Ok, I have done all I think that needs to be done in order to have heat in my 4runner..so, I have flushed the core out, my thermostat works, no leaks, headgasket is good, the heater control valve is clean, fluid is topped off, and it still blows cold, not even warm....anything that anyone can think of I might have missed? Help

 

check the cable for flapper under the dash if it does not close the cold air it wont get hot...Is it even getting warm?

 

x2

Its funny that the guy from Texas is the first to reply on the heater thread.

 

did you check the fuse behind the glove box? There is a fuse for the ac and heater back there, just an idea!

 

Both the water valve and the air valve must work.Are both heater hoses getting hot?
Bigblock

 

Lol, I know its Texas, but I do go alot up in the mountains of New Mexico, anyway, thanks for the replies, I think I found the problem, the cable that is on the heat/cold control on the inside was not attached to the knob, so the flap was shut, I pushed it in with needle nose pliers and the heat started coming out,yeh...it will be in the 30's tonight (here in Texas) so I can try it out in the morning....thanks again

 

supply and return hoses to and from the heater core may be plugged.
return to the water pump may be plugged.