Thread: Coolant/Water Flow Direction

Originally Posted by Flip97GTP

Here is a question that I can't get a straight answer for, from anybody. It might sound like a silly question, but you will be surprised by how many people that don't get the answer correct.

What direction does the coolant/water flow from the engine into the radiator?

Top Hose or Bottom hose.

on a 3800 and most non mixer style cooling systems the upper hose is hot water discharge from T stat to radiator, lower is cold water supply to engine.

this is not always the case with newer mixer style thermostat engines, in this case it could be either way depending on packaging constraints

Originally Posted by Turbocharged400sbc

on a 3800 and most non mixer style cooling systems the upper hose is hot water discharge from T stat to radiator, lower is cold water supply to engine.

this is not always the case with newer mixer style thermostat engines, in this case it could be either way depending on packaging constraints

Yes, that's what I thought, but there is a few people I know that want to debate with me about this. They say I'm wrong and that it's the other way around.

I googled it and I got both answers for this question!