Cooling System Condition Evaluation

Inspection 

• 1.
  
  Use the following table to evaluate the cooling system condition and choose the correct procedure to restore the system.

  CONDITION	ACTION
  A component in the cooling system has been removed to gain access to another component or system, or any of the following components have been replaced:  Turbocharger Thermostat Radiator Heater core Coolant Pump Cooling System hoses or tubes EGR cooler without coolant/exhaust crosscontamination	Perform coolant test procedure. For additional information, Refer to: Coolant Test .
  NOTE: *Except as part of a new engine or short block installation. Major coolant loss, including empty coolant bottle, more than 24 hours before repair*Evidence of stop leak being used*Coolant is being replaced*Cooling system overheating condition is evident or suspected*	Perform cooling system flush. For additional information, Refer to: Cooling System Flushing - Without Oil Contamination .
  Any of the following components have been replaced (except as part of a new engine or short block installation):  Oil cooler EGR cooler with coolant/exhaust crosscontamination Cylinder head	If no oil contamination of the coolant, perform cooling system flush. For additional information, Refer to: Cooling System Flushing - Without Oil Contamination . If coolant is contaminated with oil, perform with-contamination cooling system flush. For additional information, Refer to: Cooling System Flushing - With Oil Contamination .