No Heat after Flush

[69a100]

Long story short, 66-300 w/ac. Getting ready to move and did a 3X flush on the cooling system last month. Flush, fill, drive, cool, flush, repeat. Like I said, did that 3 X and doing this I also had the heat on to circulate thru the system and the heater worked fine! Took it out today for a spin and have no heat. The temp control cable moves the actuator so it does move from 1 end to the other no problems. All other actuators work going from ac/ max ac/ heat, defrost, etc. but still no temp change. Both hoses going to/from engine to firewall are the same temp. However, the short hose from each fitting at the firewall is cool. Looks like a bypass hose or something? I'm thinking that I'll have to flush the heater core from both those fittings and focus on the heater core alone. Ideas, hint's, tips, whatever's? Thanks

 

[CHARGERSTEVEN]

If you are going to flush heater core back flush it,in other words flush from the out flow to the inlet as not to flush crud any further inside heater core,try n dump some chemical in n let it sit a bit n back flush, a mild acid or car will work

 

[CHARGERSTEVEN]

Clr

 

[69a100]

If you are going to flush heater core back flush it,in other words flush from the out flow to the inlet as not to flush crud any further inside heater core,try n dump some chemical in n let it sit a bit n back flush, a mild acid or car will work

That's my plan, as I had the same kinda thing happen when I had a Rambler. Flushed, and then back flushed and you should have seen the crap that came out of it.

 

[oldbee]

Not up on a/C cars, but do you have a water valve on car? Maybe it's plugged/broken internally. Otherwise has to be plugged core.