Question about 1994 Buick Century

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Location of input valve to recharge air conditioning unit.

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Valve is located against firewall. just a little above the rear of the motor. there's a black or gray screw cap. unscrew and follow charging directions on can.

Posted on Oct 15, 2010

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Recharge the air conditioner


Instructions
    • 1Start the recharging process with any left over freon you may still have. Open the Civic's hood and attach the kit to the Civic's low side port. Then, set the kit onto a place in the engine compartment where nothing can move or shift once the engine has been cranked.
    • 2Start the Civic and let the engine run until it reaches its normal operational temperature.

      • Single Pressure Gauges for Indl., Commercial & Specialty Uses

    • 3Turn on the air conditioning to its coldest and hardest-blowing settings. Place a thermometer into one of the Civic's air conditioning vents and monitor how the temperature drops. Once the air conditioning's temperature reaches a level, constant degree, remove the thermometer.
    • 4Open all four doors on the Civic. This will allow any colder air generated to escape, and this will keep the Civic's air conditioning for accidentally cycling off while you recharge the refrigerant levels.
    • 5Turn the recharging kit's valve all the way down and let the refrigerant charge into the Civic's air conditioning periodically, shut the valve and look at the kit's gauge. This will allow you to monitor the recharging process. Allow at least one minute to elapse between refrigerant charges into the system.
    • 6Shut the valve of the canister, once it has become depleted. Disconnect the kit from the low side port.
    • 7Detach the hose, gauge, and valve from the empty canister and attach them to a new canister of refrigerant. Reattach the kit's hose to the Civic's low side port and continue recharging the system, allowing a minute between individual charges. The can itself can potentially grow very cold and hard to hold, even with gloves. Should this happen, wrap the can in a towel warmed in water. Ring out excess water before wrapping the canister.
    • 8Place you thermometer into one of the Civic's air conditioning ducts. Keep an eye on the falling temperature within the Civic's air conditioning system. The system is charged when the temperature hits 40 degrees. Also, within the engine compartment, the Civic's air conditioning aluminum tubing become uniformly cold.
    • 9Shut the recharging kit's valve and remove the kit from the low side port, once the system has been successfully recharged. Shut down the Civic's air conditioning, turn the engine off, and remove your key from the Civic's ignition. Also, shut all the doors

Jun 21, 2012 | 1998 Honda Civic

2 Answers

How to recharge recharge airconditioner


Hi, determine if your car uses R134 or R12 refrigerant. You will notice screw type connectors on the both the High Pressure Side and Low Pressure Side lines in models using R12 refrigerant. R134 compatible models have quick connect valves on both sides. Models made before 1995 may use the old R12 refrigerant. If this is the case, you must have your Chrysler's air conditioning system retrofitted to use R134 refrigerant. Mixing R12 and R134 refrigerants is dangerous and may cause damage to your vehicle. Check your air conditioning system pressure using an automotive air conditioning pressure gauge. Keep in mind that in order to get an accurate reading, the air conditioner has be turned on the coldest setting with maximum blowing power. Remove the Low Pressure Side port valve cap and set it aside. The location of the port varies, but it is usually in front of the engine block. Attach the refill hose to the port on the Low Pressure Side of the air conditioning system. The Low Pressure Side port is smaller the High Pressure Side port. Because the ports are different sizes, the refill kit hose should fit only on the Low Pressure Side port. Additionally, the High Pressure Side port will usually have a red cap or be marked with an H or the word High Allow the air conditioner to **** the refrigerant out of the can by slowly turning the valve on the refill kit hose. Pay attention to the way you hold the can. Most kits will have you hold the can upright when you recharge the air conditioning system. It may take as long as 10 minutes to empty a single can. Turn the valve to the off position and remove the refill hose from the port. Recap the port before closing the hood. Let the air conditioner stay on for at least 30 minutes. This allows the refrigerant to move throughout the entire system.
Take care

Aug 03, 2010 | 2006 Chrysler Town & Country

1 Answer

Recharge air conditioning system.


FOLLOW THE AC COMPRESSOR LOW PRESSURE TO THE ACCUMULATOR AND EVAPORATOR LINE GOING INTO BACK LOWER FIREWALL LOOK FOR A LINE WITH A BLUE CAP ON IT.THATS YOUR RECHARGE PORT.

Jul 18, 2010 | 1997 Pontiac Bonneville

1 Answer

Reacharging air conditioning unit


On suction line near the compressor

Jun 25, 2010 | 2000 Dodge Caravan

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

Rear air condition is not working, only the front


No there is only one low and one high side service ports.You have a bad expansion valve on the rear a\c unit.To properly replace the valve,you must first recover the freon from the system.Then remove the cover over the rear unit.Then from under the vehicle remove the two a/c lines from the unit.Then remove mounting bolts and remove rear unit from vehicle.Then you remove the screws that hold the two halves of the case together.You will now see the expansion valve Use extreme care when removing the fittings from the valve.It is very easy to kink the copper lines.Reinstall in reverse order.Be sure to evacuate the system before recharging.

Aug 08, 2009 | 2003 Dodge Durango

1 Answer

Need location of valve to recharge air conditioning on 1997 GMC Sierra 1500 V8


Some have the valve type that looks like a tire valve. Most newer vehicles have a red and yellow cap on the adapter. Red is for the high flow and yellow is for the low pressure flow

Jul 03, 2009 | 1997 GMC Sierra

1 Answer

Recharging air conditioning


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

Jun 26, 2009 | 2003 Ford Focus

1 Answer

Air Conditioning


It's on the back wall under the hood on the drivers side. I just recharged mine.

Jun 01, 2009 | 2001 Oldsmobile Intrigue

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

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