ford Workshop Repair Guides

Ford Ranger Workshop Service and Auto Repair Manuals

412-01B Air Distribution and Filtering > < Air Conditioning (A-C) Clutch Air Gap Adjustment
Climate Control System - General Information - Refrigerant System Tests Ranger 2006.5 (05/2006-)
General Procedures

Special Tool(s)

Gas Charge Set

49 C061 0A0B

Gas Leak Tester

49 C061 013

Refrigerant System Performance Test

  1. Inspect the refrigerant pressure. See Refrigerant Pressure Check.
  1. Place a dry-bulb thermometer in the driver-side center ventilator outlet.
  1. Start the engine and after it is warmed up, run it at a constant 1,500 rpm.
  1. Set the fan speed to MAX HI.
  1. Turn the A/C switch on.
  1. Set to RECIRCULATE mode.
  1. Set the temperature control to MAX COLD.
  1. Set to VENT mode.
  1. Close all the doors and windows.
  1. Wait until the air conditioner output temperature stabilizes.
    • The A/C compressor repeatedly turns on and off at regular intervals.
  1. After the blower air is stabilized, read the dry-bulb thermometer.
  1. Verify the ambient temperature.

  1. Verify that the temperature reading is in the shaded zone.
    • If the there is any malfunction, inspect the refrigerant system according to the troubleshooting chart.

Refrigerant Pressure Check

  1. Install the SSTs (49 C061 0A0B).
  1. Start the engine and after it is warmed up, run it at a constant 1,500 rpm.
  1. Set the fan speed MAX HI.
  1. Turn the A/C switch on.
  1. Set to RECIRCULATE mode.
  1. Set the temperature control to MAX COLD.
  1. Set to VENT mode.
  1. Close all the doors and all the windows.
  1. Measure the ambient temperature and high- and low- pressure side reading of the SST (49 C061 001A).

  1. Verify that the intersection of the pressure reading of the SST (49 C061 001A) and ambient temperature is in the shaded zone.
    • If there is any malfunction, inspect the refrigerant system according to the troubleshooting chart.

Leak Test

  1. Inspect for leakage using the SST (49 C061 013).
    • If there is no leakage, go to Step 3.
    • If leakage is found at a loose joint, tighten the joint, then go to next step.
  1. Inspect for leakage again.
    1. If there is no leakage after tightening the joint, go to next step.
    1. If there is still leakage at the same joint, discharge the refrigerant and then repair the joint. Repeat the charging procedure from evacuation.
      For additional information, refer to: Air Conditioning (A/C) System Recovery, Evacuation and Charging (412-00 Climate Control System - General Information, General Procedures).
  1. Disconnect the SSTs (49 C061 006A, 49 C061 007) from the charging valves.

  1. Install the caps to the charging valves.

412-01B Air Distribution and Filtering > < Air Conditioning (A-C) Clutch Air Gap Adjustment