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Ac compressor not engaging - 2006 GMC Envoy

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When I recently turned my fan to either defrost or heat/defrost the engine acts like it wants to stall and the AC indicator begins to blink. No other heater setting creates this problem. After blinking...


THE DEFROST SETTING CALLS FORE THE AC COMPRESSOR TO ENGAGE TO DRY THE HUMIDITY. THE CAR IS STALLING PERHAPS BECAUSE OF THE LOAD PUT UPON THE ENGINE BY THE ENGAGEMENT OF THE AC COMPRESSOR. THE COMPRESSOR MAY BE LOCKED UP

Mar 08, 2015 | AC Cars & Trucks

1 Answer

Jaguar x type air con compressor wont engage


ac compressors are protected by high pressure and low pressure switches in the system. If the ac compressor will not engage it may be --no gas--too much gas ---blockage in the system--- no cooling fan for the condensor-- burnt out clutch behind the pulley
have an accredited ac specialist check it out.

Dec 30, 2014 | Jaguar Cars & Trucks

2 Answers

Air conditioner blows hot but freon is full


Your compressor could be faulty. Check to see if it engages when you press the AC button with the car running.

Aug 05, 2014 | 2004 Ford Freestar

1 Answer

A/c compressor won't engage 2005 equinox


most likely the ac compressor will not engage because it needs a freon charge.The simple way to tell if that is why without having special equipment is to find the pressure switch located on the low pressure line and jump the switch with a peice of wire. if the clutch engages when you jump the switch then you need to charge the ac with 134 a freon

Feb 22, 2014 | Cars & Trucks

1 Answer

AC compressor not engaging on 2003 Explorer Eddie Bower


the compressor is protected by a pressure switch to prevent from damage of the compressor when ever the prion gas is leaking there no pressure on the system so the compressor will not engage check for the linking of the system

Apr 28, 2013 | 2003 Ford Explorer

1 Answer

Ac does not engage


Most vehicles have a low pressure switch that prevents the compressor from engaging so as to prevent damage to the compressor. You need to place a gauge set onto your AC to read the high and low sides of the system. Probably have lost enough gas(R134) over time to prevent the compressor from engaging. You can jump the pressure switch to check it with a simple jumper wire.

Apr 14, 2012 | 2000 Chevrolet Malibu

2 Answers

AC does not work. Compressor will not engage Blower only blows on high speed. Is the two a related problem? Where should I look to solve the problem


The most common reason for the compressor not engaging is low refrigerant pressure. The ac system has a safety switch that will not allow the compressor to engage when there is not enough refrigerant pressure because the the refrigerant carries the compressor lubricant throughout the system. Have the system checked for proper charge. You probably have a leak. The fan is probably a separate issue.

Jun 19, 2010 | 2002 Ford Taurus

1 Answer

AC blowinghot air


Locate wires coming from compressor clutch and trace to nearest plug that you can unplug. Turn on A/C to max cooling. If clutch not engaged (center of compressor drive pulley not spinning with pulley), unplug compressor clutch wires and use multimeter to check voltage going to compressor clutch. If voltage is around 12 volts or more, then clutch should be engaged when plugged in. Plug clutch wires back in (with motor still running and ac set to max). If clutch still not engaged, then clutch definitely bad because 12V signal should engage it.

May 08, 2010 | 2002 Lincoln LS

2 Answers

AC Compressor not engaging on 2000 Chevy Impala. Fuses and AC relay okay. No power at compressor. Need wiring diagram. Also need to know if compressor requires 12v for operation. If not what should voltage...


When your R-134a runs too low it will NOT engage the compressor. You need to refill your a/c system before the clutch will engage, I also suggest finding the leak.

Apr 20, 2010 | 2000 Chevrolet Impala

1 Answer

Should the AC compressor clutch engage when the


yes. the ac removes moisture from the cabin of your car. if it is not engaging that is why your windows are fogging up. you need to have the ac pressure checked. you may just need a recharge.

Jan 02, 2010 | 2002 Ford Taurus

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