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Drain the coolant before removing throttle body???

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Old Nov 22, 2011 | 12:43 PM
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vanquishfist's Avatar
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Default Drain the coolant before removing throttle body???
I'm planning on cleaning my throttle body and noticed in the GM service manual it says the first step in removing the throttle body on a 3.8 is to drain the coolant. Is this really necessary?
 
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Old Nov 22, 2011 | 03:15 PM
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Partial draining is fine. If you drain 1 gallon you'll be below the level of the TB.
 
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Old Nov 22, 2011 | 05:32 PM
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You don't have to, but once you remove the TB the coolant will drain on its own. lol
 
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Old Nov 22, 2011 | 06:20 PM
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That's what I was thinking, I would take it off and a bunch of coolant just runs out...

Thanks!
 
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