Home Auto Repair Air Conditioning Trouble Shooting 1989 Toyota MR2

Air Conditioning Trouble Shooting 1989 Toyota MR2

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Download Air Conditioning Trouble Shooting 1989 Toyota MR2 – CONDITION Compressor Not Working | POSSIBLE CAUSE: ù Compressor clutch circuit open. ù Compressor clutch coil inoperative. ù Poor clutch ground connection. ù Fan belts loose. ù Thermostatic switch inoperative. ù Thermostatic switch not adjusted. ù Ambient temperature switch open. ù Superheat fuse blown. CONDITION Excessive Noise or Vibration | POSSIBLE CAUSE: ù Missing or loose mounting bolts. ù Bad idler pulley bearings. ù Fan belts not tightened correctly. ù Compressor clutch contacting body. ù Excessive system pressure. ù Compressor oil level low. ù Damaged clutch bearings. ù Damaged reed valves. ù Damaged compressor. CONDITION Insufficient or No Cooling; Compressor Working | POSSIBLE CAUSE: ù Expansion valve inoperative. ù Heater control valve stuck open. ù Low system pressure. ù Blocked condenser fins. ù Blocked evaporator fins. ù Vacuum system leak. ù Vacuum motors inoperative. ù Control cables improperly adjusted. ù Restricted air inlet.