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The low pressure valve is on the side of the accumulator-drier bottle. It is on the passenger side of the firewall.
The low side air conditioner pressure valve is located on the top of the accumulator of the Ford Focus 2005. This is located in the front of the passenger wheel near the bumper.
My 1997 Grand AM low pressure valve is on the air conditioner. I had to access it from the under the car. It has a blue cap on it. IF your looking from the top of the engine you can see it on the right side of the air conditioner.
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.
on passenger side of engine, half way up
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.
passanger side engine compartment might be on accumalator or line
On an automobile air conditioning system, the low side is the larger hose. The low side consists of 1 side of the air conditioner compressor, the accumulator or receiver drier, and the evaporator. The high side is the other side of the compressor, the condenser, the orfice or expansion valve and in some cases it may have a muffler near the compressor.
relieve the pressure off the high pressure side
The low side service port can be found on top of the air conditioner compressor. The low side service port will have a blue top.
You can find the low side air-conditioner import on the top of your 1986 Chevy Caprice air conditioning compressor. The low side air-conditioner port will have a blue top.
The Pontiac 6000 low side air-conditioner import can be found on top of the air conditioning compressor. The low side air-conditioner port will be labeled as the low pressure port.