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Changing coolant
Thread Starter
CF Junior Member
Joined: Dec 2010
Posts: 38
Likes: 0
From: Portland, OR.
Changing coolant
I have a 2004 6.0l 2500 Silverado. I want to change the coolant. The question being, how do I get the new coolant into the radiator? There is no cap on the radiator. the overflow bottle has a pressure cap on it. Do I pour the new coolant into the top hose and then run and adjust level from there?
CF Active Member
Joined: Dec 2010
Posts: 136
Likes: 0
From: Clovis, CA
After draining old coolant and flushing out radiator add new GM approved coolant thru overflow bottle. Thats the best way to refill the radiator. I usually drain rad by the lower rad hose and also undo a heater hose to flush it out. Secure all hoses and refill.
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taffany33
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Feb 3, 2013 9:07 PM
