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How to Fill Coolant If the coolant system has been flushed, first add 100
percent ethylene glycol in the amount listed for the appropriate engine application.
Then slowly add clean water to the system until the level of the coolant mixture
has reached the base-of the radiator neck. Wait for two minutes and recheck the
level of the coolant mixture. add clean water if necessary to restore the coolant
mixture level to the base of the radiator neck When refilling the engine cooling system, add three engine
coolant supplement sealant pellets, GM RN 3634621 or equivalent, and GM
approved new Ethylene Glycol Coolant DEX-COOL GM RN 9985809. If the cooling system is being refilled ONLY (no flush), a
50 percent ethylene glycol and 50 percent clean water mixture should be used to
fill the system. Fill the system until the level of the 50150 mixture has reached
the base of the radiator neck. Wait two minutes and recheck the level of the coolant
mixture. add a 50/50 ethylene
glycol water mixture as necessary to restore the coolant mixture level to the base of the radiator neck. Install the radiator cap making certain the arrows line up with the
overflow tube. Close all air bleeds.
DO NOT over torque the air
bleed valve. The air bleed valve is made
out of brass. Fill the coolant
reservoir with a 50 percent ethylene glycol and a 50 percent clean water coolant mixture. The proper amount of this mixture to
be installed into the coolant reservoir is listed below: Add 0.65 liters (0.68 quarts) of a 5010 mixture of ethylene
glycol and clean water to the coolant recovery reservoir. CAUTION: The low coolant indicator lamp may come on after
this procedure. After operating the vehicle so that the engine heats up and cools
down three times. if at any time the "TEMP' warning indicator comes on. Immediate
action is required. Air bleed vent is at the thermostat house Thank you for using FixYa.com Regards, Lee Davidian
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