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Recharging air conditioning

Location of valve to recharge system

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In front of the passenger side wheel. You have to remove the cover.

Posted on Sep 12, 2009

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1 Answer

Faulty expansion valve-how do I replace it? Is it absolutely necessary to have it recharged after doing this?


the expansion valve is located at the evaporator, and the system must be purged before removing it. After installation the system has to be evacuated, and usually the receiver drier should also be replaced; then the system can be recharged. This is not normally a diy job unless you have the proper manifold gauges and a vacuum pump. Also, it is fairly rare that expansion valves go bad, to diagnose your problem would require pressure readings on the high and low sides of the system.

Jul 21, 2011 | 2004 Honda CR-V

1 Answer

Where do you recharge the airconditioning unit on a 98 jeep grand cherokee 4x4 loredo? Need the location of the fill valve. I already have the recharging kit.


Jeep GrandCherokee SUVs manufactured in or before 1995 use R12 refrigerant. You must retrofit these SUVs to accept R134 refrigerant using a retrofit kit available at your local auto parts store before you can recharge the system. In some areas, a license is required to retrofit an air conditioning system. If this is the case in your area, take your Jeep to a professional to retrofit the system.

Instructions:
  1. Step 1 Take your SUV to a mechanic to recover the R12 refrigerant out of the air conditioning system. A license and special equipment are needed to do this. Because R12 refrigerant is expensive, many mechanics will do the job for free.
  2. Step 2 Locate the Low Pressure Side connector port. You will find it on the driver's side of the engine. Remove the blue or yellow cap marked L. You only need to retrofit the system if you see a screw-type connector valve. If you see a quick connect valve, the system already is R134 compatible. Wipe the connector valve off with a clean towel. This ensures that the retrofit connector properly adheres to the valve.
  3. Step 3 Place the long retrofit connector from the automotive retrofit kit onto the Low Pressure Side valve. The retrofit connector has a special adhesive on the threads that will help it adhere to the valve. Screw the connector onto the valve. Tighten the retrofit connector using an adjustable wrench. Place the cap provided in the retrofit kit onto the retrofit connector. This keeps dust out of the system.
  4. Step 4 Follow the air conditioning lines away from the compressor until you see the High Pressure Side port valve. This is located near the Low Pressure Side service port. Remove the red cap and wipe the port off with a towel.
  5. Step 5 Put the shorter adapter onto the port. Twist it using an adjustable wrench until it is securely fastened to the port. Place the red cap from the retrofit kit onto the adaptor.
  6. Step 6 Fill out the Retrofit Identification sticker provided in the retrofit kit using a permanent marker. Remove the protective backing and place it on the interior side of the hood. This lets future owners and service professionals know that the system has been retrofitted.
  7. Step 7 Recharge the air conditioning system. See the related eHow titled "How to Recharge Air Conditioning with Freon in a Jeep Grand Cherokee."
WARINING:
Never try to evacuate the system yourself. A license and special equipment is needed to evacuate the system. Attempting to do this yourself will release refrigerant into the air, which is a federal crime.

Good luck (rated this help).

Aug 10, 2009 | 1998 Jeep Grand Cherokee

1 Answer

Need to find the location for expansion valve on honda accord lx 1996


expansion valve is located inside evaporator box behinde glove box you will need to evac system and recharge if going to replcace...this job is not for the first time mechanic

Jul 03, 2009 | 1996 Honda Accord

1 Answer

Low Pressure Valve 97 Grand Am


The low pressure valve is down by the AC Compressor. It is part of the aluminum manifold that connects directly to the AC compressor. It is accessible from above, but easier to reach from under the car.

By the way, is there any particular reason why you want to recharge your AC system? If it isn't working, adding refrigerant will not necessarily fix the problem. If the refrigerant has all leaked out, you probably need to evacuate the system first.

Jun 26, 2009 | 1997 Pontiac Grand Am

1 Answer

I need to locate the charging ports for the a/c unit on a 1998 chevy lumina sedan


follow big hose from ac pump to recharging valve. the cap has a "L" on it to recharge system, hope this helps!!!

Jun 25, 2009 | 1999 Chevrolet Lumina

1 Answer

Ac highside charge line location


the high side should have a black cap with a letter H on it.... if you dont see it then look for 2 valves that have caps on them, the larger of the valve is the high side, the smaller is the low side, the low side is the only one you want to use if you are refilling the system you do not want to mess with the highside... the low side pressure makes it so you can recharge the system, the highside will not work to refill a system if you are using the store bought recharging systems... and the valve on the recharger will only fit low side... hope this helps you... the highside should be on the pass. side towards the rear o the engine...

Jun 23, 2009 | 1997 Volvo V90

2 Answers

AC has stopped blowing cold air. Compressor is working. Where is the recharge valve located?


There are two A/C refrigerant lines. The small line is your high pressure line and the larger line is your low pressure line.
Start at the fire wall and follow the "large " low pressure line to the compressor. The low pressure charge port will be some where on that line.
DO NOT try to recharge on the high pressure side ( small line )
Good luck, let me know.
Regards,

Apr 26, 2009 | 2001 Saturn L-Series

2 Answers

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.

Mar 27, 2009 | 1996 Ford Explorer

1 Answer

Air conditioning needs recharged


First, you have to locate the thicker line in the compressor, then follow up until you find the valve to recharge the system, usually is located near by the accumulator bottle.

Jul 18, 2008 | 1996 Jeep Grand Cherokee

2 Answers

A/c recharge vale 96 town and country location


where is valve located to hook up a/c recharge hose?

Jun 05, 2008 | 1996 Chrysler Town & Country

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