No hot air HVAC issues.
Thread Starter
Instructor
Joined: Jun 2015
Posts: 245
Likes: 10
From: Kansas City (Lees Summit) Missouri
No hot air HVAC issues.
In the summer I was having a problem with the AC blowing hot air and replaced both actuators and the control unit with a good used one. All three were bad. This system started acting up again not long after. Im getting nothing but cold air now. Reset by pulling fuses three times and now tried disconnecting the battery neg cable. No change. Still cold.
Is it possible to switch to a manual control? I searched and didn't see much. Is my car breaking the auto controllers? Are grounds a common problem with the HVAC system? Thanks all
Is it possible to switch to a manual control? I searched and didn't see much. Is my car breaking the auto controllers? Are grounds a common problem with the HVAC system? Thanks all
Thread Starter
Instructor
Joined: Jun 2015
Posts: 245
Likes: 10
From: Kansas City (Lees Summit) Missouri
Got two HVAC codes, B0441 and B0446, left and right actuators out of range. Both are History codes and have a C next to them. These were present before I replaced the actuators IIRC
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)
Joe Kucinski
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!
Verdad Gallardo
Top 10 Corvettes Coming to Mecum Indy 2026!
Brett Foote
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
When the HVAC system runs through its RESET/CALIBRATION sequence,,,,,,,,,,,,, You need to see if the actual SHAFT that moves the temp damper door rotates through its total range of movement... If you monitor the DRIVERS SIDE actuator, its the easiest to see and watch it cycle. IF,,,,,,,,,,,,, It doesnt run through the complete range of damper motion movement,,, you need to figure out what is wrong.
Either the actuator isnt working correctly OR the damper door is hanging up and unabel to fully cycle through it range of motion. You MUST determine what is causing the ERROR to happen!!
BC
Either the actuator isnt working correctly OR the damper door is hanging up and unabel to fully cycle through it range of motion. You MUST determine what is causing the ERROR to happen!!
BC
Thread Starter
Instructor
Joined: Jun 2015
Posts: 245
Likes: 10
From: Kansas City (Lees Summit) Missouri
Yea, thinking the problem may be the drivers actuator again. I'm not hearing the damper closing like I would expect. I just hear both actuators buzzing their normal routine. Wonder if my new actuator just broke? Planning to pull the dash off again to see them clearly working. Anyone know if you can see the damper by looking through the kick panel?
I bought another HVAC control and it showed up not working. Got to mail it back. Thanks for the feedbacks. Really helps me think through this.
I bought another HVAC control and it showed up not working. Got to mail it back. Thanks for the feedbacks. Really helps me think through this.
Last edited by WildRide357; Nov 2, 2015 at 05:09 PM.
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
You can see the drivers side actuator operate from under the drivers side dash. Just remove the close out panel and look UP at the air box.
See if the actual rod/shaft moves when the actuator moves
BC
See if the actual rod/shaft moves when the actuator moves
BC