HVAC problems
Thread Starter
Heel & Toe
Joined: May 2018
Posts: 16
Likes: 1
HVAC problems
I have been trying to access JR-Vette's link on actuator reindexing but the link must be broken. From what I've read here, it sounds like the real fix is to replace the HVAC controller in my '99 c5 with a 2001 or later controller, to fix the problem of the actuator being told to try to close the door to far. If this is right, can anyone tell me the correct part number for the 2001 or later controller?
Drifting
Joined: Feb 2018
Posts: 1,511
Likes: 385
From: Punta gorda Florida
Having the same problem for the second time in a year. This time not as bad. Not blowing strong on drivers side and temp not as cold as passenger side. Does not happen all the time. Last time had controller and actuator replaced. No problem with passenger side at all
Team Owner
Joined: Dec 1999
Posts: 174,312
Likes: 1,217
From: Here
Pilot of Beer Force 1
Tampa Regional Coordinator
CI 4-5-6-7-8 Veteran
Organizer St. Jude Fundraiser
I believe in the Beer Fairy
I have been trying to access JR-Vette's link on actuator reindexing but the link must be broken. From what I've read here, it sounds like the real fix is to replace the HVAC controller in my '99 c5 with a 2001 or later controller, to fix the problem of the actuator being told to try to close the door to far. If this is right, can anyone tell me the correct part number for the 2001 or later controller?
oh yeah, don't overpay for a head unit, some people want waaaaaay to much for them
Team Owner
Joined: Dec 1999
Posts: 174,312
Likes: 1,217
From: Here
Pilot of Beer Force 1
Tampa Regional Coordinator
CI 4-5-6-7-8 Veteran
Organizer St. Jude Fundraiser
I believe in the Beer Fairy
as for the re-indexing procedure if you are gonna pull them out just replace them
Le Mans Master
Joined: Sep 2003
Posts: 8,812
Likes: 2,029
From: eastern NC
Reindexing HVAC Actuators on the C5 Corvette
I copied down the procedures for reindexing the actuators a while back just to be sure I had a copy if I needed them...
Never know when you might need it.
Good luck... GUSTO
Never know when you might need it.
Good luck... GUSTO
Instructor
Joined: Apr 2017
Posts: 159
Likes: 72
From: Kansas
Team Owner
Joined: Dec 1999
Posts: 174,312
Likes: 1,217
From: Here
Pilot of Beer Force 1
Tampa Regional Coordinator
CI 4-5-6-7-8 Veteran
Organizer St. Jude Fundraiser
I believe in the Beer Fairy
oh yeah, one more very important thing...make sure the new actuators work BEFORE you put that dash back together....you can plug the head unit in and turn the key to get everything running, run them through the various functions....didn't happen to me but my buddy had one of his techs do a new actuator install and put it back together to find out it didn't work,,,,he fixed it on his own time 
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
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
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!
Michael S. Palmer
10 Revolutionary 'Corvette Firsts' Most People Don't Know
Joe Kucinski
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2
Michael S. Palmer
2027 Corvette vs The World: Every C8 vs Its Closest Competitor
Joe Kucinski
10 Most Common Corvette Problems of the Last 20 Years!
Joe Kucinski
Safety Car
Joined: Mar 2017
Posts: 3,759
Likes: 935
From: Orlando Florida
Now you tell us this story? Just when my new to me dash is back in place? ;-)