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Discussion Starter #1
What is the 2nd coolant inlet for on the lower part of the manifold? Does anyone know. I think I'm gonna call Skunk2 if not. I'm completely mind boggled over it. Please help. I know Skunk2 probobly won't give me a goo answer.
 

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my JRSC intake manifold had the same thing, except they told me to plug it b/c it was supposed to supply coolant to something that older cars had; but in newer makes they got their coolant from elsewhere. i could find my install manual, but with a 98, you're after the change, so you're probably supposed to plug it.
 

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Discussion Starter #3
So you think it's based on the 94-97's?
The coolant does flow into the head there and not out right?
 

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yep, just looked at my JRSC manual... 98-00 models plug the 1/8" oolant hole near the #4 cylinder.
on the older cars it goes to the coolant fitting on the fast idle valve. on the newer models, the fast idle valve gets coolant from the barb near the distributor.
 

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Discussion Starter #5
how should i plug it?should i cap it off or actually plug it?
which way does is flow there?
 

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i'm pretty sure it flows out. on my IM, it was a 1/8" pipe fitting, and they supplied the barb to screw in for older models, and the plug to screw in for newer models. if your's is a threaded hole, you could do the same, but if it's a hose barb you can do an old trick where you put a small piece of hose on the barb, and the other end screw in a bolt or screw, and clamp down both ends with some screw-type hose clamps, and keep an eye on it for leaking. it's usually a good strong fix, especially if the bolt or screw has a tight fit.
 
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