I just put a new radiator and thermostat in my 1991 Honda Accord. I did NOT have heat before and I still don't. I thought it was my thermostat. The bottom radiator hose is cold all the time, while the top is really hot. I also noticed that the inlet hose to the heater core is hotter then the outlet. I already did a back flush. I Also noticed that when I move the temperature dial from hot to cold my blower picks up. Any Ideas will help.

 

Sounds like you have a clog somewhere, maybe multiple clogs. try moving the heater control valve switch in the engine compartment. its near the firewall behind the left side of the throttle body

 

The switch does move. I also noticed that the warmer it is outside the more heat I get.

 

does that switch go back and forth when you turn the dial inside your car? if not, then you need to replace that. Its called the Heater Control Valve. Costs about $40 new, or $10 at a junk yard.

 

yes it goes back and forth. Before I changed the radiator and thermostat I could squeeze all of the radiator hoses completely together, now they are hard as a rock. After the heat control valve it seems the hoses seem to get colder.

 

u probably have a clogged heater core. there is a youtube tutorial on how to fix that.

 

I already flushed it and nothing came out, but water.

 

Did you also flush the inlet and outlet?, you may also want to try a strong chemical, something that will eat away gunk. I would recommend liquid Drano or similar. If you don't feel safe with something that strong use bleach, let it soak for awhile.

 

How would you flush the inlet and outlet?

 

http://www.youtube.com/watch?v=dcL_0...feature=fvwrel