5.0 V8 heater plug coolant leak Freeze Plug Leaking
Freeze Plug Failure On A 6.6L Duramax. #Oil #Coolant Spray ospho on the metal and scrub it with a wire brush until it is bright. Depending on how fast is is leaking you may need to drain it. It is best to get another plug, clean the block opening thoroughly finishing up with a degreaser like brake clean on both the block and the new plug. ...