Questions & Answers for: Saab temp knob

...Temp control knob turns freely, but does not do anything to alter temp. I pulled the stereo and the rod behind the knob turns, but don't know where it comes thru the firewall to check there. ...

knob while the car is running? suction noises, or flaps opening? If not, then you likely have a vacuum problem (check for a white bottle in left front wheel housing, except convertible -> under the

temp control knob to the heater valve behind it may not be properly in place. This can be inspected, and adjusted if necessary, from the left side speaker/vent cutout on top of the dash. Make sure you

...temp control knob to the valve behind it may not be properly in place. This can be inspected, and adjusted if necessary, from the speaker/vent cutout on top of the dash. Make sure you re-connect the ...