Regulating cab temperature
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by mike216, Jul 24, 2020.
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Interesting. I guess not many order anymore. Hardly ever see em'.spsauerland and Roberts450 Thank this.
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I have nothing that looks like that. I have a manual valve outside firewall. Took the cover off outside.See the heater coil.No actuator or valves.Took glove box out and cover under glove box. Saw nothing that looks like a actuator contacted to water valve. Put it all back .Shut off the manual water valve. It’s a bandaid fix for now. The air condition is blowing cold air out the vents.Have to do some more searching for water valve.
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It is a T660, not T680 correct?
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2016 T660
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Valve is on outside of cab, front corner below the HVAC box. Will see the two 5/8 silicone heater hoses. Snap a picture of that area.
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Green hose in this picture goes to the water control valve.
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Thanks,The truck gets back tomorrow night I’ll look for it.Somehow I think mine looks different. I have two lines going up to firewall.One has a manual valve on it.The other is teed to a line going to the head.Last edited: Jul 26, 2020
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The water valve is not easy to find if you're not familiar with where it is. I'll try to remember to take a picture of where mine is hidden in the morning.mike216 Thanks this. -
Where I'm pointing is where the control module goes. It's just a naked valve right now.spsauerland Thanks this.
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