A/C compressor not kicking in
Thread Starter
Seasoned Member
Joined: Sep 2010
Posts: 325
Likes: 0
From: Portsmouth,VA
Year: 96
Model: Cherokee
Engine: 4.0 I6
A/C compressor not kicking in
1995 Jeep grand cherokee 4.0 4wd
My compressor is not kicking in when the ac is turned on. plenty of pressure and i just recharged it. hasnt kicked in since I bought it. about 2 weeks ago. and Ideas would be much appreciated. thanks!
My compressor is not kicking in when the ac is turned on. plenty of pressure and i just recharged it. hasnt kicked in since I bought it. about 2 weeks ago. and Ideas would be much appreciated. thanks!
Thread Starter
Seasoned Member
Joined: Sep 2010
Posts: 325
Likes: 0
From: Portsmouth,VA
Year: 96
Model: Cherokee
Engine: 4.0 I6
will do. the relays are interchangeable yea? I have like a thousand spare ones between this one and the other jeep. what if it isnt that? is there anything else other than changing the compressor?
Senior Member
Joined: Jul 2012
Posts: 860
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From: middleburg fl
Year: 1998
Model: Cherokee
Engine: 4.0
grab a meter and check for power to ground at the electrical connection on the compressor
if no power start traceing it backwards. if you do have power and not engaged than likely the clutch. oh and you cant recharge it if it isnt running, as it relies on the compressor running to get the refrigerant to enter the system
if no power start traceing it backwards. if you do have power and not engaged than likely the clutch. oh and you cant recharge it if it isnt running, as it relies on the compressor running to get the refrigerant to enter the system
Thread Starter
Seasoned Member
Joined: Sep 2010
Posts: 325
Likes: 0
From: Portsmouth,VA
Year: 96
Model: Cherokee
Engine: 4.0 I6
gaaaaaaaaaahhhhhh just tried the relay and it was still a no go. I suppose I will have to get a meter. I hope it isnt the clutch. thanks for the help guys
Thread Starter
Seasoned Member
Joined: Sep 2010
Posts: 325
Likes: 0
From: Portsmouth,VA
Year: 96
Model: Cherokee
Engine: 4.0 I6
gaaaaaaaaaahhhhhh just tried the relay and it was still a no go. I suppose I will have to get a meter. I hope it isnt the clutch. thanks for the help guys
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CF Veteran
Joined: Feb 2010
Posts: 12,367
Likes: 23
From: Oroville, CA
Year: 1995
Model: Grand Cherokee
Engine: 4.0 with all of the noise and clatter
It may as simple as the low pressure switch being bad or a blown fuse. Jump the low pressure switch plug and see if the compressor kicks on.
Seasoned Member
Joined: Jun 2010
Posts: 275
Likes: 0
From: Ontario Canada
Year: 1998
Model: Cherokee
Engine: 4.0
grab a meter and check for power to ground at the electrical connection on the compressor
if no power start traceing it backwards. if you do have power and not engaged than likely the clutch. oh and you cant recharge it if it isnt running, as it relies on the compressor running to get the refrigerant to enter the system
if no power start traceing it backwards. if you do have power and not engaged than likely the clutch. oh and you cant recharge it if it isnt running, as it relies on the compressor running to get the refrigerant to enter the system
Senior Member
Joined: Jul 2012
Posts: 860
Likes: 0
From: middleburg fl
Year: 1998
Model: Cherokee
Engine: 4.0
[QUOTE=jeff2285;1909728]i recharge ac systems with the egnine off everyday.............
impressive: my comments were directed to someone without knowledge of a/c systems. you like him will not get a system to charge just by hooking a can up to a system with a standing pressure above the can pressure. you could heat the can or pull a vacuum. but the average joe dosent know this, nor do they have vacuum pumps.
impressive: my comments were directed to someone without knowledge of a/c systems. you like him will not get a system to charge just by hooking a can up to a system with a standing pressure above the can pressure. you could heat the can or pull a vacuum. but the average joe dosent know this, nor do they have vacuum pumps.
CF Veteran
Joined: Mar 2010
Posts: 47,923
Likes: 38
From: Broward County Fl.
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
[quote=kennzz05;1912596]
exactly most here are average joes ,jump low pressure switch then work backwards i dought its got good pressure if you cant get it running to check them....
i recharge ac systems with the egnine off everyday.............
impressive: my comments were directed to someone without knowledge of a/c systems. you like him will not get a system to charge just by hooking a can up to a system with a standing pressure above the can pressure. you could heat the can or pull a vacuum. but the average joe dosent know this, nor do they have vacuum pumps.
impressive: my comments were directed to someone without knowledge of a/c systems. you like him will not get a system to charge just by hooking a can up to a system with a standing pressure above the can pressure. you could heat the can or pull a vacuum. but the average joe dosent know this, nor do they have vacuum pumps.
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