The 1996 850 doesn't have a high pressure port. Recharging is done through to low pressure side.
This is actually a trick question. There is NO High Pressure Port on the Volvo 850 Turbo. Service is done by connecting to the Low Pressure Side and using this access to both Evacuate and Service. Chrysler for a few years did not use a High Pressure Port and required connecting a Scan Tool to the OBDII Connector and taking readings this way but Volvo does not even offer this option. Todd
The low pressure port (Suction) and the high pressure port (Discharge) are both located on the back side of the compressor.
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.
The low pressure port on a 1996 Oldsmobile Cutlass is between the compressor and the firewall. It is on the larger hose attached to the compressor.
The port has an insert much like the valve stem on a car. The insert can be changed but make sure that the system is pressure free first.
The Villager does not have a test port, you need to tee into the line near the fuel filter to test pressure.
The Low Pressure Side port is located on the line coming from the the compressor. It can be identified by the black cap marked LOW.
it is located behind the driverside front indicator
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 low pressure port of the A/C system usually has a blue or black dust cap and is located either on the larger diameter metal tubing typically found between the evaporator and compressor, on the compressor itself, or on the receiver drier (orifice tube systems only). The high pressure service port is found either on the smaller diameter tubing or the compressor and is larger in diameter. Only charge through the low pressure port. There is a web site with a lot of help full information about your auto a/c system and will give you a pinpoint locations of both your high and low side port check the link below.
Do you mean the 1996 or 1997 Audi A4 2.8L? The first A4 came out in 1996, so there is no 1992 model. I don't believe there was a 2.8L for 2002 either. I have the 1997 1.8L turbo instead of the 2.8L V6. The low pressure R134 refrigerant port in my Audi is located on the top of the engine bay on the passenger side, next to the battery well. There are two aluminum pipes with ports covered by small black plastic caps. One is the high pressure port and the other the low pressure. The low-pressure pipe is slightly thicker than the high-pressure pipe.