> 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?
Turn the Fresh air / heater output knurled wheel to the heater output
position!
Tim.
G R Easton - 10 Sep 2007 02:30 GMT
>> 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
[quoted text clipped - 7 lines]
>
> Tim.
Thanks, but tried that to no avail. I suspect a bad servo/valve