hot air thru vents

Discussion in 'Trucks [ Eighteen Wheelers ]' started by noguns3, Mar 29, 2012.

  1. Mar 29, 2012 #1
    noguns3

    noguns3 Light Load Member

    52
    13
    Jan 7, 2007
    Minnetonka, MN
    0
    I have a Detroit Series 60 and I have all valves closed for the summer. I am still getting a ton of hot air thru the vents. I have clamped off hoses to the heater core under dash, and it seems to help some, but there is still a slight problem. When on a\c mode, it blows cold air and works fine. Any suggestions? As I said, all valves are off.
     
    noguns3, Mar 29, 2012
    noguns3, Mar 29, 2012
    #1
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  3. Mar 29, 2012 #2
    Superhauler

    Superhauler TEACHER OF MEN

    12,209
    100,735
    Jan 30, 2010
    keep stroking.
    0
    do you have a fresh air button or switch. if so set it to recirculate.
     
    Superhauler, Mar 29, 2012
    Superhauler, Mar 29, 2012
    #2
    Gears Thanks this.
  4. Mar 29, 2012 #3
    brenes-built

    brenes-built Light Load Member

    157
    15
    Apr 14, 2011
    Vancouver, Wa
    0
    What kind of truck is it? My friends truck was blowing hot air all the time even when off it had to do with the control valve.. His truck is a century.
     
    brenes-built, Mar 29, 2012
    brenes-built, Mar 29, 2012
    #3
  5. Mar 30, 2012 #4
    Graglor

    Graglor Light Load Member

    62
    15
    Aug 17, 2011
    Langley, bc.
    0
    The heat taps can leak internally. If BOTH taps are closed to the heater core and your still getting heat, they are leaking.
     
    Graglor, Mar 30, 2012
    Graglor, Mar 30, 2012
    #4
  7. Mar 30, 2012 #5
    Everett

    Everett Crusty Shorts, What???

    2,095
    6,401
    Oct 20, 2009
    Hampton,Ia
    0
    did turn off the bunk heater valve , see theres one on there somewere mayby that will do it.
     
    Everett, Mar 30, 2012
    Everett, Mar 30, 2012
    #5
  8. Mar 31, 2012 #6
    Dino1968

    Dino1968 Light Load Member

    181
    64
    Sep 22, 2011
    IN MY _ If I tell ya I gotta killya
    0
    On my T 600's they have a cable that connects to a valve that's supposed to shut the hot water off. Problem is they quit sealing once they get some age on them, and will let just enuff hot water past to make you think they're open. Usually I just put some ball valves in them to shut them off manually. I know you have a Freight liner. but it should work somewha the same. Follow the 5/8 green hoses off the waterpump, you'll see the valve along there somewhere.
     
    Dino1968, Mar 31, 2012
    Dino1968, Mar 31, 2012
    #6
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.