New LS1 Owners - Newbie Tech Basic Technical Questions & Advice
Sponsored by:
Sponsored by:

A/c Problem

Thread Tools
 
Search this Thread
 
Old Jun 24, 2004 | 11:36 PM
  #1  
ABNRNGR (Aka Dean)'s Avatar
Thread Starter
TECH Regular
iTrader: (1)
 
Joined: Nov 2001
Posts: 443
Likes: 0
From: Houston
Default A/c Problem

What's wrong with my system if the compressor cut's on and off every 30-45 seconds? The A/C is still cold and seems to be working properly.
Reply
Old Jun 24, 2004 | 11:52 PM
  #2  
MM98's Avatar
TECH Fanatic
20 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (13)
 
Joined: Dec 2003
Posts: 1,455
Likes: 2
From: Okc,OK
Default

Do you mean while you're in the car it will stop blowing air all together & after a few moments it will start blowing again??? If so it sounds like the problems not with your compressor, but more along the lines of the blower motor or the htr/ac control head.
Reply
Old Jun 25, 2004 | 12:20 AM
  #3  
Tom@SpeedInc's Avatar
Banned
iTrader: (5)
 
Joined: Apr 2003
Posts: 1,890
Likes: 0
From: Chicago
Default

Originally Posted by ABNRNGR (Aka Dean)
What's wrong with my system if the compressor cut's on and off every 30-45 seconds? The A/C is still cold and seems to be working properly.
Probley undercharged, this condition isn't good for the compressor or the clutch, the clutch is getting cycled repeatedly and will soon slip and burn up the compressor is getting deprived of lubrication as PAG oil flows with refrigerant that is absent.

A vehicle will leak refrigerant from the DAY its new, sealed system my ***. It only leaks in a small amount though through seals and schrader valves enough though that in 4-5 years system is undercharged.

You should get your AC evacuated recharged and add dye by a professional.
Reply
Old Jun 25, 2004 | 01:57 AM
  #4  
ABNRNGR (Aka Dean)'s Avatar
Thread Starter
TECH Regular
iTrader: (1)
 
Joined: Nov 2001
Posts: 443
Likes: 0
From: Houston
Default

Originally Posted by fullfloatingHD
Probley undercharged, this condition isn't good for the compressor or the clutch, the clutch is getting cycled repeatedly and will soon slip and burn up the compressor is getting deprived of lubrication as PAG oil flows with refrigerant that is absent.

A vehicle will leak refrigerant from the DAY its new, sealed system my ***. It only leaks in a small amount though through seals and schrader valves enough though that in 4-5 years system is undercharged.

You should get your AC evacuated recharged and add dye by a professional.
Could it be undercharged and still blow cold air as if no problems? Also it's just the compressor recycling. The air doesn't stop.
thanks
Reply
Old Jun 25, 2004 | 08:38 AM
  #5  
hourang's Avatar
TECH Fanatic
iTrader: (6)
 
Joined: Nov 2003
Posts: 1,516
Likes: 0
From: Commerce Twp, MI
Default

not enough refrigerant in the system, the system cuts out when its low. i would try recharging it, if it comes back later, you have a leak.
Reply
Old Jun 25, 2004 | 10:20 AM
  #6  
ABNRNGR (Aka Dean)'s Avatar
Thread Starter
TECH Regular
iTrader: (1)
 
Joined: Nov 2001
Posts: 443
Likes: 0
From: Houston
Default

thanks
Reply
Old Jun 26, 2004 | 05:07 AM
  #7  
Tom@SpeedInc's Avatar
Banned
iTrader: (5)
 
Joined: Apr 2003
Posts: 1,890
Likes: 0
From: Chicago
Default

Originally Posted by ABNRNGR (Aka Dean)
Could it be undercharged and still blow cold air as if no problems? Also it's just the compressor recycling. The air doesn't stop.
thanks
blow cold in optimal conditions 75* day 30mph cruise yeah it probley will. Sit and idle in traffic on a 90* day and thoes vents are gonna blow 90*.

Recharged but by a professional, these backyard guys who recharge cars don't even vacuum and charge with 16oz. cans always end up bringing their car to shop.
Reply
Old Jun 26, 2004 | 11:59 AM
  #8  
hourang's Avatar
TECH Fanatic
iTrader: (6)
 
Joined: Nov 2003
Posts: 1,516
Likes: 0
From: Commerce Twp, MI
Default

most people dont have access to a compressor or other tools required to vacuum out the system. why would you have to vacuum it out to add a little refrigerant?
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

 Brett Foote
story-1

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-2

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-3

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-4

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-5

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-6

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-7

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-8

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-9

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
Old Jun 26, 2004 | 02:21 PM
  #9  
SMOKIN01TA's Avatar
TECH Veteran
iTrader: (10)
 
Joined: Oct 2003
Posts: 4,112
Likes: 1
From: McComb, MS
Default

Originally Posted by hourang
most people dont have access to a compressor or other tools required to vacuum out the system. why would you have to vacuum it out to add a little refrigerant?
you dont, addin a lil wont hurt nothing. keep in mind compressors engage and disengage all the time unless its on wide open.
Reply
Old Jun 27, 2004 | 11:25 AM
  #10  
hourang's Avatar
TECH Fanatic
iTrader: (6)
 
Joined: Nov 2003
Posts: 1,516
Likes: 0
From: Commerce Twp, MI
Default

Originally Posted by SMOKIN01TA
you dont, addin a lil wont hurt nothing. keep in mind compressors engage and disengage all the time unless its on wide open.
thats what i thought. if the compressor is kicking on and off constantly then you are low on refrigerant, the pressure decreases when the a/c kicks on, and the system has a failsafe to kickoff the compressor when the pressure is too low, so it kicks on, then kicks off when the pressure is low, then the pressure comes back up and kicks on again, adding more refrigerant should stop this now if this fixes it or not depends soley on how bad of a leak you have, the refrigerant usually has a leak sealer in it and just filling it up can stop it, but it depends.
Reply




All times are GMT -5. The time now is 10:48 PM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-04 18:13:20


VIEW MORE
story-1
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-2
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-3
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-4
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-5
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-6
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-7
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-8
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-9
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE