Initial Inspection and Diagnostic Overview

CAUTION: To avoid possible damage to the cooling system, alcohol or methanol based-coolants, or pure water should not be used at any time.





CHECKING
The radiator cap should not be removed to check the ECL. Visually check the ECL at the see-through coolant recovery reservoir located on the left side of the engine compartment. ECL should be somewhere between the LOW and FULL marks on the reservoir. The level should increase somewhat as the vehicle is running, and decrease as it cools down after being turned off. Should the ECL prove to be low, refill the cooling system through the coolant recovery reservoir with a mixture of 50% water and 50% ethylene glycol antifreeze meeting: GM specification #1825-M. When installing the coolant recovery reservoir cap, point toward front of vehicle.