• Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 1994 - 1995 Specific Tech

proper way to get a/c working?

  • Thread starter Thread starter 94GTMOOSE
  • Start date Start date May 15, 2009

94GTMOOSE

Member
Jun 27, 2005
303
0
16
jersey shore
May 15, 2009
#1
  • May 15, 2009
  • #1
about 2 1/2 years ago i was driving and my a/c compressor (or just the clutch) seized up and i snapped a belt. So i went to the junk yard and bought a used replacement and put it on replaced the belt and started driving the car again. I never replaced the freon, or put a vac on it to pressureize the system.

Now that i am so fat that even with the windows down and the sunroof open i still sweat like a hooker in confession, i am going to try to get the system running. I did do a few searches and answered alot of my questions. I do however still wanna put down my plan of action and see what you think.

i plan on going to harbor freight and buying this tool Air Vacuum Pump with R134A and R12 Connectors

Seems like a good deal for 9.99.

Then i planned on buying two or three cans of r34a.

now my question is this do i need to buy anthing else. and is there a special method to getting this to go smoothly.
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
31,179
33
129
May 15, 2009
#2
  • May 15, 2009
  • #2
I would go with the Robinaire pump. Or just have a shop vac it down for you.

We don't know what state the system is in now or why you need to recharge it, so it's tough to make recommendations.
 

94GTMOOSE

Member
Jun 27, 2005
303
0
16
jersey shore
May 16, 2009
#3
  • May 16, 2009
  • #3
the system was working fine till the clutch locked up. so i replaced the compressor with the clutch on it from a junk yard. it was just easier to do it that way. so all the freon leaked out. i think it should be fine if i vac it with that tool and charge it up.
 

HISSIN50

"How long does it take to get help in here?
15 Year Member
Nov 29, 1999
31,179
33
129
May 16, 2009
#4
  • May 16, 2009
  • #4
Do what you want to do but you asked about doing it right. You need to see about 29.5" in order to boil moisture out of the system. Let us know if your manifold gauge shows that much vacuum. If not, have a shop vacuum it for you. It should cost you very little. See about having them let it hold the vac for 30-45 mins to ensure the system is sealed.
 
You must log in or register to reply here.

Similar threads

T
A/C Compressor Reliability with Supercharger Setup – Need Advice
  • ThotTrap
  • Aug 29, 2025
  • 2015 - 2023 (S550) Mustang -General/Talk
Replies
1
Views
160
2015 - 2023 (S550) Mustang -General/Talk Aug 29, 2025
Noobz347
Progress Thread Progress Thread- From6to8's 95 GT/Saleen Supercharged 331 install
  • from6to8
  • Mar 22, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 2
Replies
24
Views
768
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- May 6, 2026
from6to8
M
Progress Thread mnky99 2001 V6 evap core, ac compressor, heater core replacement
  • mnky99
  • Sep 5, 2025
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
1
Views
459
1996 - 2004 SN95 Mustang -General/Talk- Sep 5, 2025
mnky99
M
6
Hey all,I’m putting together a 302 for my 1968 Mustang and wanted to post the combo + some questions to make sure I’m not missing crucial
  • 68_Disgustang
  • Feb 22, 2026
  • 1965 - 1973 Classic Mustangs -General/Talk-
Replies
4
Views
749
1965 - 1973 Classic Mustangs -General/Talk- Jun 20, 2026
gray owl
G
M
Too much for me to repair in my current housing situation
  • My Drama Magnet 04 Gt
  • Apr 1, 2026
  • The Welcome Wagon
Replies
8
Views
254
The Welcome Wagon Apr 14, 2026
Noobz347
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 1994 - 1995 Specific Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?