Instructions for getting to the heater blending actuators and doors 2009 LaCrosse

[GeneH]

I'm not getting hot air on the floor or defroster settings. Last winter was a pretty frigid drive to work. In the vent-only mode the air temp is 115 f. (kitchen thermometer). Outdoor temp today 75f. Vent-floor mode does get a little heat to the floor, floor-defrost and defrost does not get any heat. Air conditioning works like a champ.

Heater core has been flushed.

I want to get under the dash and check out the blending doors and motors or actuators. Would like to see some instructions and drawings of the setup. (Actually I don't want to but can't afford the dealer) I did not try disconnecting the battery and pulling the fuse to recalibrate the sensors and doors - but the battery has been disconnected a few weeks ago, and today I did pull the fuse out for a minute then put it back in.

Being kinda broke I don't want to take it to the dealer, and don't have the diagnostic tool, but maybe I should have someone do that first.

 

[nbennett]

Two of the actuators can be accessed by removing the glove compartment. Watch them move while moving the controls around to see if they are working. I had trouble with my heat but found it was just bad thermostats. A new thermostat that was a dud caused me to think the actuators were the problem and do an unnecessary flush job.