Question about 2007 Volkswagen Passat Sedan

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2007 passat ac compressor will not engage doesnot have electric clutch plenty of freon fuses good no codes

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Check the Aircon pressure switch, try another if possible. Switch located on Aircon condenser behind front bumper. Either a to high or to low pressure in the system will prevent the compressor from engaging. Pressure switches do go faulty at times.

Posted on Jun 05, 2010

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2 Answers

AC fuse and relay for 2001 Ford Expedition


Pull a relay out and use paper clip to jump. Usually cross corner. Watch compressor clutch and see if engages when key is turn ahead. Don't start car. If it does good. Now take alligator clips and check relay. Clip each wire to negative and positive battery post. Then clip negative to negative relay pin. And touch positive to correct pin. If it doesn't click do it another relay so you know your doing it right. If determined relay is good. And your compressor clutch did engage when testing it. You are low on freon.

Jul 11, 2016 | Ford Cars & Trucks

1 Answer

2003 Ford Windstar AC is not working. It only blows out hot air. The blend door act. works properly(We have already tested it). There are properly freon in the Vehicle. We are at a lost. Please help


Can you tell if compressor clutch is engaged? If clutch isn't engaged only the belt pulley will be moving and the compressor clutch is not engaged. If not engaged, no ac.

Can you check for applicable hvac codes? To check codes, your-self, at the least, you need an obd2 code reader, that will check manufacturer specific codes as well as po.

I haven't looked at your wiring, you could probably check voltage and ground for compressor, hvac on.6158ef87-8677-4b29-952a-e287698970b5.jpg
In the diagram, you see applicable fuses--clutch relay-- the top wire at ac clutch is voltage--black wire is ground.

Jun 22, 2016 | 2003 Ford Windstar

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

Ac problem


first thing is always check for any fuses that may control it. if the fuses are all good, then check to see if the clutch (on the front of the compressor pump) is engaging when it's turned on? if not then it's low on freon. It has to have a minimum pressure in the system for the clutch to drive the compressor so the compressor doesn't burn up. If the clutch does try to engage but doesn't fully engage, (slips) then the clutch on the pump is bad.

Apr 02, 2013 | Cars & Trucks

1 Answer

2001 Honda Passport/Isuzu Rodeo a/c not getting cold, fan in grill not turning, there is plenty of freon and inside controls/fan working fine. Is there a fuse for the other fan?


Yes there is a fuse for the other fan, generally inside the engine bay as apposed to inside the vehicle. I would think it is more likely to be the clutch on your compressor unit that is not engaging when you press the AC button. In this case the fuse on the AC button is responsible and this is also found inside the engine bay. Check either of these fuses and you should get the AC working. If not then there may be insufficient pressure in your AC system or your compressor unit needs changing out.

Mar 13, 2013 | 2001 Isuzu Rodeo

1 Answer

My a/c compressor is only blowing hot air when I turn it on. I know a little about cars so I know it's the a/c but I am not able to find one on any site that may sell used or new.


If all you get is hot air there are several possibilities. The compressor is driven by the serpentine belt and is engaged and disengaged by an electric clutch mounted on the compressor drive pulley. With the engine running, have an assistant turn on the AC while you observe the AC compressor clutch. If the clutch engages, you can be reasonably sure that the system has freon, and the electric circuit is OK. If the clutch doesn't engage, which is the most likely situation, either you are low on freon, the AC clutch relay is inop, or AC compressor fuse is open (blown). A search of Google images will give you the location of the AC relay. You can pull out the relay, carefully remove the cover, reinsert the relay, and engage the compressor clutch by manually closing the relay contacts. Warning: do this only for a second or two in order to see the clutch engage. If the clutch does engage, then you are probably low on freon. There is a safety switch that prevents the clutch from operating if there is not enough freon in the system. Hopefully, this is the case. Go to Walmart and get two cans of r-134 and the inexpensive kit, and following their instructions, charge your system. If this is not the problem, you'll need a set of AC gauges and the skill to use them. Hope this helps. Dano

Aug 31, 2011 | 1998 Lexus Gs 400

1 Answer

Ac will blow warm air, the clutch does not engage. Could this be a compressor prob? Looked in the manual ...no trouble shooting ideas


Since you know that the clutch must engage in order for the compressor to operate, then there are most likely one of causes. The first is low or no freon in the system. The a/c system has a pressure sensor mounted in the low( return) side hose that prevents the clutch to engage if the freon is too low. The second would be the a/c fuse or relay faulty, preventing the clutch solenoid( a 12 volt electrically operated solenoid) from engaging. And the third would be that the clutch itself is bad because the solenoid wiring has broken. I suggest that first you locate the a/c clutch relay in the relay panel, remove the relay, carefully remove the plastic cover from the relay and reinstall the relay. The clutch should engage the compressor when you manually close the relay contact with your finger for one or two seconds. If the clutch does engage, your electrical circuit in ok and you are probably low on freon. A half of a can of r-134 in more that enough to operate the pressure switch. If it doesn't engage, check the a/c fuse or the clutch solenoid itself. Get back to me and let me know how things went. Dano

Jun 30, 2011 | 2001 Dodge Ram 1500 Truck 2WD

1 Answer

On my 2007 Dodge 2500 diesal the AC clutch will not engage. I found the fuse box under the hood and there is only one 10 amp fuse that says hvac. so where is the clutch relay or fuse? Which big fuse...


there is no relay in that box that is called the tipm or totally integrated power module. that module is controlled by a computer and should be checked with a scanner to see if you have a code for the a/c. i m having the same problem i have been told it could be low freon but can not get the clutch to engage to check the high and low pressure. Also read where it may be the diode in the clutch on the ac compressor if you have a multimeter probe the compressor a good compressor will read somewhere between 3.5 and 4.0 anything else and clutch needs to be replaced. other possibilities may be the high or low pressure switch on the line. on myh 2006 2500 diesel it is located near the plug for the compressor on bottom side of motor. hope this helps.

Aug 22, 2010 | 2006 Dodge Ram 2500

1 Answer

AC has freon (134a) pressure is good. Compressor


Have a code reader or scanner put on the car to erase all codes,this should reset the ac system circuit.Also check the low side clutch cycle switch,it may be the problem.

May 01, 2010 | 2007 Suzuki Forenza Sedan

2 Answers

AC not working


The A/C system has a pressure sensor that detects the freon level in the system. If you lost freon, the clutch that engages the compressor will not engage. A good indicator is to turn on the A/C and watch the compressor/clutch assembly. If the pulley is spinning and the clutch is not, odds are you have a freon leak. Good luck!!

Jan 20, 2010 | 1993 Chevrolet Corvette

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