No Heat in 1990 Honda Accord Dx
 

I am still trying to put my finger on why I have no heat. In the
summer months I was seeing lots of movement in the Temp display. So I
replaced the original radiator, and then the thermostat. All
fluctuations stopped, and it ran much cooler from then on.

Now I am seeing no heat. I wondered if the control valve was sticking,
as the "slide" for temp control resists staying all the way over to
heat. It "bounces" back toward the cold going no more than 3/4 the way
to the right (heat). Before I go and tear apart the dash to get to the
heater core, is there anything else that I can check? I did try
putting cardboard in front of the radiator to see if it is just running
too cold. There was some improvement, but still nothing like it used
to be.

I'm open to any suggestions, rather than to go see the dealership that
want's $1125.00 to replace the heater core.

Thanks,
Jeff