Radiator flush

Pbabcock

Original poster
Member
May 13, 2019
1
Mt
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
Nov 20, 2011
10,665
Tampa Bay Area, FL
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:
 

CajunWon

Member
Nov 25, 2012
137
Cary, NC
Use a tube to siphon that out before it mixes with the new coolant.
 

Redbeard

Member
Jan 26, 2013
3,466
Did you turn on your heater so the water running through the cooling system might also flush out the coolant there?
 

TollKeeper

Supporting Donor
Member
Dec 3, 2011
8,047
Brighton, CO
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.
 

Forum Statistics

Threads
23,273
Posts
637,499
Members
18,472
Latest member
MissCrutcher

Members Online