Question about 1996 Pontiac Bonneville SE CA Value

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My ac clutch will not engage - 1996 Pontiac Bonneville SE CA Value

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Check your fuses & wiring also the wires on the A/C switch in the dash to make sure they are connected, the switch or the clutch itself may also be faulty; to check the clutch run a wire from the positive terminal of the battery to the clutch on the air conditioner compressor & see if you can hear it clicking in, make sure you connect it to the positive lead of the clutch,you don't need to have the motor running or the ignition switched on......hope this helps.....cheers

Posted on Jul 10, 2010

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Posted on Jan 02, 2017

Molson02536
  • 3854 Answers

SOURCE: AC Clutch engages as soon as battery is hooked up

Your A/C relay may have gone bad and has disconnected the power to the A/C compressor clutch.
Not sure where the relay is to your A/C, it may be in the fuse box but regardless check the relay and replace if it's seized. If you like in the mean time, you can always disconnect the wire harness to the A/C compressor clutch to keep the battery from draining and save your compressor from over heating.
Good luck and hope this helps. Keep me posted and be glad to help.

Posted on Jun 03, 2009

Testimonial: "Well, turned out to be the engine was saturated with water, and I just removed the fuse for the ac clutch, do not need it this year! LOL"

VOLVOCHICAGO
  • 33 Answers

SOURCE: ac clutch not engaging

you will have to see with test light if you have power going to the ac compressor you either have bad compressor or low pressure switch

Posted on Aug 18, 2009

honeymokey
  • 3113 Answers

SOURCE: ac clutch-1988 buick regal

It's low on freon

Posted on Apr 09, 2010

  • 736 Answers

SOURCE: ac compressor clutch does not engage

to prevent damage to the air conditioning system there is a "low pressure switch" located on the condenser near the low pressure hose (large one) .. if the refrigerrant (R134A) gets too low then the clutch will be blocked from activating by that switch .. you can have your system tested and recharged or you can do that yourself .. the R134A is available at auto parts stores .. some come with a gague that is required for proper charge .. if you dont already have a gage then yoiu will need that one ... recharge kits often come with instructions .. other less likely but possible problems could be a fuse or bad AC clutch relay. sometimes damaged wiring or bad clutch will be the problem but much more likely just low fluid ..

Posted on Jun 24, 2010

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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

1 Answer

No electrical power to AC Compressor. The switch light comes on in car when AC power button is turned on.


  1. Check if air blows with the fan setting turned to high.
  2. Check that the radiator cooling fan engages when the A/C button is pressed.
  3. Locate the compressor.
  4. Turn on the A/C.
  5. Check if the compressor's clutch has been engaged.
  6. If the clutch engages, the fault is elsewhere.
  7. If the clutch does not engage, check for power to the clutch.
These steps might help find the problem.

Sep 16, 2013 | 1997 Ford Escort

1 Answer

What would cause my ac condensor to not engage on my 2002 Axiom?


The condenser is in front of the radiator, the ac clutch is on the compressor.
If the ac clutch does not engage, you would need to check to see if the system is charged with freon and if voltage is getting to the clutch.

Aug 13, 2012 | 2002 Isuzu Axiom

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

Airconditioning system blowing hot


Find the AC compressor. The pulley on it has an electric clutch that allows the compressor to run when the AC is on and not when it is off. With the engine running you should be able to see if the clutch is turning or not. The pulley turns all the time the engine is running only the clutch behind the pulley starts and stops. Look at the pulley with the AC off. Have someone turn it on and see if the clutch engages to turn the compressor. If it doesn't engage there are a couple thing that could be wrong. First the clutch has burned out and no longer works. The fuse on the AC clutch is blown. Check the fuse. More likely, if the cold air has been getting warmer, the AC system has a refrigerant leak. The system has a low pressure switch that prevents the clutch from engaging when the refrigerant pressure is too low. If the fuse is good then you need to have a qualified AC Technician check the system.

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Gaker

Jun 29, 2011 | Chevrolet Chevy Cars & Trucks

1 Answer

I replaced an AC clutch. I tested it with lead wires, it engages. When I plug it in with the AC on it will not engage. I have 13 volts to the plug with AC on. what would keep the clutch from engaging if I...


Hi

Here to understand why it’s not engaging first check the electric system, fuses, circuit breaker, and connection to the clutch assembly. Chances are your refrigerant level is low and the low pressure cut out switch is preventing the clutch from engaging in order to protect the compressor. You can jump across the terminals at the overload fuse to check operation of the clutch but only for a short period of time in case your system is low on oil. Evacuate and recharge the system to resolve the issue.

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May 26, 2010 | Ford Mustang Cars & Trucks

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

1 Answer

A/C won't turn the comp on,2003 toyota 4runner, Freon is full


try running the a/c button on and see if the ac clutch is engaged if its not engaging then you must be having an electrical supply problem that powers up the ac clutch/ check the ac clutch condition it must have been fried...

Apr 05, 2010 | 2003 Toyota 4Runner

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

1 Answer

Screeching noise, then a/c stops blowing cold air. Still blows air, just not cold air.


it could be the air conditioning clutch going out. to check turn your car on and idle it with ac on and hood open. at the ac compressor it will have a pulley on it with a clutch that engages when the air conditioning is on. if it engages and disengages it can be the clutch itself has gone bad, the ac clutch will also disengage if there is not enough freon in the ac system, will also engage and disengage if the pressure gets too high in the ac system. Depending on the year of the vehicle it will disengage at full throttle and come back on when you are not at full throttle.
If it is a metallic sounding screech for example take a coke can and drag it across pavement kind of sound it could be a bad compressor or a bad ac clutch. If it is a more rubbery sound for example a car spinning its tires kind of noise it could be a loose belt.

1. Check to make sure all belts are tight under hood
2. start car and look at ac compressor to make sure compressor pulley is turning and that the fan clutch is engaged spinning


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