Radiator flush

Pbabcock

New Member
Did the radiator flush on my gmc envoy filled resivior with the distilled water and radiator let run 10 min let cool then drained it but the resivoir did drain still filled with dirty gross water and fluid is that normal
 

Blckshdw

Moderator
When I changed my thermostat, and later my water pump, the reservoir maintained some coolant in it. I needed to top them off, so it did drain some, but not completely. :twocents:
 

Redbeard

Well-Known Member
Did you turn on your heater so the water running through the cooling system might also flush out the coolant there?
 

TollKeeper

Well-Known Member
Did you turn on your heater so the water running through the cooling system might also flush out the coolant there?
If you have an EXT/XL also be sure to turn on the rear heat, and turn both the front and rear heat to max hot.
 

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