Cooling System Bleeding: 8.1L

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2002 GMC Savana Special, 2002 GMC Savana Camper Special, 2002 GMC Savana, 2002 Chevrolet RV Cutaway, and 2002 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION: DO NOT remove radiator cap when radiator is warm. Removing cap immediately lowers boiling point of coolant and could cause a violent overflow, resulting in large coolant loss and personal injury.

Fill cooling system through surge tank opening. Use a pre-mix of 50/50 DEX-COOL^® engine coolant and water. Add solution until level is slightly above surge tank split line. Start engine and idle for one minute. Loosely install surge tank cap. DO NOT allow engine to build up pressure. Cycle engine RPM from idle to 3000 RPM in 30 second intervals until coolant reaches 99°C (210°F) and thermostat opens. Shut engine off. Carefully remove surge cap. Start engine and idle for about one minute. Fill surge tank to 0.5" above COLD FULL mark on surge tank. Install cap on surge tank. Again, cycle engine RPM between idle and 3000 RPM in 30 second intervals. Shut engine off and check coolant level once again. Wash away any excess coolant from engine compartment.