S70 Heating Problem

Discussion in 'Volvo S70' started by G R Easton, Sep 8, 2007.

  1. G R Easton

    G R Easton Guest

    I'm having a problem with a 1998 S70 heating system; with the heat turned
    up, hot air is only coming from the side vents. The center vents are blowing
    cold. There is lots of heat from the sides but nothing at all in the center
    in any setting(Heat, Defrost, etc.) I suspect either a vacuum leak or bad
    servo/valve. Anybody pint me in the right direction on where to start?

    TIA
     
    G R Easton, Sep 8, 2007
    #1
  2. G R Easton

    Tim.. Guest



    Turn the Fresh air / heater output knurled wheel to the heater output
    position!

    Tim.
     
    Tim.., Sep 9, 2007
    #2
  3. G R Easton

    G R Easton Guest

    Thanks, but tried that to no avail. I suspect a bad servo/valve
     
    G R Easton, Sep 10, 2007
    #3
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