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:

More AC issues

Thread Tools
 
Search this Thread
 
Old Apr 24, 2019 | 01:40 PM
  #1  
Evan Benson's Avatar
Evan Benson
Thread Starter
Heel & Toe
 
Joined: May 2017
Posts: 19
Likes: 1
From: Minnesota
Default More AC issues

I replaced the entire AC system last year, it worked great for awhile but now it is giving me issues again. I had a shop vacuum/recharge it two days ago. Now the only time it blows cold is after I drive it and let it sit for 2 hours. It will then blow cold for about 5 minutes then back to warm air. There are no leaks in the system. Any ideas on what could cause this?

I did just install long tube headers but they are not that close to the ac lines, I have the closest low pressure line to the header wrapped in heat shield.

TIA
Reply
Old Apr 24, 2019 | 06:02 PM
  #2  
STRMLNE's Avatar
STRMLNE
Melting Slicks
 
Joined: Oct 2002
Posts: 2,515
Likes: 441
From: Arizona
Default

What do you mean by “entire ac system”? What was replaced?
Reply
Old Apr 24, 2019 | 09:38 PM
  #3  
ncali's Avatar
ncali
Pro
Conversation Starter
All Eyes On Me
Liked
 
Joined: Nov 2018
Posts: 674
Likes: 102
Default

There is what is called an orifice tube in the line right before the dryer. Usually after a compressor failure that tube w3ill get clogged with debris.
you can only get to it after you evacuate the system. If it is clogged the system will not cool. should have been checked during the service
Reply
Old Apr 24, 2019 | 09:40 PM
  #4  
STRMLNE's Avatar
STRMLNE
Melting Slicks
 
Joined: Oct 2002
Posts: 2,515
Likes: 441
From: Arizona
Default

Yeah. That’s why I asked what was replaced. “Entire system” needs to be explained.
Reply
Old Apr 24, 2019 | 11:53 PM
  #5  
tblu92's Avatar
tblu92
Le Mans Master
20 Year Member
Conversation Starter
 
Joined: Aug 2005
Posts: 5,375
Likes: 328
From: CA.
St. Jude Donor '13-'14-'15
Default

Yes the orifice tube may be clogged An easy fix for a shop
LT headers also often overheat the A/C lines On my 2002 car I had to bend the A/C lines to be at least 1" away from th header tubes---Be gentle you don't want to break the A/C line Wrapping it is not enough it needs to be further away like 1 "
Reply

Get notified of new replies

To More AC issues





All times are GMT -4. The time now is 07:08 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