C5 Tech Corvette Tech/Performance: LS1 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

A/C question

Thread Tools
 
Search this Thread
 
Old May 16, 2021 | 03:21 PM
  #1  
gr8diver's Avatar
gr8diver
Thread Starter
Racer
Veteran: Air Force
Liked
Loved
Community Favorite
 
Joined: Nov 2020
Posts: 496
Likes: 105
From: Las Vegas
Default A/C question

The a/c on my 98 coupe is colder coming out of the passenger side vents than it is in the middle and driver door side vents. The volume of pushed air is the same. The mode selector seems to be working fine as I can select different outputs and it changes as expected. I bet the difference is 20 degrees difference.
Anyone have any ideas?
I am going to have the system vacuumed and charged next week when I get back into town since the weather is heating up..
Reply
Old May 16, 2021 | 03:27 PM
  #2  
C5 Diag's Avatar
C5 Diag
Moderator, Tech Contributor
Supporting Lifetime Gold
10 Year Member
Veteran: Air Force
Liked
Community Favorite
 
Joined: Sep 2013
Posts: 15,431
Likes: 3,981
From: Cape Coral, Florida
Default

May be low charge...report back next week.
Reply
Old May 18, 2021 | 08:17 PM
  #3  
redzg's Avatar
redzg
Safety Car
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Mar 2017
Posts: 3,759
Likes: 935
From: Orlando Florida
Default

Dual zone system? Zone selection is the vacuum side of things, temperature is blend doors. You note the passenger side is colder -- considering the time of year, I imagine you're shooting for colder on the driver's side? An actuator reset might fix it, but I'm betting on a new actuator (or two) being necessary.
Reply
Old May 19, 2021 | 09:05 AM
  #4  
TOPCATHR's Avatar
TOPCATHR
Racer
10 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Oct 2010
Posts: 450
Likes: 18
From: NORTHPORT NY
Default

common problem my 98 was low charge.
Reply
Old May 22, 2021 | 09:56 AM
  #5  
grinder11's Avatar
grinder11
Race Director
Liked
Loved
Community Favorite
Top Answer: 1
 
Joined: Oct 2004
Posts: 12,859
Likes: 4,658
Default

I agree with Rob (C5Diag). Cars that are equipped with climate control (I had an '03 Buick LeSabre with CC, and it did the same thing OPs car is doing) seem to blow colder on the Pass. side than drivers side when low on refrigerant. I don't know if manual A/C exhibits this scenario, or not. My C5 with CC also did this, and a recharge took care of it. Good luck, OP......
Reply
Old Jun 5, 2021 | 05:26 PM
  #6  
gr8diver's Avatar
gr8diver
Thread Starter
Racer
Veteran: Air Force
Liked
Loved
Community Favorite
 
Joined: Nov 2020
Posts: 496
Likes: 105
From: Las Vegas
Default

I had the a/c checked..it was about a half pound low....it was filled and blows super cold now. I still say it is colder on the passenger side...
Reply
Old Jun 6, 2021 | 02:28 AM
  #7  
hron61's Avatar
hron61
Burning Brakes
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2014
Posts: 870
Likes: 76
From: The Rainy Side of Washington State
Default

You should buy an A/C Thermometer for automobiles at a parts store
and test all the vents.

Last edited by hron61; Jun 6, 2021 at 02:34 AM.
Reply

Get notified of new replies

To A/C question





All times are GMT -4. The time now is 06:27 PM.

story-0
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-1
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-2
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-3
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-4
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-5
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-6
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-7
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-8
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-9
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE