Draining Coolant
Thread Starter
Instructor
Joined: Dec 2002
Posts: 213
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From: Peoria Ill
Draining Coolant
Ok, I opened the nylon drain "plug" (what's up with this odd looking thing?)on the right hand, lower side of the radiator, it went one half turn and I got a gush of coolant for about 15 seconds and about a gallon and a half has come out so far. Now it is dripping steady. How long will it take to get it all out? Will it all drain? Book says it holds 12 quarts. Am I ok here? I don't recall anything about a air bleed valve. Car is sitting level and the engine is cold. Thanks. 
Thread Starter
Instructor
Joined: Dec 2002
Posts: 213
Likes: 0
From: Peoria Ill
It's been about a hour now since I opened the drain,yes cap is off overflow tank, it has stopped dripping but I don't think I've gotten nearly enough out. The coolant looks normal, I don't plan on flushing it, just adding new. Again, am I ok here?
Race Director
Joined: Jan 2003
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From: Houston, Tx Got traction?
CI 5-6-7-8-9-10 Veteran
St. Jude Donor '07-'08
Originally Posted by Oldvetter
You did open the cap on the over fill tank, right ?
Fyi...I had my nylon cap wear out, get too loose and eventually shoot out of my radiator...I had to be towed for a $1.69part. For 2 bucks, i plan on replacing my nylon cap every couple of uses.
Chris
Thread Starter
Instructor
Joined: Dec 2002
Posts: 213
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From: Peoria Ill
TTT please. I just refilled and it only took about 3 and one half quarts of mixed coolent. I was hoping to get more of it out. Thats not much for a change in a 12 qt. system. Is this normal?
Pro
Joined: Apr 2005
Posts: 663
Likes: 172
From: Oklahoma
Originally Posted by JTAllen79
TTT please. I just refilled and it only took about 3 and one half quarts of mixed coolent. I was hoping to get more of it out. Thats not much for a change in a 12 qt. system. Is this normal?
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Pro
Joined: Apr 2005
Posts: 666
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From: Mt. Pleasant SC
Originally Posted by JTAllen79
TTT please. I just refilled and it only took about 3 and one half quarts of mixed coolent. I was hoping to get more of it out. Thats not much for a change in a 12 qt. system. Is this normal?
Make sure use Dex-Cool mixed 50/50 with distilled water.
Race Director
Joined: Oct 2002
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From: Vancouver
2015 C5 of Year Finalist
St. Jude Donor '05-'06-'07-'08-'09-'10
Check this thread out. You'll see some posts from me and other's that explain the proper way to flush the system. You can't just drain the system. If you do you will not be replacing all of the fluid. Check it out. 
http://forums.corvetteforum.com/show....php?t=1208424
http://forums.corvetteforum.com/show....php?t=1208424
Le Mans Master
Joined: Feb 2002
Posts: 6,937
Likes: 21
From: Waldorf MD
I drained over 10 quarts out of mine. I did lower it down off the jack to do this. Was your's level when you drained it OR did you keep it up on the jack?
BTW, the shop manual says you do NOT have to flush if coolant is not dirty. I did not flush mine.
BTW, the shop manual says you do NOT have to flush if coolant is not dirty. I did not flush mine.
