Question about 1999 Lincoln Navigator

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AC for Linclon Navigator

Where is the low-side service port?

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  • grannywitter Jul 19, 2008

    Did you ind the answer for this we have a 1999 and we are trying to find the same thing



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Look on the back side of the compressor

Posted on Aug 25, 2008


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1 Answer

Low pressure port ac

Sometimes this port is on the oblong can called an accumulator. If not, very close to the accumulator will be a port on a small A/C line.
For a while, the wiring loom mounted to the Firewall above the A/C accumulater. Nearby and above are the starter cables intersecting the starter relay on the passengers side of the Firewall.
Sometimes removing the wiring bracket will give you better access for the port below it.

Jul 30, 2013 | 2003 Lincoln Navigator

1 Answer

What should gage read when ac recharge is full on 2000 navigator

In general, 30 on the low side and 240 on the high. Different systems with different port locations add to the variables. Ambient temp does as well.
Plus it is not an exact science. Manufacture technical data sheets will change the pressure from time to time due to on going testing.

Aug 25, 2011 | 2000 Lincoln Navigator

1 Answer

Which port is my low side service port for my ac on a 1986 chrysler new yorker located

The low side port is the one that is on the larger of the two AC hoses from the AC compressor.

Jun 24, 2011 | Chrysler New Yorker Cars & Trucks

1 Answer

Where is the low pressure for AC located on 2000 Lincoln Navigator

The low pressure port is the only one that your AC charging tool will fit on if you are planning to charge the AC unit with refrigerant. The high side port is much larger and the quick connect tool won't fit it. Look up high toward the firewall on Fords and Lincolns.

Aug 16, 2010 | 2000 Lincoln Navigator

3 Answers

Where is the low service port located on the 05 chevy cobalt ?


Jun 10, 2010 | 2006 Chevrolet Cobalt

2 Answers

I own a 2003 Lincoln LS. Can someone please help me out.I'm trying to recharge my air conditioner but I can't find the port to charge it.Please Help!!!!

low side is on the line coming off compressor going to evap core and high side is on other line between compressor an condensor

Aug 30, 2009 | 2003 Lincoln Navigator

2 Answers

I can't find the ac low pressure port in my 2004 lincoln ls. is there a map of the engine somewhere?

no,,, but find compressor and look for ac lines coming from it follow the large ac line untill u come to the small service port this is the low side the large port on the small line is the high side ,dont use it u can only hook to low side with single charge hose

Jul 04, 2009 | 2004 Lincoln LS

1 Answer

Garging the ac unit

the low side on this year is on the larger lines of the two sizes,it will be the 1/4 in service port,the larger of the two ports the small service port is on the small line ,it is the high side ,,but that is for r12 system which it came out with,if it has been retofitted to 134a freon use it will have a different kind of service port the large line will have the smaller of the two ports it is the low side ,looks like a quick connect,,,,if it hasnt been changed over ,go to parts store and ask for service port retrofit for 134s low side ,if u do not have gauges dont get the high side service port,,,if so ask for 3/16 size high side retofit .

Jul 03, 2009 | 1991 Ford F250

2 Answers

Ac low side service port location

Your service port will always be in the larger line of the two .. which is low pressure side. It might be in the dryer also which is low side.. your dryer is about 3 inches across and 8 inches long and also has your pressure switch for the AC compressor in it.. holler if you dont find it now... thanks Jerry

Apr 24, 2009 | Chevrolet Celebrity Cars & Trucks

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