does anyone have a pic of heater core bypass. i know which tube leads to core but im not sure where i want to bypass it to. its been leaking in my passenger seat

 

Pull the 2 hoses loose from the heater core on the firewall & get a short piece of pipe to connect those 2 hose ends together. Using a U-bend, or 2 90s, makes it the easiest to do. That is the quickest & easiest way to do a temporary bypass until the heater core can be replaced.