Regulating cab temperature

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by mike216, Jul 24, 2020.

  1. Roberts450

    Roberts450 Road Train Member

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    My 2018 pete has water shutoff’s they are an option when the trucks are being ordered.
     
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  3. Goodysnap

    Goodysnap Road Train Member

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    Interesting. I guess not many order anymore. Hardly ever see em'.
     
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  4. mike216

    mike216 Bobtail Member

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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.
     
  5. spsauerland

    spsauerland Road Train Member

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    It is a T660, not T680 correct?
     
  6. mike216

    mike216 Bobtail Member

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  7. spsauerland

    spsauerland Road Train Member

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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.
     
  8. spsauerland

    spsauerland Road Train Member

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    Green hose in this picture goes to the water control valve. Screenshot_20200726-182933.png
     
  9. mike216

    mike216 Bobtail Member

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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
  10. HoneyBadger67

    HoneyBadger67 Road Train Member

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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.
     
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  11. HoneyBadger67

    HoneyBadger67 Road Train Member

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    15958547186402749033457311274397.jpg 15958547848685515258094457114325.jpg

    Where I'm pointing is where the control module goes. It's just a naked valve right now.
     
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