heater solenoid

[rolfer]

i am trying to find out why my heater core is not getting flow. i have searched but not found a digram of fluid flow of the cooling system. the solenoid was installed with the labeled to "heater core" going to the core but i suspect since the other side goes to the expansion tank suspect the flow might be the other way. can someone please tell me which way this should be installed?
95512

[beeman]

I believe that is the Vintage Air unit? Upgrade to the one from MyRaceShop

[Perkster029]

There's a thread on the "other" site that might help, I actually looked it up yesterday for my build.

https://www.ffcars.com/forums/42-factory-five-gtm-forum/186912-heater-hose-flow-direction.html

[beeman]

https://www.pirate4x4.com/tech/billavista/Cooling/images/LS/LS%20cooling%20system%20-%20numbered.jpg

[rolfer]

thank you!!

i am not very knowledgable about this system. can you tell me how yours is better? thanks in advance

[rolfer]

fyi yes it is a Vintage Air unit and yes they had it in backwards and now it works!