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Where is the low pressure port on a 1999 GMC?

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SOURCE: where is the low pressure port on 2000 gmc sonoma

On the accumulator. Passenger side near the a/c box

Posted on Mar 30, 2010

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SOURCE: Where is the low pressure ac port on a 1999 GMC

the large ac line is the low pressure side the port is between the compressor and the firewall this is where you charge from

Posted on Jul 26, 2010

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SOURCE: where is the location of

Genrally, on the dryer that is the silver canister on the left side under the hood, near the blower motor housing; you need to look for the black plastic cap. The low pressure port is the one the recarge hose will fit it wont fit on the hi-pressure side.

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Posted on Nov 19, 2010

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Where is the low side port for the A/C on a 1999 Audi Q4 Quartro Avant? Thank you.

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the low pressure port is usually in the accumulator (aka receiver/drier) which is the large silver cylinder on the passenger side. If its not there, sometimes it is on the a/c compressor on the marge diameter hose/line. The high side is on the smaller line near the coolant reservoir. The low side is the one you want to fill with.

Oct 05, 2010 | 1999 GMC Jimmy

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Where is the ac lowside port located on a 2005 gmc savanna van

The low side port of the 2005 GMC savanna Van is located on the low pressure side of the compressor.

This is found by locating the compressor driven by a belt that has a clutch that engages and disengages as the a/c cycles.

The low pressure piping is always in the larger diameter piping, and the high pressure side is always contained in the smaller diameter piping.

Therefore, follow the thick pipes from the compressor up to the accumulator, which looks like a large can of soup. On the accumulator receiver/drier is a port that connects to the tube that is connected to the can of r134a freon refrigerant.

Simply quick connect the tube to the low side port, which is located on the 'thick' tubing or on the accumulator and then fill until the low side pressure is 25 psi to 45 psi while the compressor is running.

When the car is off and the compressor is not running, the pressure should be 75 psi to 100 psi on a hot day.

Hopefully the system doesn't have a leak slow or fast in it.

Aug 17, 2010 | 2005 GMC Savana

1 Answer

Where is the low pressure ac port on a 1999 GMC Sonoma?

the large ac line is the low pressure side the port is between the compressor and the firewall this is where you charge from

Jul 26, 2010 | 1999 GMC Sonoma

1 Answer

Where is the a/c drain line location for a 1999 ford expedition?

There is no A/C drain line. The A/C refrigerant is removed or added by way of the low pressure port. The low pressure port usually has a black or blue cap with L written on the top. Find the large diameter tube leading from the compressor back to the firewall. Sometimes the port is on or near the compressor or on the accumulator neat the firewall and is not on the large diameter tube. Make sure you have the low pressure port. Connect to the high pressure port and the can may explode so make sure you have the correct port.

Jun 13, 2010 | 1999 Ford Expedition

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Where is the low-pressure service port in the 1999

low pressure is port is alway next to the a/c dryer up on top the small port

Apr 17, 2010 | 1999 Toyota 4Runner

1 Answer

The A/C on my 1999 GMC Sierra blows out warm, even hot air when it's idling, and tolerably coolish air when I'm driving at speed on the freeway. I thought maybe I would have to recharge it, but the gauge...

well it sounds like you have too much freon and or oil in the system you need to have it evacuated and vacumed down and fill with exactally what it calls for and you need to also check the action of the fan make sure enough air is comming through the front of the car

Aug 09, 2009 | 1999 GMC Sierra

2 Answers

Where is low pressure port located on 1999 acura

look for the large ac line/hose and follow it untill u come to the small service port this is wher u charge the small ac line/hose has the large port this is the high side

Jun 29, 2009 | 1999 Acura 3.5RL

1 Answer

I have a 1999 GMC 3/4 ton truck. My air conditioning doesn't work

if it is low on freon the compressor will have 0 volts becuase the low pressure switch on the evaporator isn't triggering...if you have freon then replace the low pressure switch...take a small piece of wire and disconnect the low pressure switch and jump the two sides of the plug together...compressor should come on

Jun 04, 2009 | 1999 GMC Sierra

1 Answer

1999 GMC Sierra 1500 A/C blows warm air when idling

the low pressure port is the charging port, this port is either in the low pressure line or the accumulator that the low pressure lines to to (can shaped object), the low pressure line is the larger of the two lines from the compressor.

May 27, 2009 | 1995 Chevrolet K1500

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