Hello I own a 2000 Chevy Blazer 4WD with automatic climate control and have no heat. I recently replaced the heater core so I suspect that its the Blend Door actuator now I dont have the space or time to take this out to fix it so I was wondering if there is a way I could potentially bypass it and manually close the door against the a/c to prevent it from getting cold? Any suggestions comments or tips are helpful if you have any questions ill be checking frequently as its like 30 degrees here and I need heat