[Subscribe to Daily Digest] |
 | [Main General Bulletin Board | BBFAQ |
Prev by Date | Next by Date | Post Followup ]
Member Login / Signup - Members see fewer ads. - Latest Member Gallery Photos
Here is my process for flushing the cooling system... Posted by REM in Seattle [Email]  (#4)  [Profile/Gallery]
(more from REM in Seattle) on Tue, 19 May 2009 08:49:15
In Reply to: Can I do this for a couple of days with the coolant?, bender   [Profile/Gallery]
, Mon, 18 May 2009 18:39:32
Members do not see ads below this line. - Help Keep This Site Online - Signup
|
When I flush the cooling system, for example to change coolant types or the get rid of an unknown coolant; here are my steps:
1) I drain the cooling system (typically by removing the bottom radiator hose.
2) Refill the cooling system with distilled water (could use tap water but distilled water has no minerals so will have no possible chemical reaction/particulates).
3) Run the engine until the thermostat opens (engine reaches normal operating temperature).
4) Let engine cool, then drain and refill with distilled water again.
5) Run the engine until the thermostat opens (engine reaches normal operating temperature).
6) Let engine cool, then drain and refill with one half the system volume in pure coolant and top off with distilled water Remember that there will always be an unknown amount of water trapped in the system. If the cooling system holds 10 quarts, after draining the system, add 5 quarts of pure coolant and top off with distilled water.
7) Run the engine until the thermostat opens to remove any air trapped in the system and let engine cool, top off if needed with distilled water.
A long process, but I am sure that the system was cleared of the old coolant and that the new coolant is the right mixture strength.
REM in Seattle
2005 Saab 9-3 Aero CVT; 23,000 miles
1998 Saab 900SET, 5-door; 107,000 miles
1984 Saab 900 turbo, 3-door; 242,000 miles (RIP
_______________________________________ REM in Seattle Current: 2013 Volvo XC60 R-Design, Rebel Blue, 3.0L 6-cyl turbo, Automatic 2024 MINI Cooper S Convertible, 2.0L 4-cyl turbo, 6-speed manual Former: 2005 Saab 9-3 Aero Convertible, Steel Gray metallic, 2.0L 4-cyl turbo, 5-speed 1998 Saab 900SET 5-door, Silver, 2.0L 4-cyl turbo, Automatic 1991 Alfa Romeo Spider convertible, Alfa Red, 2.0L 4-cyl, 5-speed 1984 Saab 900T 3-door, Red, 2.0L 4-cyl turbo, 5-speed
, Mon, 18 May 2009 18:39:32, Tue, 19 May 2009 08:49:15 <-- Viewing This Message, Wed, 20 May 2009 12:37:19, Tue, 19 May 2009 07:26:55
No Site Registration is Required to Post - Site Membership is optional (Member Features List), but helps to keep the site online
for all Saabers. If the site helps you, please consider helping the site by becoming a member.
 |
 |
 |
 |
 |
