How to tell if my A/C compressor is working??
Thread Starter
Registered User
Joined: Jan 2006
Posts: 705
From: Waco, Texas
How to tell if my A/C compressor is working??
Dont hear/feel any clicks when I turn it to A/C... (and the air isnt colder either, there was a few leaks I have fixed in the lines where they where just lose) but besides that I dont even think my compressor is working and I cant hear **** over hooker headers,ypipe and borla exhaust
Registered User
Joined: Dec 2004
Posts: 66
From: Old Bridge, NJ
Re: How to tell if my A/C compressor is working??
Just look unde the hood! It should rotate! If it's not... then its not working!
... When you turn it on... the idle should jump kind of... if it was leaking, it probably all ready dont have normal pressure.. there is pressure sensor... if the pressure sensor reading low pressure it not going to work... chek the pressure.
Hope you can understand me and hope I helped you.
Good luck!
... When you turn it on... the idle should jump kind of... if it was leaking, it probably all ready dont have normal pressure.. there is pressure sensor... if the pressure sensor reading low pressure it not going to work... chek the pressure.Hope you can understand me and hope I helped you.
Good luck!
Thread Starter
Registered User
Joined: Jan 2006
Posts: 705
From: Waco, Texas
Re: How to tell if my A/C compressor is working??
Originally Posted by RedZ28Beauty
Just look unde the hood! It should rotate! If it's not... then its not working! ... When you turn it on... the idle should jump kind of... if it was leaking, it probably all ready dont have normal pressure.. there is pressure sensor... if the pressure sensor reading low pressure it not going to work... chek the pressure.
Hope you can understand me and hope I helped you.
Good luck!
... When you turn it on... the idle should jump kind of... if it was leaking, it probably all ready dont have normal pressure.. there is pressure sensor... if the pressure sensor reading low pressure it not going to work... chek the pressure.Hope you can understand me and hope I helped you.
Good luck!
Registered User
Joined: Dec 2004
Posts: 66
From: Old Bridge, NJ
Re: How to tell if my A/C compressor is working??
No! I don't think the PCM even control AC! there is kit with guges... it cost about $75 (sow one @ Advance Auto Parts) you connect it to the velves on the ac hoses and it show u high and low pressure... with same kit you add freon to the system...
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Joined: Nov 1998
Posts: 71,124
From: Hell was full so they sent me to NJ
Re: How to tell if my A/C compressor is working??
The PCM reads the AC evap temperature, the AC refrigerant pressure, the AC clutch status, and the AC request signal from the HVAC controls. The PCM controls the AC clutch relay (pin D8). You can read AC refrigerant pressure with a scanner off the PCM.
Thread Starter
Registered User
Joined: Jan 2006
Posts: 705
From: Waco, Texas
Re: How to tell if my A/C compressor is working??
Originally Posted by Injuneer
The PCM reads the AC evap temperature, the AC refrigerant pressure, the AC clutch status, and the AC request signal from the HVAC controls. The PCM controls the AC clutch relay (pin D8). You can read AC refrigerant pressure with a scanner off the PCM.
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