Follow up on replacing the HVAC Mode Actuator.. Again, you hear a bunch of clicking noise in the dash and you notice the air won't move from middle vents to the bottom vents and to the defrost vents.
If you look at the GM 89018376 and possibly the AC/Delco unit, you will see the actuator comes with a bracket and wheel attached to it.. You do not need that bracket and wheel nor do you want replace those parts. All you need is the main motor unit. Look at the pictures for the Dorman 604-146.. The Dorman felt like a more solid unit compared to the GM unit.
Look up under there and you will see the two actuators and verify the which one is clicking. The hardest one is the MODE actuator, the other one is the heater blend actuator (hot to cold air).
Disconnect the battery.. You will have too anyhow so the computer can relearn the new motor once its installed.
Remove the drivers seat if you have a Torx to do so.. MUCH easier.
Once you remove a black box and a tube. Remove the 3 5.5mm bolts and pull the motor off (again, do not remove the entire assembly).. If its like my car, the middle part of the motors shaft will stay stuck to the car since that is part of what broke.. Get your channel locks and get it off of there.
Replace the motor actuator unit and hook the battery up. Then turn the key on (engine off) for 1-2 minutes and let it learn itself.
2003 Ivory -hard loaded but stock- Bonneville SSEi ::Luxury with Attitude::
88 Bright Red Pontiac GTA L98 - "Gone but not forgotten"
Last edited by Ivory03; 02-21-2014 at 10:45 PM.