I purchased a 94 impala for my kids and as I prep to get it to be a reliable vehicle I'm having a overheating problem. Sometime worse than others. The tb bypass has been performed previous to my owning. My coolant res has two lines coming off of it. One line goes to the steam line the other has a 90 degree fitting and it over fills to the ground? I suspect maybe this car at one point had a radiator with a nipple for this other hose. The 95,96 cars only have one nipple. Is there any way to make this configuration work? The way it is currently there is no way for the system to pressurize???
I know some of us (myself included) are visual learners. I also have a 94 with the TB bypass.
Cap the inlet pipe that is not used. The reservoir/coolant/system needs to be pressured to 15PSI. (Pressurizing liquids increases the temperature at which it boils.) As soon as your coolant starts boiling you will overheat very quickly.
The bleeder screw is located here just off the water pump
If you scroll down to the bottom of this link it will talk about the LT1 reverse cooling system in great detail.
I also recommend downloading the "SS handbook". It goes over basic information, maintenance items, and some basic modifications that are beneficial.
Thanks for the info. Sometime I feel deterred at the complexity of this car but you are right yes a cool car for my kids and the fact that it's moms dreams car it tickles me my kids have what she could never...