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Add freon to a 1999 chevy suburban - 1999 Chevrolet Suburban

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  • yadayada
    yadayada Aug 03, 2010

    THIS YEAR DOESN'T USE FREON, IT USES R134, U ADD IT AT THE LOW SIDE ACCUMULATOR OR THE LOW SIDE AC LINE.

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6ya6ya
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Posted on Jan 02, 2017

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billie17
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SOURCE: need to add 13-4a freon to my 2000 venture chevy van. Where is the pressure hose located?

passengers side under the hood.....by the firewall.....

Posted on May 12, 2009

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SOURCE: how can I add freon to 1999 chev lumina

Get an a/c charging kit, it comes with a can of freon usually with a blue hose, and a small guage on it. The type is R134a.
Under the hood look for the a/c pipes, one has a red cap which is the high pressure, and the other has a blue cap,( that can be anywhere), that's the you need. Unscrew the cap, screw the blue hose on to the pipe, DO NOT TURN CAN UPSIDE DOWN. Start engine, turn on a/c full blast, open valve on can. Shake once in a while. When can is empty disconnect. If no other problems with system, there should be cool air coming out.

Posted on Jun 29, 2009

dennymulford
  • 1055 Answers

SOURCE: 1999 chevy suburban misfire

could be one of several things
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2) could be the enjector

Posted on Feb 27, 2009

  • 3600 Answers

SOURCE: need to add freon to '99 chevy venture

on a 99 they use R134A and I suggest you buy a can from autozone the one with a gauge on it and it has compressor oil in it. When you use the can that has the gauge it will tel you several things one if the compressor is leaking and does it have vachum and it will keep you from over charging. It will hook up on the low side, and it will be on the passenger side by the fire wall. unscrew the blue cap start the car turn the ac to max A/C and fan on max do this in the morning as it will take a chage better if it's not hot, then crack open the valve on the can to allow enoungh freon to get the air out of the line of the can, this is very important, air mixed with refrigerant creates an acid in the ac system and will eat the rubber hoses and the orifce tube. Now screw the cap of the can on quickly and get it tight and open the valve on the can 1/2 to 3/4 turn and watch the gauge, shake the can back and forth to allow gas and liquid into the sytem so it will not slug the compresor with to much liquid and damage the compresssor, continue to wath cht gauge if it gets about 50 then shut off the valve and wait watch the gauge to see if it drops down to 30 if it does check inside to see if the air is cool if it's colder ad a little more watching the gauge as you do and continuelly shaking the can back and froth that is from side to side not up and down, I want to be clear about that. If the gauge reaches 50 shut the valve off check to see if it is cooling more, watch the gauge with the valve off if it drops to 30 again then quickly unhook the can screw the cap back on and then drive it on a stright away for a couple of miles to see if it gets cooler, if it does you may try to add more refrigerant but be careful cause at a certain point like 50 on the gauge it will stop cooling and yo will have it over charged and since you can't see the high side pressure we are just guessing what it is, if it's 30 on the low side then it will be 225 on the high side if its close to 50 the high side will be 300 to 350 and close to poping the safety release valve. good luck and hope this helps, normally the reciever dryer has to be replaced and the orifice tube but you might get lucky. And follow the direction I gave you exactly, if you see the pressure build to over 50 shutthe car off and unhook the hose anddo not attempt to charge it, it can blow the can up if the pressure gets to high. Good Luck.

Posted on Jul 24, 2009

roniecon
  • 6826 Answers

SOURCE: how do i add freon to my 2001 chevy tahoe

Follow the large line from the firewall it is the low pressure line,it will have the service port on it.Use the one hose kit from the auto parts store and apply the freon can on one end,and clip on the other end on the service port,then start the engine turn the ac on high bloewer motor,and max air,or recirculation,

Posted on Apr 12, 2010

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a low freon charge will shut the compressor off

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How much R134A do i need for a 1999 chevy suburban


as long as it has been vacumed down are was already empty and dose not have rear air should be no more than 2 to 3 cans of 134a.start with 2 if need add 3rd.BEST IF DONE WITH GAUGES.

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it is possible for either to be faulty, but it far more likely to need regassing.
there is a pressure switch in the freon system that will prevent the A/C clutch engaging if the pressure is too low.

i would get the refrigerant checked and topped up before starting to worry about anything else.

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When changing A/C compressor on 99' chevy suburban 1500 what all needs to be changed or done besides the flush, vacuum and freon.


there is either an orifice tube or a expansion valve. both do the same job. however, the orifice tube should be replaced. it will filter small particles from the system and gets clogged. i would also replace the accumulater or receiver/dryer and condensor. if your compressor went bad chances are there is a lot of debris in the system. flushing doesn't always remove the debris. there is much more info on the internet regarding this subject. as well as videos on you tube

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1 Answer

I need to add freon ton a 1998 suburban. I


If the compressor will run turn it on and let it run for a few minutes, the line that gets cold is the low pressure side, this is usually the one closest to the firewall. The reason that they are 6 inches apart is that they are on opposite sides of the orfice tube, hence one is high pressure and one is low.

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Chevy suburban front blower only works on certain settings.


I had the similar problem with my 99 suburban. I replaced the blower switch and works just fine.

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low freon soumds to me.. jump out the low pressure cut out switch near the dryer...or jump clutch relay in the distribution center. with clutch ingauged hook up guages to check low and high side pressures... also easy trick go to auto store get a can of 134a freon with hose and add the can the clutch should stay inguaged longer and longer as you fill the sytem... with clutch inguaged rev motor up to 1500 the guage on the hose should be around 35 to 40 pounds if low add more

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1999 Chevy Suburban - My rear air vents had COLD a/c coming out but my front vents had Cool/Warmer air coming out. I added a can of freon and now it needs more. I can hear a hissing sound near the joint...


The hissing is caused by the freon going through the orifice tube, so do not touch the 2 nuts. You will loose the freon in the system.

What's probably going on is the mode actuator is not functioning correctly.

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teh low side must to be the closes to the a/c acumulator.

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