Hello all,

96 4 runner 357k miles and still running strong!

Heat is beginning to blow cold now. Blend door works fine, heat valve replaced last year, thermostat replaced this past summer.

Any thoughts before I take the thermostat out and test?

I read a post earlier regarding a vacuum line sharing the heat valve in the Engine compartment but that was for a 95. My valve is solely connected to the cable (the other end controlled by the heat select knob in dash)

tks in advance

 

mine was just doing this and ended up beling low on coolent,

 

I noticed it to be a little low but I blew it off as "no way it could be that".. wife just sped off to work but will top off in AM and report back...... Hopefully this is the simple fix.. thanks man!

 

Yes if the coolant is low no heat!!

 

yup low on coolant....normally everytime, just top it off and check for leaks

 

well hell if you all weren't correct..... simple indeed, topped off and the heat happened. amazing stuff... still learning after 357,000 miles

thanks all. so simple sometimes the simple things just get overlooked;-)

 

I woulda started with taking your dash apart and replacing your heater core first. Glad it was a simple solution for you.