Blower motor works fine , heater hoses are hot in an out of heater core. but can not get heat to dash at all, no defost or floor or middle. i think the problem is the actator. does anyone know the easiest way to get to it?
You must remove the dash to replace the temperature control blend door and its actuator, it is combination repair.
SOURCE: blower motor works, not pumping heat.
C, K, R & V SERIES
LESS A/C
WITH A/C
SOURCE: 1998 Chevy Tahoe doesn't heat up except when
Iv the engine is not getting up to operating temperature and it is full of coolant (50/50 mix of coolant and water) the thing to check would be the thermostat. Where the hose comes off the top of the radiator and goes into the engine block there will be a round top housing there very close that houses the thermostat. Take off the housing and remove the thermostat. Place the thermostat in a pan of water on the stove and heat the water. Watch the thermostat. If it does not open when the water gets hot it is defective.
SOURCE: 2001 tahoe front heater not working, rear heater blows warm air
I have the same problem with my 2001 Tahoe. The front blower is working, its blowing strong, but its cold air even with the temp setting as high as it can get. The rear blows hot air. The engine temp guage is at about 210ish which is close to being normal (220). I just replaced the thermostate a few months ago, I don't know if its bad again, or it I deluted the antifreeze too much and it frooze the heater core, or if the heater core just went bad. Any one know what the cause could be?
SOURCE: 92 chevy 1500 silverado Changed thermostat,heater
It sounds like your heater core is stopped up. try flushing it out, you can use a water hose. and if you cant get it to clean out then you will need to change the heater core.
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