Coolant Level Check

STANDARD PROCEDURE - COOLANT LEVEL CHECK

NOTE: Do not remove radiator cap for routine coolant level inspections. The coolant level can be checked at coolant recovery bottle or the coolant degas bottle.

WARNING: DO NOT REMOVE OR LOOSEN THE RADIATOR CAP WITH THE COOLING SYSTEM HOT AND UNDER PRESSURE. SERIOUS BURNS FROM COOLANT OR HIGH PRESSURE STEAM CAN OCCUR.

The 5.9L, 5.9L Diesel, and 8.0L engine coolant reserve/overflow system provides a quick method for determining the coolant level without removing the radiator pressure cap. With the engine at normal operating temperature and idling, observe the level of the coolant on the external level indicator on the side of the coolant reserve/overflow bottle. The coolant level should be between the MIN and MAX marks. If the coolant is below the MIN mark, add a 50/50 mixture of antifreeze and water to the bottle until the level reaches the MIN mark. Do Not Overfill the bottle by adding fluid above the MAX line. This may cause coolant to spill onto the ground during subsequent vehicle operation.

The 3.7L/4.7L/5.7L engine coolant degas system provides a quick method for determining the coolant level with out removing the radiator pressure cap. With a cold engine, observe the level of coolant in the degas bottle. The level should be in the COLD FILL RANGE. DO NOT OVERFILL the bottle by adding fluid above the COLD FILL RANGE. This may cause coolant to spill onto the ground during subsequent vehicle operation.