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Where are the Drain plugs in 5.3 ?

20K views 14 replies 6 participants last post by  Terrible1961  
I gave ours a cooling system “refresh”, replacing both radiator hoses, heater hoses (Mike’s upgraded kit), thermostat, surge tank and cap.

I used the multiple drain/refill cycle method @snomuncher recommend until the water ran completely clear. Used about 6 gallons of distilled water. Filled to a 50/50 mix with DexCool. Hasn’t gone over 208 degrees since.

Robert (@rcg530) has some great cooling system DIY videos: