Front vents only blows cold air, rear vents operate correctly (blow hot and cold air based on setting). I have checked hoses running to heater and both, supply and return are fairly warm. Fuse for front heater is ok. Car has 102,000 miles and has gone through 100K service by the dealer in Dec.
Check you antifreeze level and make sure its full
the only other things associated with the heat are the heater core and the thermostat...maybe the thermostat isnt opening all the way to allow heat to the front...
id go with the thermostat first to see if that dosent help its the cheaper repair of the two about 10.00 if you do it yourself. its hard to tell on the heater core if its bad or not unless its leaking water out somewhere..the only other thing i can think of is the water pump....those are the three things most associated with the heating system. i forgot about the water pump or i would have mentioned it as well. but in any case try the thermostat first and see if it wont take care of the problem
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Yes, i did check that it is full.
Antifreeze/Coolant level is full.
Thank you for update, can you suggest how can I isolate between the two problems. .
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