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Discussion Starter #1
Hey. I know I'm leaking a little fluid from my water pump. So I thought I'd go and add a little anti-freeze.. Where's the cap? All I found was the reserve tank...
 

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1968 Cadillac Sedan deVille, 1994 Chevrolet G20
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That IS your cap. It's another difference from "normal" cooling systems to the LT1 cooling system. That tank is not just a overflow tank, it is pressurized along with the rest of the cooling system. If you look, the cap should have a pressure rating on it, like a normal radiator cap. Also, make sure that none of it leaks into your Opti-Spark, which is below your waterpump.
 

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Premium Member
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Discussion Starter #3
I hear scary things about the OptiSpark. Okay so when the time comes to fill it, I'll be very careful and add the fluid to the 'reserve' looking thing..

Thank you!
 
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