No flow to heater core
Hello! I ahve searched this forum for a solution, and the eBahn manual.....so, here goes. We have poor heat. We have heat, but low. I have flushed, etc etc. The radiator and the coolant are now new (radiator was leaking), and a couple years ago I replaced all the front motor seals water pump thermostat etc. The problem started before this. The vehicle stays at the same temperature, not matter what I do (the thermostat and water pump are fine). The oil temp stays the same too. So here is the problem. I went out to backflush the core, and did get some flaky stuff out, but not so much that I was really concerned. The flow was fast, in both directions. So, great. I hook the hoses back up, leaving the outflow open a bit to bleed. Nothing much comes out.
So, I pull the supply tube. The problem is that there is little supply to the heater core. Has this problem been discussed previously? And if so, what should I do?
I plan on draining the system, and then hooking up the garden hose to the supply hose, and backflush that. But I do not know the circuitry. Any ideas will be helpful.