Section 12-00: Climate Control System—Service
1994 Mustang Workshop Manual
DIAGNOSIS AND TESTING

Inspection and Verification

  1. Verify the vehicle owner's original concern by operating the climate control system to duplicate the concern.
  1. Inspect to determine if one of the following mechanical or electrical concerns apply:

    Mechanical Electrical
    • Loose, missing or damaged A/C compressor drive belt.
    • Loose or disconnected A/C clutch .
    • Loose or damaged vacuum lines.
    • Misadjusted A/C temperature cable .
    • Broken or leaking refrigerant lines.
    • Broken or leaking vacuum control motor .
    • Blown fuse.
    • Heater blower motor inoperative.
    • A/C compressor inoperative.
    • Cooling fan inoperative.
    • Circuitry open/shorted.
    • Manual air conditioner control or heater control inoperative.

  1. If the concern(s) remains after the inspection, determine the symptom(s) and proceed to the following Symptom Chart.