are correct!
Turns out the thermostat was NG as well as the fan switch.
I replaced the temperature gauge with one that is easier to read and changed the thermostat. We were without power for a couple of days and our generator doesn't feed the shop so the fan switch was put on hold.

 

[mike0000]

You are correct!
Turns out the thermostat was NG as well as the fan switch.
I replaced the temperature gauge with one that is easier to read and changed the thermostat. We were without power for a couple of days and our generator doesn't feed the shop so the fan switch was put on hold.

Good to hear, glad you have it figured out.