EKjimmy
New Member
Hi,
My gf's SV6 ute has had a recurring problem with the AC. The first time, only the dash/face vents would work. After trying a vent flap relearn, it would only blow hot air through the windscreen demisters - position and temperature couldn't be changed.
I thought it was the HCM/HVAC module which had failed, so I replaced that - everything started working again except for the footwell vents. I tried a relearn again, and it did the same thing - hot air through windscreen demisters only.
After having a search on the forum it seems that the hot air through the demisters is a default limp mode sort of deal, does that sound right?
From the threads and posts I've read, it looks like a possible cause is one of the vent flap actuators is stuffed.
Has anyone had the same thing happen - eg same vents not working beforehand means x actuator is the one at fault?
I just want to verify the problem as much as I can before buying a new actuator and stuffing around under the dash, and I'm stuffed if I'm going to pay a dealership to go through the exact same guess work and then try to sell me a $600 repair when I can do it myself.
I can't hear any particularly loud clicking like a broken plastic cog would make, however I'm wondering if one has the teeth completely sheared off it wouldn't make any unusual noises as it wouldn't hit anything.
Cheers,
James
My gf's SV6 ute has had a recurring problem with the AC. The first time, only the dash/face vents would work. After trying a vent flap relearn, it would only blow hot air through the windscreen demisters - position and temperature couldn't be changed.
I thought it was the HCM/HVAC module which had failed, so I replaced that - everything started working again except for the footwell vents. I tried a relearn again, and it did the same thing - hot air through windscreen demisters only.
After having a search on the forum it seems that the hot air through the demisters is a default limp mode sort of deal, does that sound right?
From the threads and posts I've read, it looks like a possible cause is one of the vent flap actuators is stuffed.
Has anyone had the same thing happen - eg same vents not working beforehand means x actuator is the one at fault?
I just want to verify the problem as much as I can before buying a new actuator and stuffing around under the dash, and I'm stuffed if I'm going to pay a dealership to go through the exact same guess work and then try to sell me a $600 repair when I can do it myself.
I can't hear any particularly loud clicking like a broken plastic cog would make, however I'm wondering if one has the teeth completely sheared off it wouldn't make any unusual noises as it wouldn't hit anything.
Cheers,
James
