My 92 chevy 1500 heater doesn't blow very hot air. It is barely warmer that normal air. I have flushed heater core, new thermostat, and had radiator flushed. Only other thing I can think of is possibly blend door, but its a pain to get to and don't want to replace it if not needed. Any suggestions?
Whats your temp guage reading?
SOURCE: No Heat for 2001 Chevy Blazer
All I did with my 1999 blazer is pull the a/c fuses from under the hood and heat blows just fine.
good luck
SOURCE: 2000 Chevy Silverado 1500 The heater does not
Had the same thing happen to my truck, the blen door actuator is under the console on passenger side, but the heater core is going to be clogged if you dont have any heat coming through, but a/c works..
SOURCE: I have a 2000 Chevy Silverado pickup, and the
once truck is warm check both heater core hoses to make sure they are both warm if not then check the cold water valve could be stuck shut not allowing coolant to travel in to heater core.
SOURCE: "78 Chevy Scottsdale 4x4 400 small block. I
You may have a heater valve that is on one of your heater core hoses may be bad.
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