My front heater dose not blow hot air out when the heater is on but my back one blows hot! Air out what can the problem be?? I have a 84 runner

 

is the fan working but ur not getting heat?


if so then i would say u have a blocked heater core or a bad valve thats not moving when u switch it to hot,

back flow heater core with a garden hose to clear,

check to see if valve is moving if not then check the cable by releasing it off the valve and sliding it back and forth if it does not then replace the valve or cable.

 

Where is the heater core?

 

Joey, you need to buy or sign up to alldatadiy.com. The heater core is a radiator under you dash that supplies engine temp water that the fan blows across. If you have no heat it"s because the valve isn't opening to let hot water in, the fan is not working or the core is plugged. I assume you just bought this beauty, sometimes previous owners will crimp the heater hoses rather than replace a leaky core and you don't realize your dilema 'til the weather gets cold. For the most part this should be an economical fix once you do some troubleshooting.

 

Sorry, that should have said "buy a book or..."

 

Ok I did the flush on my heater core and a lot of crap came out and its blowing hot air now so I think that was the problem thanks