Question about 1995 Pontiac Grand Am

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Low ac ref.i cannot find low pressure connecter

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If it is a 2.4 quad four engine,it is under the car right off the ac compressor,if it is a v 6 then look and find the ac compressor,and follow the large line from the ac compressor until you come to it.

Posted on Jun 01, 2010

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2 Answers

Ac problems


Either connection is bad to low pressure sensor or pressure sensor is faulty.

Jun 22, 2014 | 1997 Cadillac DeVille

1 Answer

Ac drainline 2002 toyota camry


Hi Andreas, The valves for evacuation and refilling the ac are the same. To drain the system an evacuation pump should be connected to the low pressure and high pressure valves. The valves are situated in the engine compartment, the high pressure has a red valve cover and the low pressure black. You will easily find the valves by looking along the air conditioning plumbing. Regards John

Sep 16, 2012 | 2002 Toyota Camry

1 Answer

My ac stop working,I checked compressor ,it's ok ,no power to compressor


Some possible causes are the system is low on freon, a faulty compressor clutch, faulty low pressure switch, relay, fuse, or control switch.
Do you have power at the fuse and the relay ?

Jul 15, 2012 | 2001 Chrysler Sebring

2 Answers

When i turn on the a/c,the compressor does not work


CHECK REFRIGERANT CHARGE. USING A MANIFOLD GAUGE SET. HOOK MANIFOLD GAUGE SET TO LOW PRESSURE PORT AND HIGH PRESSURE SIDE PORT. LOW SIDE PRESSURE SIDE SHOULD HAVE 25 - 36 PSI AND HIGH PRESSURE SIDE SHOULD BE 178 - 237 PSI. IF LOW SIDE PRESSURE SIDE READ BELOW 20 PSI THE LOW PRESSURE SWITCH WILL NOT TURN ON THE AC COMPRESSOR CLUTCH NEED TO ADD LITTLE MORE REFRIGERANT. IF REFRIGERANT LEVEL CORRECT CHECK AC COMPRESSOR FUSE AND RELAY.IF POWER GOING TO AC COMPRESSOR CLUTCH YOUR COMPRESSOR CLUTCH HAS OPEN WINDING. AC COMPRESSOR CLUTCH NEED REPLACING.

Aug 11, 2011 | 1997 Nissan Pathfinder

1 Answer

How to add freon to a 1987 Mercedes 190e 4cyl


You need to use a pressure manifold gauge:
http://www.amazon.com/Pit-Bull-CHIMG777-Conditioning-Manifold-Gauge/dp/B000VAQQ3Y/ref=sr_1_3?ie=UTF8&qid=1374522452&sr=8-3&keywords=r22+pressure+gauge
Connect the red hose to the high pressure side located in front of the radiator, connect the blue hose to the low pressure side located in front of the fuse box, there is a thick metallic tube that has a tire-style cap, unscrew that and attach it, purhcase R-12 refrigerant can of at least 1kg, then attach an adapter to the can and connect the yellow hose to this part, open up the flow valve and turn the can upside down while your car is running and the A/C is on.
Check for pressure, the high side should have a high pressure and low side should be as low as possible while the compressor clicks on. Google for the exact pressure numbers as I don't remember.
Just make sure that the AC compressor located at the bottom of the belts is engaged, this is engaged by the correct pressure setting automatically

Mar 16, 2011 | 1987 Mercedes-Benz Mercedes Benz 190 Class

1 Answer

1992 c 1500 the ac compessor has no elect. getting to it.is it the low pressure switch?


It could be several things,I would check the fuse with a test light, the low pressure switch, the connecting

molex plug that connects to your low pressure switch could be bad and have a break on it.if all this is

okay, there is a high pressure switch at the ac compressor check to see if it has voltage. whenever you

change out the ac compressor it is recommended that you change out the high pressure switch. hope

this helps. good luck!

Feb 19, 2011 | 1992 Chevrolet C1500

2 Answers

Is low pressure connection for ac


should be on pass side rear of engine compartment

Jul 24, 2010 | 2004 Ford Freestar

2 Answers

I need to know how to jump the ac low pressure to get my ac compressor to come on.


If you look on the low pressure side of the AC system you will see a plug that is incorporated in to the line. It will have two wires leading to it. Remove the plastic clip that attaches the two wires to the sensor and use a short piece of wire to connect the two terminals in side the plug by putting the ends into the cap. This will bypass the low pressure sensor and allow the AC clutch to engage and begin to cycle again. Remember this low pressure switch is there for a reason. If you don't add more r-134 to the system and allow the AC compressor to cycle you will destroy the compressor. You need to charge the system when you bypass the low pressure switch and get the system up to full charge status and reconnect the switch.

May 24, 2009 | 1995 Chevrolet Camaro

1 Answer

AC low pressure port location


hello,good day,you have a 210 model with v 8 engine,your high pressure connection is located at front of your condenser,beside your ax.fan,then your low pressure connection is located at engine walling near your vacuum hose for brake booster,right side ,standing in front,ty

May 13, 2009 | 1998 Mercedes-Benz C-Class

1 Answer

Looking To Recharge The AC in a 2002 Pontiac Montana


the low port is between the engine and the radiator support and the high pressure port is by the cruise controll module

Jul 28, 2008 | 2002 Pontiac Montana

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