Removing coolant line under throttle body?

[SaberX]

When removing the hard pipe that runs from the engine to under the throttle body do I have to bleed all the coolant out of the system? I'm installing an intake that requires me to remove these pieces and I don't want to make a mistake.

Thanks.

 

[Briank]

I am not sure what coolant line you are talking about but I would drain out all the coolant you can from the engine drains to avoid a mess.

 

[hlweyl]

Haven't done it on the NSX, but for other V6 honda's it is part of the idle air control valve. You don't lose that much coolant when the valve comes out, I would worry about draining the whole system.

good luck