On my '76 it's easy; the low side port is the one by the evaporator, NOT the one in line. If you have a different year, here's how to find it on any car. AC works by compressing a gas, which makes it hot. Then this compressed gas gets cooled at the radiator, down to about outside air temperature. This cool and compressed gas then goes to the coil inside the car where the pressure is released and the gas gets cold. Then the gas gets sucked back from inside the car to the compressor and so on. So the low pressure line is always the line going from inside the car to the compressor, the high pressure line is the line going from the radiator to the inside of the car.
Where is the a.c service port located
IF U look @ the Condenser & find the line that coemes from the top of IT-THATS NOT THE LOW Pressure-Trace the other line @ the bottom of the Condenser & U will find the LOW port.
By plugging a scan tool into the service port.
You can find the 1993 Mitsubishi air conditioning service port on top of the air conditioning compressor. The air conditioning service port will be labeled as the low pressure port.
im trying to find out where the a/c low side service port is on my 95 buick century
The 2004 Civic low pressure air conditioning service port can be found on top of the air conditioner compressor. The low pressure port should be labeled as such.
Usually between the compressor and the evaporator.
The AC low side port on a 1999 Cadillac DeVille is against the firewall. It is on the larger of the two hoses going to the AC compressor.
The EVAP Service port is on the firewall on the passenger side, right next to the low side service port for the A/C.
If the AC has R-12 in it you cannot service it yourself. It has to be taken to an authorized AC service station.
Its on the accumulator/drier. You can find a drawing of this on the link below. Just follow the "Find Your Car's Low Side Port" icon.
In my experiences, Burger De Ville in Mount Royal and Montreal Poutine in the Old Port.