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Low pressure ac switch location - Altima Nissan Cars & Trucks

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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tebot
  • 15 Answers

SOURCE: Locating low pressure valve on 96 explorer for ac recharge

The largest diameter line is the suction which is low. The small one that runs to a coil by radiator is high pressure. If there is no cooling then you may have air in the system which means a leak must be fixed first. Are you sure the compressor is engaging? You should hear it click and the engine bog down a little.

Posted on Mar 30, 2009

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ginko
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SOURCE: AC Low Pressure location on 2004 Chevy Suburban

You find the AC low pressure at the top of the compressor, orientated toward you , facing the front of the vehicle. You can also follow the compressor line to reach the port.

The valve is covered a plastic cap covering it.
Near the compressor you find two ports, the high port and low port.

To find out which one is the low port, run the air conditioner for a couple of minutes withthe engine on.
Then turn off the care and touch the lines from compressor to the two ports covered with plastic caps. Only one of the pipes will be cold, the cold line will lead you to the low port.

Regards.

Posted on Jun 18, 2009

  • 82 Answers

SOURCE: Where is the low pressure line AC for Express 1500

Look for the accumulator(silver can a/c lines go to) on the passenger side of engine area. The Low side charging port cap should be on the side of the accumulator.

Posted on Jun 23, 2009

  • 11 Answers

SOURCE: LOCATION OF LOW PRESSURE AC VALVE ON 1992 FORD

Valve is between accumulator and evaporator on the passenger side. Your van originally came with R-12 freon, so you will need to verify that it has been converted to R-134 before adding freon. The different gasses (and especially the lubricating oils) do not mix well.

Posted on Aug 17, 2009

  • 1 Answer

SOURCE: 1992 gmc c1500 ac compressor relay location

I pulled this from another web site
"The AC clutch relay is located inside the cab on a metal bracket that is easiest to see when you remove the glove box compartment.

The relay is on a metal bracket bolted to the top of the plastic air box, forward and to the center of the dash from glove box.

There are three relays in a row on that bracket. The AC clutch relay is the end one closest to the driver’s side."

Posted on Aug 18, 2009

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The high pressure runs in the smaller diameter tube.

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The low pressure switch (also known as the AC compressor switch) will be under the hood, it will be located in the low side AC line from the AC compressor, this is the larger of the two lines from the AC compressor. See picture below, looks like it has a three wire connector. Also what is the AC doing that makes you think this switch is defective? Cycling on and off constantly?

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The low pressure switch is usually on the low pressure line or the accumulator, and the high pressure switch is on the high line or the back of the compressor.

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On GM models up to the late nineties it is located in the low pressure AC hose or on the accumulator which the low pressure line attaches to. The switch has a 2 or 3 wire connector to it and screws into a pressure port like a large tire valve..

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LOCATE THE LOW PRESSURE LINE AND FOLLOW IT, THEY ARE GENERALLY NEAR THE FIREWALL AREA, IF THAT DOESNT WORK, TRY A STANDARD HELMS REPAIR MANUAL, AS IT SHOULD BE LISTED THERE. WORST CASE SENERIO, JUST CALL THE DEALERS SEVICE DEPT. AND THEY SHOULD TELL U WHERE ITS LOCATED AT, AS IT HAS WORKED FOR ME IN THRE PAST.

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HIGH PRESSURE CUTOFF SWITCH LOCATED ON AC COMPRESSOR DISCHARGE LINE LEADING TO THE CONDENSOR.THE HIGH PRESSURE CUTOFF SWITCH WILL CUT OFF THE AC COMPRESSOR IF SYSTEM PRESSURE RISES TO HIGH CAUSED BY RESTRICTION IN THE REFRIGERANT CIRCUIT OR OVERHEATED CONDENSOR.MAKE SURE COOLING FAN IS RUNNING WHEN THE AC SWITCH IS ON.THE COOLING FAN KEEP CONDENSOR COOL, IF COOLING FAN DONT RUN.YOUR AC WILL STOP BLOWING COLD AIR.HAVE THE REFRIGERANT SYSTEM CHECK OUT.MAKE SURE YOUR LOW SIDE PRESSURE IS 10 - 37 PSI. THE HIGH SIDE PRESSURE SHOULD BE 112 - 210 PSI. CHECK THE AC COMPRESSOR CLUTCH FUSE AND RELAY.

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1 Answer

Where are all the ac switches and relays located


Check the low pressure switch,it is on the dryer or on the low side line,the large ac line,this can be the problem,try jumping the two wires that are plugged into the switch.If the freon is low,or out,this switch will not allow the ac compressor to come on.

Jun 21, 2010 | 1997 Chevrolet S-10 Pickup

1 Answer

How does a person short out the low presure switch on a 1995 cadillac a/c? i would really appreciate any help on this.


The low pressure switch is located on the accumulator, and you only need to remove the connector to the low pressure switch and jumper the wire connector to by-pass the low pressure switch, however I would not recommend doing so because it is there to keep the AC compressor from being damaged due to running it low on R-134a.

If you are trying to charge the AC system you do not need to by-pass the low pressure switch, just start the vehicle and turn the AC on to maximum, then charge the AC system and when there is enough pressure in the system the compressor will come on, and then just continue to fully charge the AC system.

Jun 08, 2010 | 1997 Cadillac DeVille

1 Answer

AC freezes up after running two hours.


If it actually is freezing up,the low pressure switch is the likely cause.It is screwed into the large ac line near the firewall,witch is the cold line.If it is not there it is in the dryer,near the firewall,or under the air filter box.Follow the ac line(large ac line/hoses)from the ac compressor untill you come to the switch,that is the easy way to locate it.This low pressure switch causes the ac compressor to cycle on and odd according to the pressure sensed from the ac low side line.When it gets really cold the pressure is lowered,and there for it will cut off,and when the pressure rises,it cuts the ac compressor back on.It would be a really good idea to check the freon in the vehicle first.If the ac system is low on freon,it will freeze up on some vehicles.

Aug 25, 2009 | 2005 Chevrolet Equinox

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