• Mustang Forums
  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L Mustang Tech

Air conditioning problems

  • Thread starter Thread starter Rekokulous
  • Start date Start date May 29, 2005
R

Rekokulous

New Member
Mar 30, 2005
37
0
0
May 29, 2005
#1
  • May 29, 2005
  • #1
I just finished my PI swap a couple days ago and my AC hasn't worked since. I did some wire chasing under the hood. I chased the compressor wires to the engine harness disconnect. So after that I figured that it was low on coolant after being moved around a bunch (not disconnected). So I went to walmart and picked up some freon and shorted the low pressure cut off sensor. But when I start the car with the AC on the pump only turns on for about a second and a half. So I hooked up the Freon anyway and started and turned off my engine about 20 times with no good results.

Whats the problem?
 
0

02GT/65coupe

New Member
Nov 1, 2003
66
0
0
alabama
May 30, 2005
#2
  • May 30, 2005
  • #2
i just went through the same problem with my ac. i didn't use it all winter long and i started to use it the other day since it finally got warm here in new jersey and nothing. it would only stay on for about 4 sec at the most. mine was under warranty so i took it up there and they said that the cycling switch was leaking and i can't remeber what all had to be replaced but they replaced it, pressure tested it and refilled it and it works like a champ again. my girl keeps pointing at me when i put it on max. lol.
 

Mike97gt

it doe snot
Founding Member
Jan 26, 1999
10,633
7
89
the people's republic of massachusetts
May 30, 2005
#3
  • May 30, 2005
  • #3
Rekokulous said:
I just finished my PI swap a couple days ago and my AC hasn't worked since. I did some wire chasing under the hood. I chased the compressor wires to the engine harness disconnect. So after that I figured that it was low on coolant after being moved around a bunch (not disconnected). So I went to walmart and picked up some freon and shorted the low pressure cut off sensor. But when I start the car with the AC on the pump only turns on for about a second and a half. So I hooked up the Freon anyway and started and turned off my engine about 20 times with no good results.

Whats the problem?
Click to expand...

ok there is a lot fo things that could be wrong. i would bet it's low on freon. but remember when you fill it you need too be atleast close too the amount called for.

first thing. did you disconect any a/c lines when you did the swap.
 
You must log in or register to reply here.

Similar threads

F
2004 Mustang GT – Fuel Pump Not Priming
  • Fayio
  • Apr 22, 2026
  • SN95 4.6L Mustang Tech
Replies
7
Views
163
SN95 4.6L Mustang Tech Apr 27, 2026
n0v8or
N
T
Losing Refrigerant rapidly on my 98 Mustang GT
  • TekoSn95
  • Jun 21, 2025
  • SN95 4.6L Mustang Tech
Replies
8
Views
312
SN95 4.6L Mustang Tech Aug 17, 2025
TekoSn95
T
G
2005 Mustang GT AC cycling on and off every minute
  • GeorgeSwadling
  • Jul 12, 2025
  • 2005 - 2009 Specific Tech
Replies
0
Views
178
2005 - 2009 Specific Tech Jul 12, 2025
GeorgeSwadling
G
F
AC Compressor Power & Contour Fans
  • Fri Guy
  • Aug 27, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
9
Views
317
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Aug 27, 2025
Fri Guy
F
A
Strange AC issue
  • Adanesahde
  • May 3, 2025
  • SN95 4.6L Mustang Tech
Replies
7
Views
346
SN95 4.6L Mustang Tech May 3, 2025
Mcmahst
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1996 - 2004 SN95 Mustang -General/Talk-
  • SN95 4.6L Mustang 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?