Depends on the make, model and engine
The air conditioning recharge valve on the 2003 Ford Explorer 4.6 is located on the low pressure side of the air conditioning system. Located on the line coming from the accumulator to the compressor is the recharge valve.
What is this low pressure value your looking for do,is it for a air conditioning,more info needed,car,make,model,engine size,what kind of problem are you having.please leave more info. yes, it's for the air conditioning freon refill on a ford focus 2003
You can find the air conditioning low pressure charging port on top of the air conditioning compressor. The low pressure port will be on the right hand side of the air conditioning compressor.
On top of the air conditioning accumulator (can), located on the passenger side of your engine not too far from the electric fan motor for your heater core/ air conditioning evaporator. It has a plastic dust cap covering the valve.
I believe it's behind the wheel well cover on the passenger side just behind the front wheel. You'll need a T-30 torx and a Phillips head to remove the panel. The port sticks out of the side of a silver tube.
You can recharge your air conditioning system by putting Freon into the low pressure port. The low pressure port can be found on top of the air conditioning compressor.
On top of the air conditioning accumulator "can" located on the passenger side of the engine roughly 5 inches or so from the electric fan motor for your air conditioning evaporator coil/heater coil. It has a plastic dust cap covering the valve.
It is on top of the evap can on the back left side of the engine bay
The service port is located on the a/c accumulator...........
It's on the passenger side against the firewall, it has a plastic cap on it with a capital L
its located in valve body
The low pressure service valve is located in the line that runs from the compressor through the evaporator (fire wall) and up to the condenser on the low pressure (suction) side of the system. This will also be the larger diameter line.