: 1998 Catera Defrost blows at feet



jeffrandi
01-25-10, 09:51 PM
In my 98 cat, the heat works fine, swithes between dash and feet ok, but deforst blows hot air at feet. Any ideas? Thanks.

Black02SLPSS
01-25-10, 10:24 PM
Unless the catera is just completely screwey in every sense, the switcher that controls where air is blowing is vacuum operated. I would see if there are any damaged lines. I dont know where they are tho..

wamanning
01-26-10, 10:59 AM
perhaps one of the doors is out of sync w/ the rest. so do this:

1. turn ignition to "run" position (1 click prior to the starter engaging"
2. on the HVAC, press the AUTO and OFF buttons SIMULTANEOUSLY and HOLD FOR 5-SECONDS.

this will initiate a reset/recalibration of the HVAC controls and air-handling mechs. you will hear all sort of stepper motors whirring and clicking. let it runs it's course, when silent you're good to go.