Question about 2002 Chevrolet Venture Passanger

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A/c compressor not cutting in-rest of system operational; fans work etc; thermostat works; hit button/switch to get a/c to come on, clutch on compressor not engaging.

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The a/c compressor will not come on if the 134a refrigerant in your a/c system is low.Have someone put a gauge on the system to check pressure.The fill low side port to check this pressure is between the rad and the engine,open the hood and look there to locate it.If you do need refrigerant DO NOT use any aftermarket refrigerants with an EXPLOSIVE label on them.Those are usually a mix of propane and/or butane.You may not what those flammable produces spraying on you from your a/c system in an accident situation!

Posted on Apr 22, 2017

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Perhaps it is the compressor clutch or a bad earth ?? test it first too see what the probel is and if it lies with the compressor

Posted on May 28, 2010

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Posted on Jan 02, 2017

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1 Answer

Reset 2006 Mercedes GL500 aircon system


have it checked by an accredited ac specialist shop
could be low gas , high gas pressure , condenser fan not working, compressor clutch
thermostat control not operating compressor relay
fuse in the system
ac switch faulty

Oct 23, 2015 | 2006 Mercedes-Benz GL 500

1 Answer

What could cause my 1995 F350 truck AC compressor clutch engages and disengages about every 5 seconds


The intermittent action is a sign that either the low or high pressure switches are working. You need a set of manifold gauges to check both ends of the system out.

Now some systems use an air blend valve under the dash to regulate the A/C temperature with the compressor operating almost constantly. Other systems cut off the a/c compressor to work intermittently to keep the extreme cold from happening and helping to regulate temperatures.

Independent of this is another switch on the a/c tank that prevents freezing. If your black oblong tank is coated frost white, the freeze cutout is going to work. This will make the oblong tank sweat and keep the system from freezing solid.

You may be able to borrow manifold gauges from the tool loaner programs the autoparts stores have. Since the compressor is not running fast enough to cool, the low pressure switch may be cutting power to the compressor clutch while cranking.

Oct 01, 2012 | Cars & Trucks

2 Answers

2002 dodge stratus se a/c goes from ice cold to warm and back and forth...took it to Firestone and was told its the blower but my climate control unit switch blows hard and seems to be working properly,...


It is possible for that part to control more than the speed of the blower motor. But you can very temporarily bypass the low pressure cut-off switch using a jumper wire in the connector.

Then your compressor will stay on constantly which is a good thing for testing, but not for continuing to operate the vehicle. If the A//C clutch stays on and the blower works good after the bypass, then you probably need Freon.

You can borrow A/C mainifold gauges at major Autoparts stores. Best to get a can with oil and sealer included. MODERATION is the key to refilling the system. You have 2 cut-off switches. A high and a Low pressure cut-off. You can use the bypass jumper wire to help start the refill, then remove the jumper and let the car do the rest after restoring the Factory connection.

I hope my solution is helpful.

Jun 29, 2012 | Cars & Trucks

1 Answer

After i put the ac on my bmw x5 2003 get over heat and smell burn


pls. check your ac compressor magnetic clutch attached in front of ur compressor if its working/ ac clutch engage when u turn the ac switch on and disengage when u turn the ac switch off/ it normally makes a clacking sound when it engage with the rotation of ur compressor/ if its not engaging it means ur magnetic clutch is stuck up giving excessive load to ur engine thats why it overheats/ it smell burnt because its magnetic coil is fried/ or check cooling system of ur car might be that coolant is empty/ fan is not working/ radiator is clogged or thermostatic valve is stuck blocking coolant flow....

Apr 09, 2010 | 2003 BMW 5 Series

1 Answer

Have a 2003 stratus with intermittent A/C works great when on, where is the pressure sensor located?, that may be problem


On this Chrysler product they have an A/C Transducer located on the high pressure hose. The switch has three wires. They also have a thermo sensor located at the evaporator case behind the glove compartment. These two things are the only ones thatA jump in the system is only removing protection the system has. So it will damage your compressor or hoses. Find the compressor follow the high hose to the high pressure switch (transducer) it has three wires. Check under the dash by the glove box and you will see a round platick lid on the case with two wires that is your thermostat (thermo sensor).
control the compressor.

The A/C clutch is controlled by the A/C cycling switch (19E561) and the A/C pressure cut-off switch, which are connected in series. The A/C cycling switch is mounted on the suction accumulator/drier (19C836), and the A/C pressure cut-off switch is mounted in the discharge line at the A/C condenser.

The A/C cycling switch closes when the pressure on the low side of the system reaches approximately 276-324 kPa (40-47 psi). The A/C cycling switch opens when the pressure drops to approximately 163-175 kPa (23.5-25.5 psi), disengaging the A/C clutch. In ambient temperatures below -1° C (30° F), the A/C cycling switch will not allow compressor operation because of low system pressures.

The A/C pressure cut-off switch is used to interrupt A/C clutch operation in the event of high system discharge pressures. The A/C pressure cut-off switch is a single-function switch that controls A/C clutch engagement. When compressor head pressures rise to approximately 2896 kPa (420 psi), the contacts open, disengaging the A/C clutch. When the pressures drop to approximately 1724 kPa (250 psi), the contacts close to allow A/C clutch operation.

This problem can be caused by low refrigerant charge. Check with a manifold gauge set and temperature pressure chart.
The cycling switch is replaceable and there is a Schrader valve on the accumulator port so you do not lose your system charge when replacing. It screws on/off. It is available at any auto parts store. It protects the compressor from low pressure which can be caused by a loss of refrigerant and subsequent lack of lubrication and prevents evaporator freeze up. Replace the switch. It is about $10. The high presure switch is about $25.

Aug 26, 2009 | 2003 Dodge Stratus

1 Answer

AC compressor clutch is cutting on and off steadily during compressor operation.Is this clutch or clutch coil?I was pushing buttons on electronic climate control,and suddenly AC stopped working,only have...


You have to start by testing the pressure in the system. If it was cycling a lot and then quit it sounds like you developed a leak somewhere and once it fell below the low pressure switch it will not come on.

The system works with a high and low pressure switch that will cut out if the pressure is too high or low. When the system looses pressure it will fall below the low while running, turning off the compressor, When the compressor is off the high side and low side equalize out bringing the stationary pressure above the low limit, turning the system on again. This cycle will repeat until there is not enough pressure when equalized to turn the system back on.

If the pressure is good, go next to the relay, it should be located on the fire wall. if the relay is right, then you need to determine if it is high or low pressure switch shutting it off. IF it is the high, you probably have a restriction in the system, You could also have a problem with the compressor. With the car not running manually turn the clutch and see how much play, smell the area and smell if there is a burnt odor, then try to turn the armature that goes into the compressor. see if it is frozen.

Aug 16, 2009 | 1992 Cadillac DeVille

1 Answer

AIR CONDITIONER NOT OPERATING


Your problem could be caused by MANY things/components. Example, if there is LOW pressure in the AC system, it will not work. Blown AC compressor magnetic clutch fuse, (does this Santa Fe have FULL AUTO AC or Manual?). If the evaporator Thermostatic Switch is malfunctioning, the AC will not work.. if the AC compressor clutch relay is broken, the AC will not work, if the coolant temperature sensor is malfunctioning and telling the ECU (engine control unit) the temp is above 240 degrees, the AC will not work, etc. Here's a first step, go to http://www.hmaservice.com/ and register. You will find gobs and gobs of technical info on your vehicle -- more than you probably want to know.

May 26, 2009 | 2001 Hyundai Santa Fe

1 Answer

Tahoe Air Conditioning - No Electricity to Compressor


With the engine NOT running, pull the connection to the compressor clutch and hit the terminals with 12 volts from the battery. If the clutch clicks it's OK and probably is not working because of a low freon interlock if there is one.

You said you added a can of freon...... was the clutch working when you did this? If it all went sour when you added the can , could you have done it wrong and dumped the rest of the freon?

Jun 30, 2008 | 1997 Chevrolet K1500

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