control valve

I have a couple of questions. 1. Which of the two hoses is the heater inlet hose? I am installing a prestone back-flush tee, and it needs to be on the inlet hose. 2. My heater control valve is not where I have seen in before on other similar vehicles (near the firewall). It is down close to...

Hi. I had an engine swap recently. I went with the lowest price for the install and now I find myself trouble shooting everything he either broke or didn't reconnect. Anyway, since its starting to get cool in the mornings, I notice the heat on the passenger side blows cold air. When I...