Air conditioning recharge lower port
SOURCE: I cannot differentiate between the low pressure and high pressure
This is a little A/C 101. Follow the A/C lines. All A/C systems have a high pressure side and a low pressure side. The high pressure side is from the compressor to the condenser coil on the front of the vehicle to the evaporator coil in the dash. At the expansion valve in the evaporator the pressure drops. At the expansion valve the refrigerant changes from a liquid to a gas. This provides the cooling. The low pressure side is from the evaporator back to the compressor. Usually the high pressure lines are smaller than the low pressure (suction) lines.
SOURCE: location of air conditioning recharge
Its under a small blue cap on a 1/2 inch steel line. Probably on the left hand side.
SOURCE: recharging ports for air conditioning on a 1997
LOW SIDE PORT WILL BE down by fire wall on line coming out of evap it is basically below alternator and high side port is by the radiator support
Single Pressure Gauges for Indl., Commercial & Specialty Uses
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