Engine Cooling System

• Specifications
  • Fastener Tightening Specifications
• Schematic and Routing Diagrams
  • Engine Cooling Schematics
• Component Locator
  • Cooling System Component Views
  • Cooling System Connector End Views
• Diagnostic Information and Procedures
  • Diagnostic Code Index
  • Diagnostic Starting Point - Engine Cooling
  • Scan Tool Output Controls
  • Scan Tool Data List
  • Scan Tool Data Definitions
  • DTC P0480 or P0481
    • Circuit Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
    • Action Taken When the DTC Sets
    • Conditions for Clearing the MIL/DTC
    • Diagnostic Aids
    • Test Description
  • DTC P1258
    • Circuit Description
    • Conditions for Running the DTC
    • Conditions for Setting the DTC
  • Symptoms - Engine Cooling
    • Notes
    • Visual/Physical Inspection
    • Intermittent
    • Symptom List
  • Engine Coolant Temperature Indicator Always On
  • Cooling Fan Always On
  • Cooling Fan Inoperative
  • Engine Overheating
  • Loss of Coolant
  • Thermostat Diagnosis (Overheating)
  • Thermostat Diagnosis (Slow to Heat)
  • Coolant Heater Inoperative
  • Engine Fails To Reach Normal Operating Temperature
  • Pressure Cap Testing
  • Coolant Leak Testing
• Repair Instructions
  • Draining and Filling Cooling System (LS4 Static Fill)
    • Tools Required
    • Draining Procedure
    • Filling Procedure
  • Draining and Filling Cooling System (L26, L32 Static Fill)
    • Tools Required
    • Draining Procedure
    • Filling Procedure
  • Draining and Filling Cooling System (GE 47716 Fill)
    • Notes
    • Draining Procedure
      • Notes
      • Vac-N-Fill Procedure
  • Flushing
  • Radiator Cleaning
  • Coolant Recovery Reservoir Replacement (L26 L32)
    • Removal Procedure
    • Installation Procedure
  • Coolant Recovery Reservoir Replacement (RPO LS4)
    • Removal Procedure
    • Installation Procedure
  • Radiator Hose Replacement - Inlet (L26 L32)
    • Tools Required
    • Removal Procedure
    • Installation Procedure
  • Radiator Hose Replacement - Inlet (LS4)
    • Tools Required
    • Removal Procedure
    • Installation Procedure
  • Radiator Hose Replacement - Outlet (L26 L32)
    • Tools Required
    • Removal Procedure
    • Installation Procedure
  • Radiator Hose Replacement - Outlet (LS4)
    • Tools Required
    • Removal Procedure
    • Installation Procedure
  • Cooling Fan Motor Replacement - Electric (L26, L32)
    • Tools Required
    • Removal Procedure
    • Installation Procedure
  • Cooling Fan Motor Replacement - Electric (LS4)
    • Tools Required
    • Removal Procedure
    • Installation Procedure
  • Thermostat Housing Replacement (RPOs L26/L32)
    • Tools Required
    • Removal Procedure
    • Installation Procedure
  • Thermostat Housing Replacement (RPO LS4)
    • Tools Required
    • Removal Procedure
    • Installation Procedure
  • Thermostat Replacement (RPOs L26/L32)
    • Tools Required
    • Removal Procedure
    • Installation Procedure
  • Thermostat Replacement (RPO LS4)
    • Tools Required
    • Removal Procedure
    • Installation Procedure
  • Coolant Air Bleed Pipe Assembly Replacement (RPO LS4)
    • Removal Procedure
    • Installation Procedure
  • Coolant Air Bleed Hose Replacement (RPO LS4)
    • Removal Procedure
    • Installation Procedure
  • Water Pump Replacement (RPOs L26/L32)
    • Removal Procedure
    • Installation Procedure
  • Water Pump Replacement (RPO LS4)
    • Removal Procedure
    • Installation Procedure
  • Coolant Pump Manifold Replacement (RPO LS4)
    • Removal Procedure
    • Installation Procedure
  • Drain Cock Replacement
    • Removal Procedure
    • Installation Procedure
  • Fan Shroud Replacement (L26, L32)
    • Tools Required
    • Removal Procedure
    • Installation Procedure
  • Fan Shroud Replacement (LS4)
  • Radiator Replacement (L26, L32)
    • Tools Required
    • Removal Procedure
    • Installation Procedure
  • Radiator Replacement (LS4)
    • Tools Required
    • Removal Procedure
    • Installation Procedure
  • Radiator Air Baffle and Deflector Replacement - Lower
    • Removal Procedure
    • Installation Procedure
  • Radiator Air Baffle and Deflector Replacement - Upper
    • Removal Procedure
    • Installation Procedure
  • Coolant Heater Replacement (RPOs L26/L32)
    • Removal Procedure
    • Installation Procedure
  • Coolant Heater Replacement (RPO LS4)
    • Removal Procedure
    • Installation Procedure
  • Coolant Heater Cord Replacement (RPOs L26/L32)
    • Removal Procedure
    • Installation Procedure
  • Coolant Heater Cord Replacement (RPO LS4)
    • Removal Procedure
    • Installation Procedure
• Description and Operation
  • Cooling System Description and Operation
    • Cooling Fan Control 3.8L
    • Engine Coolant Indicators
    • Coolant Heater
    • Cooling System
      • Notes
      • Cooling Cycle
      • Coolant
      • Radiator
      • Pressure Cap
      • Coolant Recovery System
      • Air Baffles and Seals
      • Water Pump
      • Thermostat
      • Transmission Oil Cooler
• Special Tools and Equipment
  • Special Tools