Question about 2001 Chevrolet Express

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Air Conditionner I want to refill my a/c system. Where would I find the low side service port? I have a 5.0L engine with front & rear air. Thanks Chuck

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  • anshoe Nov 09, 2008

    I've found the service port, with Blue cap, near the Coolant Tank on 200 Chevy cavalier. The valve is leaking with greenish yellow fluid. I need to change the valve. Where would I get that valve ? Only Chevy or somewhere else too ?

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It will be on the passenger side close to the radiator. Should have a plastic cap on it. When you take the cap off it looks like a larger tire valve stem.

Posted on Jul 12, 2008

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Posted on Jan 02, 2017

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Coolant leaks from my ford escape I have had it pressure tested and fitted a new cap When parked leaves a puddle of coolant


Always find the source first, The rear water ports are directly behind the rear lower intake bolts and the front ports are directly in front of the front bolts. The rear ports are cast into the lower intake manifold and are dead ends, air can get trapped in that area. In cold weather your thermostat may open slower, resulting in a pressure build up at the rear ports. Any trapped air will compress. Normal coolant system pressure occurs when the glycol is operating temperature. I would try refilling the system and getting the air out,the leak may only occur when the system is full. With a cold engine, open the radiator cap and add 50/50 mix, fill the resevoir to the low mark. Run the engine with the radiator cap off until the thermostat opens, the upper hose will be hot when the stat opens. Turn the car off and refill the radiator to the top. Sqeeze the upper hose to remove any air. fill if necessary. replace cap, run car again until it reaches operating temp. Now with a full system check for leaks. When replacing lost coolant should also have the heat at max temp. Get a good mirror to check for leaks. The outter mating surface of the rear water jacket gasket is flush with the block and the edge of the lower manifold, sometimes you can see where it blew out.

Nov 02, 2011 | 2001 Ford Escape

2 Answers

Where is the low pressure side of the air conditioner on the engine compressor


The Low Pressure Side port for AC is near the Throttle Linkage Connector centered in front of the engine. It has a black cap and says LOW.
  Connect the refill hose to the connector on the Low Pressure Side of the air conditioning system. The Low Pressure Side connector will be smaller than the High Pressure Side connector so the refill hose will fit properly only on the Low Pressure Side.
Thanks. Keep updated for any more query. You can rate this solution and show your appreciation.


 

Aug 10, 2010 | 2007 Dodge Ram Truck

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

Where do we put freeon for the air conditionner


There are only 2 fittings on your ac system. The low side is the one you put in refrigerant (r134a). It is the smaller sized fitting usually located on low side hose that connects to receiver dryer (looks like a can on passenger side firewall). The quick connect fitting on any recharge hose will only fit on this correct fitting. The other one (high side) is too large to fit. So you cant put it in the wrong one.

Jun 06, 2010 | 1994 Lincoln Town Car

1 Answer

Where is the air conditioning low side service port to refill ref


should be near receiver/drier, passenger side near firewall.

Jun 05, 2010 | 2001 Ford Taurus

1 Answer

CHARGING THE AIR CONDITIONING SYSTEM Where is the valve to connect the refill cylinder?


not sure what you mean by refill cylinder, but there are two ports to charge a a/c system, low side and high side, you fill on the low side, if you are using a can you bought from wal mart or a auto parts store than most come with a small hose that connects from the can to the port, you cannot mess it up, the hose will only connect to the low side port, the high and low side ports are two different sizes, one is located on top of the engine by the suge tank area, the other is located/accessed from under the front right of the car, look for a big hose coming from the a/c compressor and just follow it till you find the port, the big hose is your low side hose.

Apr 04, 2010 | 1999 Ford Taurus

2 Answers

Where do you recharge the air cant find theplace to hook up the refill refrigerant


U SHOULD NEVER HAVE TO RECHARGE, IF YOU DO U HAVE A LEAK AND THAT NEEDS TO BE REPAIRED 1ST BEFORE A RECHARGE, THE SERVICE RECHARGE PORT IS ON THE INSIDE OF THE OF THE PASSENGER FRONT FENDER, U MUST GET AT IT FROM UNDER THE CAR, IT IS ON THE ACCUMULATOR AND NOT VISIABLE, U MUST FELL IT, VERY HARD TO GET AT, GO TO LINK BELOW FOR PICTURE

http://www.aircondition.com/tech/questions/5/

Jul 10, 2009 | 2001 Ford Focus

2 Answers

Recharge Auto air conditioner


I just did this for my 1994 Camry. Does your camry use the R-134A modern refrigerant? Probably.

Go to an auto parts store and buy a can of R-134A with a pressure guage included. You'll need that guage so you don't overfill the system. I bought one that allows me to save the guage and buy cheaper refills int he future.

There are two AC valves. A small one, located in the left-rear of the engine compartment, behind the strut tower, just in front of where the passenger seat is located. It might have a cap on it marked "L". This is the "Low" port, and is the one you want. The larger "H" port is up near the battery, is bigger, and is the "high" port. You don't want to use that one, and besides, it won't fit the can anyway.

Locate that low valve in the left-rear of the compartment. Take the cap off (if one is still on there). Start the engine and get it up to running temp. Turn on your AC to maximum cool, fan at maximum. Follow the directions on the can. It's pretty simple.

You'll pull back on the bushing on the refill line, and then snap it onto the valve just like you'd find on an air hose. Snap it into place, and then start refilling. Make sure the can is upside down and that you rotate and shake the can to get the coolant out effectively.

Jul 03, 2009 | 1996 Toyota Camry

2 Answers

Low-pressure port I need identification


Basic AC system consists of Compressor pump (on engine), Condenser (front grill with radiator) and Evaporator (Firewall). Pump has two ports output (high pressure) and return (low pressure). Follow lines from pump. High side is usually between pump and condenser. Follow lines and find second port this will be low side (refill) port. Paint or replace port caps (red high, blue low). Also, refrigerant in system determines port size (R12 or R34).

Jun 24, 2009 | 2001 Chevrolet Malibu

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