Corvette LS1 throttle body question

[Jason Haines]

As you mentioned, the tubes are for coolant to help warm up the throttle
body and reduce ice build up inside the throttle. I think one of the GM
durability tests requires them to be there or the throttle will stick.

Jason



----- Original Message -----
From: <WEG1192 at aol.com>
To: <gmecm at diy-efi.org>
Sent: Friday, March 30, 2001 11:24 PM
Subject: Corvette LS1 throttle body question


> Anyone know what the small tubes on the bottom of an LS-1 TB are for? I
> thought they were ported and manifold vacuum ports but when I cover one
tube
> with my finger and blow on the other, its a sealed passage. Was this for
> engine water to keep the TB from icing up? The tubes are too small for
that I
> would think. Thanks for any assistance. JW
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