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1997 C5 with A/C issue

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Old Jun 11, 2016 | 02:58 PM
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Default 1997 C5 with A/C issue

Hi all, My A/C works great on the passenger side but not on my side. Is there anyway to troubleshoot the controls? Any help would be great. Thanks
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Old Jun 11, 2016 | 03:30 PM
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Are there any codes?
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Old Jun 11, 2016 | 03:35 PM
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No Codes. The problem is that I can not adjust the temp on the driver side. It's been set at 70 for years. Now that the weather has changed I noticed it wont adjust. The passenger side works just fine. Nice cold air. And it doesn't matter if it is in manual or auto mode. No change.
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Old Jun 11, 2016 | 04:27 PM
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Probably the actuator ... You might try to recalibrate...
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Old Jun 11, 2016 | 06:08 PM
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Thanks for that. Is it a motor or vacuum actuator. And how would one calibrate it. And where is it...lol Not really in to mood to tear the dash apart.
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Old Jul 7, 2016 | 05:32 PM
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My 04 just started having the same issue. Cold on the passenger side and hot on my side. Waiting on a response also
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Old Jul 7, 2016 | 06:48 PM
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Originally Posted by splattt7272
Thanks for that. Is it a motor or vacuum actuator. And how would one calibrate it. And where is it...lol Not really in to mood to tear the dash apart.
C5 HVAC actuator relearn procedure…

1.) Clear the DIC's and be sure your ac and car is off
2.) Go to your passenger side floor board
3.) Find the fuse box access panel
4.) Pull the top of the panel out a little to break the top velcro strips loose
5.) Pick up on the bottom of the panel and it should come free
6.) Locate Fuse # 27, it's the 10 amp fuse
7.) Pull it
8.) Wait a FULL 60 seconds
9.) Put back in the # 27 fuse (be sure its good)
10.) Put the bottom of the fuse box access panel in first
11.) Push the top of the fuse box access panel to secure
12.) CRANK her up
13.) Car will recalibrate the actuator, about a minute

IF the actuator gears are stripped then you have to repair or replace them...

Last edited by 73Corvette; Jul 7, 2016 at 06:49 PM.
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Old Jun 10, 2020 | 01:55 PM
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HI, thanks. I already replaced both my blend door quite awhile ago, total pain. I was having issues with hot air on drivers side again....I thought I did the fuse 27 trick, but did it again, and wow, its fixed!
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Old Jun 10, 2020 | 03:20 PM
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Originally Posted by harrykerry
HI, thanks. I already replaced both my blend door quite awhile ago, total pain. I was having issues with hot air on drivers side again....I thought I did the fuse 27 trick, but did it again, and wow, its fixed!
The one time I had an issue, this worked for me. Just another anomaly in the C5 that we have to cope with.
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Old Jun 10, 2020 | 03:22 PM
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Right now, everything is working flawlessly, runs great, ac works,. no codes. not sure if I should drive it or just look at it..ha...
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