Why is my AC clutch not engaging?

If the compressor clutch doesn’t engage; that usually means there’s an electrical or mechanical problem with the compressor. Even if you just filled up the AC system with refrigerant, if the AC compressor can’t operate correctly you’ll get warm air.

Why is my AC compressor not working in my car?

There are several things that can cause electrical problems for your car’s air conditioning. These can include failed switches, a blown fuse, a problem with the control module or something else. Fuses can short out and make the A/C stop working or a loose connection can create an electrical short that is easily fixed.

How do you fix an air compressor that won’t start?

If the compressor won’t start with air in tank, replace the check valve. If the compressor won’t start with an empty air tank, replace the pressure switch if it isn’t activating the pump motor. Replace the pump motor if it doesn’t start when activated by the pressure switch.

How do I know if my AC clutch is bad?

Symptoms of a Bad AC Compressor Clutch

Higher Cabin Temperatures.
Loud Noises.
Clutch Stopped Moving.
Inability to Turn Air On or Off.
Leaking Refrigerant.

How can I tell if my AC compressor clutch is bad?

With the AC off, the clutch does not spin. When you turn the AC on, the clutch can make a momentary click and starts spinning with the belt and pulley. If the clutch does not engage, or if it makes a screeching or whining sound when it does, the compressor needs to be serviced.

What does it mean when your AC compressor does not spin?

It is an ominous sign when the clutch engages but the compressor does not spin. Changing the compressor clutch could be the only solution in this case. A bad AC compressor clutch needs immediate fixing. A delay can cause serious damage to the air conditioning system and the engine.

Why is the pulley on my AC compressor not working?

Check the front side of the clutch to examine its condition. Also, find out whether the clutch and the pulley are spinning. If only the pulley is rotating, the compressor clutch is having an issue, which could be stemming from several sources – a blown fuse, bad clutch oil, low-pressure lockout, or an open wire in the oil.

What happens if your air conditioner compressor gets stuck?

The AC compressor is the most integral part of the air conditioning system which is responsible for pressurizing the refrigerant and its distribution. In case there is any problem with the AC compressor, your car’s AC will not deliver cold air and may even cause the engine to seize if the compressor gets stuck.

How to troubleshoot an 87-93 Mustang air conditioner?

Click to expand… Air conditioning electrical troubleshooting 87-93 Mustangs. Check out TMoss’s diagram I posted. Anytime the clutch is energized, the black/yellow clutch power wire should show 12 volts or whatever the battery voltage is measured at the battery.

What causes an AC compressor to not engage?

If the clutch doesn’t engage, the problem could be a blown fuse, an open in the wire to the clutch coil, a bad clutch coil, a poor ground, or a low pressure lockout. AC compressor clutches receive power in a number of ways. They can activate through a relay that’s energized directly by a proper condition of the low and high pressure switches.

Why is my air conditioner not kicking on?

A/C Compressor will not come on. I replaced the CCRM located inside the passenger side inner fender, the A/C control head. The A/C is fully charged. Also, the Coolant fan will not continue to stay on when the Defroster or Max air is turned on.

Why is the a / C clutch on my Mustang not working?

No 12 volts on the green/purple wire, the A/C control switch is bad or the power to the switch is bad. The next step is valid only if you are sure there is sufficient refrigerant change to make the system operate.