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Old 06-20-2009, 05:48 PM   #1
Seerlah
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Default Bleeding Coolant System

First off, I would like to welcome myself and say thanks to anyone whom decides to assist. Well, my mother owns a 97 Saturn SL2 and I was doing some maintatance work on it. One of these included coolant change. I was wondering, is there are bleed valve on these cars to bleed the coolant system? What I did was warm up the car to operating temps, then turned on the heater full blast for maybe 3-5 min with the radiator cap off. Is this sufficient enough for these vehicles or is there a different procedure I should aproach? Thanks!

Last edited by Seerlah; 06-20-2009 at 05:58 PM. Reason: spell check
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Old 06-20-2009, 07:11 PM   #2
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Default Re: Bleeding Coolant System

Basically the cooling system purges itself of air automatically after a coolant change. Yours is done already by what you did but not from blasting the heater. To hasten the air purging process, all you had to do was leave off the reservoir cap while the engine warmed up and the system topped up. As the engine runs the coolant already circulates through the heater core as there is no valve shutoff and this helps purge the system of air, including a purge hose to the reservoir container. As soon as air comes out the coolant container level will drop to indicate air being purged. After 15-30 minutes of this, check the coolant level, shut off the engine and leave the cap off until the engine cools off for a few hours. Check the level one more time, top off and replace the cap. Done. Our systems takes less than 2-gallons of 50/50 mix.
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Old 06-20-2009, 07:41 PM   #3
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Default Re: Bleeding Coolant System

Thanks for the fast reply. + rep for you
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