At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.
I have a 2004 Mountaineer and it has two ports for the AC system as far as i can tell. I have a refil guage and hose for adding 134a and it should only fit the low pressure side but when i hook it up it reads 200psi which tells me that is the high side but the quick connect should not fit on the high side from what i know abou ac units. The port i'm hooking to is on the drivers side right next to te radiator and the other port with a smaller size is next to the radiator on the passanger side. What am i doing wrong? Is there another port I'm missing?
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Get a Chilton repair manual and locate the service port for the AC. Step 2 turn on engine, turn AC to full blast. Use caution and connect refill hose to port. Will only fit correct port. Set dial to outside temp fill to correct level don't over charged system
If the blower works but its just not blowing cold air, its possible to recharge the AC system yourself. Most auto parts stores carry AC recharge kits. Instructions to recharge the AC are belowl
RECHARGING AC SYSTEM
1.Turn the truck on and turn AC on HIGH 2.Locate the low side AC line (will have a valve and cap similar to the cap on a tire) 3.Insert the oil or R-134A can to the hose (Do not turn the screw to puncture the can yet) 4.Insert the other end of the refill hose to the low side valve 5.Puncture the R-134A can with the screw on the refill hose 6.You should feel the system suction the refrigerant out of the can 7.Check for frost on the AC lines and the air blowing inside the truck 8.If frost develops and the air is cold, you've successfully recharged the system and disconnect the refill hose. DO NOT ADD MORE REFRIGERANT...overcharging the system will damage your compressor and will be less effective
Best of luck and enjoy your vacation. Greg
Hopefully this answers your question and you're able to get your AC working again. Best of luck.
First, the old R-12 must be completely evacuated fromt the system. R-12 and R-134A do not mix and won't function together. Once you are sure there's no R-12 left in the system, you need to install an R-134A fill valve on the low side AC line. This is where your refill hose will connect to add R-134A. Once the valve is in place you're ready to fill the system. The compressor requires a minimum of 20psi to engage and should not be filled to more than 45psi.
RECHARGING AC SYSTEM
1.Turn the truck on and turn AC on HIGH 2.Locate the low side AC line (will have a valve and cap similar to the cap on a tire) 3.Insert the oil or R-134A can to the hose (Do not turn the screw to puncture the can yet) 4.Insert the other end of the refill hose to the low side valve 5.Puncture the R-134A can with the screw on the refill hose 6.You should feel the system suction the refrigerant out of the can 7.Check for frost on the AC lines and the air blowing inside the truck 8.If frost develops and the air is cold, you've successfully recharged the system and disconnect the refill hose. DO NOT ADD MORE REFRIGERANT...overcharging the system will damage your compressor and will be less effective Hopefully this answers your question and you're able to get your AC working again. Best of luck.
Hi .. I just ran into the same problem .. I have a 2000 Expedition with the 5.4L engine .. the low side port is located on the passenger side of engine compartment just below the black metal bracket that contains electrical connections right in front of the firewall... you have to reach under this and locate the low side (larger line) and feel for the connection .. it is right in front of the accumulator .. There are two heater hose that hide the port .. you have reach under these to unscrew the port cap which is black .. you'll have to do this by feel .. I have found that you can by R134A charge with dye and leak sealant helps with small leaks .. if the system takes more than two cans be usre to add refrig. oil .. hope this helps
1.Turn the truck on and turn AC on HIGH 2.Locate the low side AC line (will have a valve and cap similar to the cap on a tire) 3.Insert the oil or R-134A can to the hose (Do not turn the screw to puncture the can yet) 4.Insert the other end of the refill hose to the low side valve 5.Puncture the R-134A can with the screw on the refill hose 6.You should feel the system suction the refrigerant out of the can 7.Check for frost on the AC lines and the air blowing inside the truck 8.If frost develops and the air is cold, you've successfully recharged the system and disconnect the refill hose. DO NOT ADD MORE REFRIGERANT...overcharging the system will damage your compressor and will be less effective Hopefully this answers your question and you're able to get your AC working again. Best of luck.
Locate the low side AC line (will have a valve and cap similar to the cap on a tire)
Insert the oil or R-134A can to the hose (Do not turn the screw to puncture the can yet)
Insert the other end of the refill hose to the low side valve
Puncture the R-134A can with the screw on the refill hose
You should feel the system suction the refrigerant out of the can
Check for frost on the AC lines and the air blowing inside the car
If frost develops and the air is cold, you've successfully recharged the system and disconnect the refill hose. DO NOT ADD MORE REFRIGERANT...overcharging the system will damage your compressor and will be less effective
Hopefully this answers your question and you're able to get your AC working again. Best of luck.
Greg
Apart from doing a low side pressure check, you can try to recharge the system yourself with a refill kit that's readily available at most auto parts stores. If you're concerned about a leak, also get a can of R-134A with the UV dye that will show any leaking components. RECHARGING AC SYSTEM
Turn the truck on and turn AC on HIGH
Locate the low side AC line (will have a valve and cap similar to the cap on a tire)
Insert the oil or R-134A can to the hose (Do not turn the screw to puncture the can yet)
Insert the other end of the refill hose to the low side valve
Puncture the R-134A can with the screw on the refill hose
You should feel the system suction the refrigerant out of the can
Check for frost on the AC lines and the air blowing inside the truck
If frost develops and the air is cold, you've successfully recharged the system and disconnect the refill hose. DO NOT ADD MORE REFRIGERANT...overcharging the system will damage your compressor and will be less effective
Hopefully this answers your question and you're able to get your AC working again. Best of luck.
Greg
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.
You didnt actually post a question so I will try to help. You need 134a refrigerant and a way to get it into the system. Places like walmart and Advance Auto Parts has what you need. Most diy kits have a hose to connect to the Low Pressure side of the ac system and a guage. The other end of the guage has a connector that fits on the can of 134a. Start the car, turn the ac on high, open the hood. Being careful of moving parts under the hood, connect the hose to the Low Pressure side of the ac and see where the guage is reading. Most are color coded. If it says it needs charged, squeeze the trigger until the can is empty and take another reading. Continue until the guage is in normal range.
×