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Against the firewall
The recharge valve for the air conditioner on a 2002 GMC Envoy can be found by looking at the rear of the engine compartment. It will have a cap over the valve labelled as low pressure side.
passanger side engine compartment might be on accumalator or line
The Freon recharge port can be found on the top of the air conditioner compressor. There will be two ports. The recharge port will be labeled as the low pressure port.
The low pressure port in on the hose coming off of the compressor. It is just under the radiator support on the passenger side.
The air conditioner on a 2004 Saturn Vue is recharged by locating the low pressure valve and connecting the refrigerant supply. It is then injected into the system until the desired pressure is reached.
The 1997 Ford F1 50 pickup truck low pressure recharge port is located on the air conditioner compressor. The low pressure recharge port will be labeled as such.
the recharge valve is the smaller valve on the low pressure side (line). it is located above the dryer and next to the low pressure switch.the valve is on the line right next to the firewall on the passanger side.
It's about 5" downstream of the pipe coming off the compressor. Access from under side of car.
You can find the low pressure valve for your 1994 Pontiac Transport on the top of the air conditioner compressor. The low pressure valve will have a blue top.
The low pressure air conditioner port can be found on the top of the air conditioner compressor. The low pressure port should be labeled as such.
Its on the a/c accumulator..............