you still have air in your system, and in the heater core. Here is what you need to do.
with reservoir full, and heater turned on full blast, start car until cooling fans come on, I think its about 130 degrees. then shut off. let engine cool and some coolant should have been sucked up. Then refill reservoir and do it all over again. until air comes out hot and no more is sucked up. sometimes you'll get lucky and while car is running the coolant will start getting sucked up, if that happen open up reservoir and keep filling until it stops sucking it up.
hope this helps.
Last edited by waterfowler76; 09-14-2018 at 09:35 AM.