the port with a black cap on it, your hose that you use to transfer the coolant will only fit on the low port side.
look for the port with the black cap on it, it's the low pressure port.
On the ac system, the low pressure port is the smaller port. It will be located on the line coming from the dryer. The low pressure line is the larger line. it will be on it.
low pressure port is on top of the ac compressor
the low pressure port is right on top of the comperssor
The 1997 Volvo 850 low pressure port is located on the air conditioning compressor. The low pressure port will be on the right hand side of the compressor.
If you are referring to the AC low pressure port, you will see two in the engine compartment,the low pressure port is the smaller one. They will both be on silver colored "pipes" and have black caps on them. DO NOT PLAY WITH THE HIGH PRESSURE PORT!
The low pressure port is the one on the accumulator (the canister). The low pressure lines are the bigger lines and the high pressure are the small lines.
The 2000 Pontiac Bonneville air conditioning compressor low pressure port is located on the bottom of the compressor. You can recharge your cooling system through the low pressure port.
The 1995 Audi low pressure port can be found on top of the air conditioner compressor. You can recharge your air conditioning system through the low pressure port.
The 2001 Saturn L200 low pressure port can be found on the air conditioning compressor. The low pressure port will be closest to the front of the engine compartment.
The 1998 Plymouth Grand Voyager low pressure port can be found on the top of the air conditioner compressor. The low pressure port should be labeled as such.
The low pressure port is the same place that you add Freon to your air conditioning system. The low pressure port will have a blue top.