Improper HVAC Temperature and/or Air Delivery Due to Failed Mode Door Actuator on Chevrolet Silverado 2500

One or more heater & AC (HVAC) air delivery and/or temperature mode door actuator may fail. This can result in incorrect air delivery or temperature. If this occurs, fault code(s) stored in the HVAC control module should be available to assist with diagnoses.

RepairPal Verified
Average mileage: 146,500 (82,000–260,000)
6 model years affected: 1999, 2000, 2001, 2002, more2003, 2004
28 people reported this problem
11 people shared problem details
The problem is that the air only blos out the defrost and will not change over to any other outlets. I am having trouble finding the delivery door actuator for this, but have foound the temperature control one and it is working fine, so far. Any help on finding this thing would be appreciated
driver side will start blowing hot air when running AC. and will do just the opposite when running heat. passenger side works fine. you can shut off the truck and restart it and it temporarily corrects the problem.
Upon starting the truck, the mode door seems to cycle from floor to dash to defrost and stays at defrost regardless of switch position. Started IMMEDIATELY after replacing blower moron resistor. Have tried pulling the fuse for various lengths of time, turning off the ac when it gets to the dash position. All to no avail.
Not fixed yet. Blows hot air all the time.
My truck sit for better part of a year an several shops later. But now it's up an running the a/c blower barely blowd cold air. When it went down it worked fine. Any ideas?
all air conditioning and heating is directed thru the defrost vents only. I have not yet had it repaired
air temp varies regardless of slide position.
2003 Buick Rendezvous the heat /AC control panel meltEd from inside replace that and wires second panel only works on 5 wires are good and it did not melt what do you suggest
the problem is heating on ac mode because the actuator are't work
Heat will not switch from windshield to front
Inlet air actuator has failed. Cold air on feet all the time. $1000 + to repair. May trade it off for this price.
Related Items:
A rattling noise may develop from the AC belt tensioner. This can be caused by an internal faul...
The rear door lock actuator has fell off . Dont know where it assemble or fasten to.
i can only get cold air???? it will blow out of defrost but it is only cold same in dash vents...
my ac wont switch from defrost
The daytime running lights are prone to burning out. Our technicians tell us that the light s...

Related Content