Engine Cooling for GMC Truck GMC C Cab/Chassis HD (GMT 400) 2002

All Component Locator

• Cooling System Component Views

All Description and Operation

• Cooling System Description and Operation

All Special Tools and Equipment

• Special Tools

All Visual Identification

• Cooling System Connector End Views

Cleaning, Inspection, and Adjustment

• Cooling System Draining and Filling
• Flushing
• Radiator Cleaning

Diagnostic Procedures

• Coolant Heater Inoperative
• Cooling System Leak Testing
• Diagnostic Starting Point - Engine Cooling
• Diagnostic System Check - Engine Cooling
• Engine Coolant Temperature Indicator Always On
• Engine Fails To Reach Normal Operating Temperature
• Engine Overheating
• Loss of Coolant
• Low Engine Coolant Indicator Always On
• Pressure Cap Testing
• Symptoms - Engine Cooling
• Thermostat Diagnosis

Diagnostic Trouble Codes

• Diagnostic Trouble Code (DTC) List
• DTC P1258

Electrical/Electronic Schematic Diagrams

• Engine Cooling Schematics

General Diagnostic Information

• Fan Clutch Diagnosis
• Scan Tool Data Definitions
• Scan Tool Data List
• Scan Tool Output Controls

Mechanical Specifications

• Fastener Tightening Specifications

Removal, Installation, and Replacement

• Auxiliary Engine Oil Cooler Replacement
• Coolant Heater Cord Replacement
• Coolant Heater Replacement
• Coolant Recovery Reservoir Replacement
• Engine Coolant Crossover Pipe Replacement
• Engine Coolant Fan Shroud Replacement
• Engine Coolant Thermostat Replacement
• Engine Oil Cooler Hose/Pipe Replacement
• Fan Clutch Replacement
• Fan Replacement
• Radiator Drain Cock Replacement
• Radiator Inlet Hose Replacement
• Radiator Outlet Hose Replacement
• Radiator Replacement
• Radiator Surge Tank Replacement
• Thermostat Housing Crossover Replacement
• Water Pump Replacement