94 limited A/C issues - JeepForum.com
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep Grand Cherokee & Commander Forums > ZJ Grand Cherokee Forum > 94 limited A/C issues

JKS Grand Cherokee WJ, Adjustable Front Trackbar 1"-6Teraflex JK HD Hinged Carrier & Adjustable Spare Tire FREE, FREE, FREE EVENT!! Save big on Lockers now till Apri

Unread 05-09-2013, 08:18 PM   #1
Registered User
1994 ZJ 
Join Date: Oct 2011
Posts: 13
94 limited A/C issues

I haven't worked with many A/C systems and what Im going through now is a first. Ive kind of been tossing money at it when I can but Im tired of it. The A/C has never worked since ive had it but was told that it worked great before I got it. Ive put a new compressor, clutch, pressure switch, cycle switch, and charged the system to where it needed to be. The clutch is now cycling and its blowing but not very cold. I can tell an improvement but not enough to say it is working. Any ideas for a next step to blow cold? Trying not to spend much more money.

Arvin2427 is offline   Reply With Quote Quick reply to this message
Unread 05-09-2013, 08:59 PM   #2
Registered User
1994 ZJ 
Join Date: Aug 2011
Posts: 2,666
Does the air temperature change when setting the temperature control knob between warm/cold? If not, blend door may not be working properly.
KoreaZJ is offline   Reply With Quote Quick reply to this message
Unread 05-09-2013, 08:59 PM   #3
Registered User
1995 ZJ 
Join Date: Dec 2010
Location: Norman, OK
Posts: 2,311
Its hard to tell with little information. A/C cycling can be normal but the rate of cycling vs ambient temp and blower motor speed is whats important. The hotter it is outside or the higher the blower speed selected the cycling should slow way down or not at all. Also having a set of guages and knowing how to read them is very important too. One last thing would be putting a trusted temp guage in a center vent and run A/C on MAX and check temp, adjust blower speed down to see what the coldest temp possible is. Things to try to get info on (high a low pressure readings comp on & off, discharge air temp out of panel register)

How much refrigerant have you installed, and have you checked for leaks? If the A/C seems to cycle fast then its probably a little low on refrigerant but before you start dumping more in you might try to verify that because it can also cycle from the high pressure cut out switch or a restriction too. If you put more in and cycle rate increases or comp stays off longer then you have a high pressure problem. If the cycling rate decreases or stays comp on longer you may be on the right track with adding a little more refrigerant.
jnicewan is offline   Reply With Quote Quick reply to this message

Quick Reply

Register Now

In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools

Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.