You should be able to find two ports, may have a red and blue, or both black but two diffrent sizes, generaly high pressure is by the compressor, and low pressure is bt the condencer (by the radiator)the bigger of the two is low pressure, the smaller of the two is high pressure.
Low or no refrigerant Blown Fuse Defective pressure switch Bad clutch on compressor Selector switch
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.
It's under the compressor off the lower rad hose
Its included in the fuel filter 98-02
You have a cycling clutch compressor. Turn the AC on max, let the car for five minutes or so, go look at the compressor. You should see the clutch engaging and disengaging the compressor as the pressure builds and drops.
Possibly the pressure cycling switch.
Follow A/C lines from compressor - Larger is low pressure Could be by passenger firewall near drier Follow A/C lines from compressor - Larger is low pressure Could be by passenger firewall near drier
2000 saturn sw
The 2000 Acura air conditioner low pressure service port can be found on the top of the air conditioner compressor. The low pressure service port will have a blue top.
MY 2000 saturn is a standerd and I get an av of 38mpg
Behind the air contitioning compressor on the block next to the oil filter.
30 Front 30 Rear http://www.firestonecompleteautocare.com/tires/pressure.jsp