Question about 1996 Pontiac Bonneville SE CA Value

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A/C compressor won't engage.

Have check the fuses. I can only find two of them. No power at a/c clutch

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Ac not working, air compressor clutch not engaging


Hi Adeyeri

Keep in mind that the Clutch won't engage for a few safety reasons.

Temperature inside vehicle
Temperature of compressor or pipes
Pressure inside pipes
Compressor jambed
Eg It's out of refrigerant Gas

You can momentarily engage the clutch by simply giving it +12v to the wire attached to clutch. Usually has a connector close by.
Or
If it has a Relay (click) in fuse box
You can by pass it with a jumper

A quick engage & disengage should allow you to detect possible problem.
But don't over ride the built in safety for more than about a minute.

Cheers
Hope this Helps

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Feb 23, 2016 | 2002 Infiniti QX4

1 Answer

97 chevy suburban AC clutch won't engage pressures


Looks like the low pressure switch gets power from a 10amp ac fuse. Power then goes to the ac relay which is powered on by the ac heat controller on the dash. Power then goes thru the high pressure switch to the compressor. The ac relay is grounded to the body. Do you have power on the lite and dark green wires going into the relay and is it grounded ?

Jul 26, 2013 | Cars & Trucks

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.

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2 Answers

Vt aircon compressor wont engage


check the freon, if there isn't enough it won't engage, could also be the low pressure switch or a fuse.

Sep 05, 2012 | Holden Cars & Trucks

1 Answer

A/c clutch won't engage


Check your a/c fuse first you want to make sure you have power going to the a/c system If your a/c button light is on when you engage it you most likely have power. Second if your a/c system coolant is low of the recomended freon then so the compressor will NOT engage.This is a start!

Jun 05, 2012 | 1999 Volkswagen Beetle

2 Answers

Ac won't get cold anymore power to compressor but won't click on clutch won't engage possible problems are compressor or evaporator what do you think?


Has the Freon been checked with a gauge to see if there is enough Freon to allow the system to work. Low or no Freon will not allow the compressor to engage. The low pressure switch is most likely activated due to low freon, and will cause this condition.

Aug 19, 2011 | 2001 Jeep Grand Cherokee

2 Answers

AC blowing hot air, and won't accept freeon (2004 silverado Z71)


You may have already done this but thought I would throw it out there. Have you checked the fuse for the A/C compressor or the A/C compressor relay? If not just to let you know they are both located in the underhood fuse panel (below is a picture of it). Also below is a siagram of the fuse layout. The fuse with the yellow arrow is the fuse for the compressor and the red arrow is the A/C compressor relay. onther possible things could be a bad pressure switch. Do you have any pressure in there at all? Just a couple of things to check out. I hope this helps and good luck.


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Jul 31, 2011 | Chevrolet Silverado 1500 Cars & Trucks

1 Answer

AC compressor won't engage clutch


Lots of things can cause this, I will list them, easiest first.

A blown fuse or relay can prevent the clutch from kicking in. Low refridgerant charge will also do this, the low pressure switch will prevent the clutch from engaging when there is low refrigerant to prevent damage. You may need to put more in, and you also may need to jump the low pressure switch to get the compressor going to add more in. Very rarely the controls could have gone bad, which are the buttons on the dash. Id check out the fuses, relays, and pressure in the system first. A shop may even do a free diagnosis for you.

Jun 17, 2011 | 2002 Ford Escort

3 Answers

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

Aug 18, 2009 | 1996 Dodge Neon

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