Heating and Air Conditioning: Technical Service Bulletins

• Customer Interest
  • Heater - Poor Performance
    • Overview
    • A. Heater Performance Test
    • B. Chemical Flushing Procedure
    • C. Coolant Flushing Procedure
    • D. Refilling Cooling System With Coolant D542
  • Heater Hoses - Coolant Leaks
• By Symptom
  • Customer Interest
    • Heater - Poor Performance
      • Overview
      • A. Heater Performance Test
      • B. Chemical Flushing Procedure
      • C. Coolant Flushing Procedure
      • D. Refilling Cooling System With Coolant D542
    • Heater Hoses - Coolant Leaks
  • Leaks
    • Heater Hoses - Coolant Leaks
  • Poor performance
    • Heater - Poor Performance
      • Overview
      • A. Heater Performance Test
      • B. Chemical Flushing Procedure
      • C. Coolant Flushing Procedure
      • D. Refilling Cooling System With Coolant D542
• All Technical Service Bulletins
  • Heater - Poor Performance
    • Overview
    • A. Heater Performance Test
    • B. Chemical Flushing Procedure
    • C. Coolant Flushing Procedure
    • D. Refilling Cooling System With Coolant D542
  • A/C System - Flush After Compressor Failure
  • Heater Hoses - Coolant Leaks