Question about 1999 Chevrolet C/K 2500

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No AC in the front

I was getting no real ac in the front of my suburban but AC in the rear.
I replaced the dryer and evacuated the system seems good but what are the pressures? I got 150 hi and 25-30 low.

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The front side is disconnect to the ac, try to re-install the ac.

Posted on Jun 25, 2008


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How do i evacuate & recharge the ac on a 1998 chevrolet suburban

dealership has to evacuate system. best let dealership fix you need equipment to recharge AC vacuum pump and manifold gauge set.

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Where is the expansion valve located on the 2004 KIA Sedona

Kia Sedona expansion FRONT valve located under dash, behind glove box, fan and coil. Evacuate freon first. Disconnect Freon lines from firewall., Lay right front seat back to flat horizontal position and lay on top or totally remove the seat for easier working access. Remove under dash cover, fan, glove box, coil housing, remove coil mounting bolts, remove old expansion valve. (Inspect old valve, if debris inside, blow out coil before installing new valve. If visible debris best to consider replacing REAR expansion valve and DRIER/FILTER in front of radiator too and blow out all lines and coils while servicing.) Use compressor oil to lubricate "O" rings on new FRONT or REAR expansion valve, install valve bolts, reinstall coil bolts to FRONT firewall or REAR frame, reconnect freon lines to firewall in engine compartment. Evacuate AC system, install freon (35 1/2 ounces, nominal 3 pounds), check system for leaks, check for proper operation, enjoy.

Sep 12, 2012 | 2004 Kia Sedona

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My ac wont work in my 95 suburbsn added freeon and it still comes out hot

did you have the system evacuated? did you replace the expansion valve in the rear ac if you have and did you replace the orifice tube? also check and make sure the heater control valve is closing.

Jul 17, 2011 | 1995 Chevrolet Suburban

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My air conditioning began making a rythmic squeaking noise when the AC was on. It has now quit blowing out of the front vents. It works on the feet, defrost vents and in the rear air. What could this be??

  1. Air conditioner system is discharged. Have the system evacuated, charged and leak tested by an MVAC certified technician, utilizing approved recovery/recycling equipment. Repair as necessary.
  2. Air conditioner compressor clutch not engaging. Check compressor clutch wiring, electrical connections and compressor clutch, and repair or replace as necessary.

May 10, 2011 | 2003 Chevrolet Suburban 1500

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What do I need to change ac lines from rear air to just front air

There are companies out there that make cap-off kits for the rear a/c lines but I've found that often the lines are pitted and corroded enough that it's difficult to get them to seal properly and the result can be an a/c leak. What I do is to order the replacement high and low pressure hoses for a similar year/make/model vehicle that does not have the rear a/c option. These lines will hook up directly in place of the original Y type lines and will be leak and worry free. Most parts stores or a GM dealer can figure out what hoses you would need to do this. I would suggest having the system evacuated and recharged by a shop certified to do a/c work as the existing freon needs to be properly removed and the system fully evacuated before recharging so it will work properly. Hope this helps and good luck!

Jul 20, 2010 | 1999 GMC Suburban

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2003 suburban with rear air, 27K mi, rear ac and heat are fine, but the front air diverter doesnt seem to work. I switch between defrost, face, and floor modes but no changes. I replaced the climate...

If it is a mechanical switch that you turn this system works by vacume it could be the vacume supply hose coming from the intake manifold is either off or broken.

You could also have disconnected it by mistake when you changed the climate control. Good luck

Sep 19, 2009 | 2003 Chevrolet Suburban 1500

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Need to replace A/C compressor and hoses on 1999 GMC suburban C1500 5.8L V8 w/rear A/C. How do I do it and how much oil do I put in the new compressor?

Oiling in ac system is complicated.

why is the compresser being changed.

What I normally do is remove the receiver / dryer (which MUST reread > MUST be replaced when the system is opened) cut it open, check for chemical issues with litmus strip.

Typically, there is about one ounce in the reciever/dryer. If it is down to 1/2 ounce, for example, THE WHOLE system is down 50%.

The easiest way to get it right is to remove the expansion valve and flush the system, then all all new oil.

Really, this process shoudl be handled by a shop, with the right equipment to evacuate the moisture from the system.

If you are trying to save money, mount the new compressor and do not install the the reciever /dryer until immediately before the system gets evacated.

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AC doesn't blow cold

Have the compressor tested

Jul 20, 2009 | 1999 Chevrolet Suburban

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High ac pressure and not much cooling

new compressor,dryer,and orfice tube. clean system out really good evacuate and charge

Jul 03, 2009 | 1997 Chevrolet Suburban

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