2001 Chevy Impala V6
Repairs= Changed the Heater and A/c blower motor and the cabin
vents.
Question = Ok so I recently brought a 2001 Chevy impala and I love
it but the a/c and the heater aren't blowing well. I took it to the
mechanic and without looking at it he said, if its blowing cold but not
hard its the blower motor. With that being said I installed a new
blower motor and I fired it up and I had the same problem, so now I'm
back to investigating. The dial that controls the speed works well but I
noticed that the dial that changes the direction of airflow doesn't
work. The airflow to my feet is good but the airflow through the dash
vents are poor. Please help!:(
With any advice could you please provide a brief tutorial or
something, I'm sort of a DIYer. Thanks so much in advance.
Answer: Sounds like you have a mode door actuator problem. That
can affect the airflow you feel as well. The actuator is bolted to the
outside of the heater case and attatches to the mode door that is
inside the heater case which control the direction of flow from floor to
vent to defrost. To inspect or repair this actuator, you need to remove
the lower dash trim on the left side of the dash. A few 7mm screws
and push in clips is all that hold most of it on. Once the lower panels
are removed you can get up under there and look to find the
actuator/door on the side of the heater case. If you have dual zone
temperature control, be sure not to confuse the left side temperature
actuator with the mode actuator as they look the same.