Engine Cooling System
- Specifications
- Schematic and Routing Diagrams
- Component Locator
- Diagnostic Information and Procedures
- Diagnostic Code Index
- Diagnostic Starting Point - Engine Cooling
- Scan Tool Output Controls
- Scan Tool Data List
- DTC P0480 or P0481
- DTC P1258
- Symptoms - Engine Cooling
- Cooling Fan Always On
- Cooling Fan Inoperative
- Engine Overheating
- Loss of Coolant
- Thermostat Diagnosis
- Coolant Heater Inoperative
- Engine Fails To Reach Normal Operating Temperature
- Pressure Cap Testing
- Coolant Leak Testing
- Repair Instructions
- Draining and Filling Cooling System
- Flushing
- Radiator Cleaning
- Surge Tank Replacement
- Surge Tank Hose/Pipe Replacement - Inlet
- Radiator Inlet Hose Replacement
- Radiator Outlet Hose Replacement
- Radiator Vent Inlet Hose Replacement
- Engine Oil Cooler Pipe/Hose Quick Connect Fitting
- Engine Oil Cooler Hose/Pipe Replacement
- Fan Replacement (Gasoline)
- Cooling Fan Replacement - Electric
- Cooling Fan Motor Replacement - Electric
- Cooling Fan and Shroud Replacement
- Engine Coolant Thermostat Housing Replacement
- Thermostat Replacement
- Coolant Air Bleed Pipe Assembly Replacement (RPOs LC9/LY5/LMG/L76/L92)
- Coolant Air Bleed Pipe Assembly Replacement (RPOs LY2/LY6)
- Coolant Air Bleed Hose Replacement
- Water Pump Replacement (RPOs LY2/LC9/LY5/LMG)
- Water Pump Replacement (RPOs LY6/L76/L92)
- Fan Shroud Replacement - Upper
- Fan Shroud Replacement - Lower
- Radiator Replacement
- Radiator Air Upper Baffle and Deflector Replacement (Cadillac)
- Radiator Air Upper Baffle and Deflector Replacement (Yukon)
- Coolant Heater Replacement (RPOs LC9/L76/L92)
- Coolant Heater Replacement (RPOs LY2/LMG/LY5/LY6)
- Coolant Heater Cord Replacement (RPO LY6)
- Coolant Heater Cord Replacement (RPOs LC9/L76/L92)
- Coolant Heater Cord Replacement (RPOs LY2/LY5/LMG)
- Description and Operation
- Special Tools and Equipment