My AC blows cold and hot but not strong. I recently had a new intake, headers, harmonic dampeners and all gaskets and seals changed. After I got my car back is when I noticed the AC while it blows ice cold, It does not blow strong, it barely comes out. I ran the codes off the DIC, these where the codes that came up.
B0361- left actuactor feedback short to GND
B0367 - Right Actuator feedback open
B0441 - Left actuator out of range
B0446 - Right Actuator out of range
I have been on this forum, youtube, other corvette sites, and they all "for the most part" say the same thing, that the actuator issues normally are cold air switching to hot air and vice versa. I haven't seen anything that says the actuators cause low air pressure. Can the actuators cause low air pressure? What are the chances that both actuators go out at the same time? Any help in deciphering the above codes and a course of action is greatly appreacited.

 

Moved to C5 Tech.

 

These codes are presumably heat blend door actuator related codes (so hot/cold actuators, not vacuum controlled air direction actuators).

Air flow/strength of blower shouldn’t be affected by either type of actuator. The system is fairly simple with a (electronic) blend door moving to vary hot/cold air output inside the heater box. Cars with dual climate having two, one for drivers side and one for passenger. The vacuum actuator flaps similarly get dragged one way or other from the command via the vacuum distribution block in the passengers footwell area (behind glove box) and just direct direction of air flow for upper/feet etc etc.

So while a non functioning vac actuator might disturb air direction, it shouldn’t stop it. I’m not entirely sure however whether at rest (engine off/no vacuum) if they stay in a position that would restrict air from the blower coming out.

Of course you would soon know if you’ve functioning air direction distribution or not.

I assume it is functioning? TBH having just fitted blend doors myself and checking operation with the dash pad off, I myself am surprised that my air blowing out through ducting isn’t stronger. I don’t see anything wrong anywhere with my system and the blower motor is clear/functioning.

I’m unsure as to whether a different blower motor might be stronger.

 

Have you verified that you are not getting airflow in a blend mode with some directed out the heater vents? Do you hear or feel the air flow change from windshield to floor to vents as you change the mode?