1995 Tahoe 4 door v8.
My ac blows weak. It is very cold, has need blower motor act if a door is not opened all the way or a blockage in system...
I am going to need a little more info. No sure if you have a fan speed problem.
Did you replace one of the actuator door motors? Which one.
Any more detailed info. You can give me will help me to diagnose your problem.
No all i have changed is the fan motor. It runs all speeds. I removed and switched speeds. I can hear doors moving in dash. It sounds like it is blowing against a closed damper. Very little air flow at vents. I change motor hoping to fix but did not change air volume....
Having a little trouble with this one. Checked for service bulletins- none. Ask a couple of the other Tech's. We come up with a few possibilities-
First make sure that the air flow is just not directed to the defrost or floor. That would indicated improper mode door operation.
We have had problems with the a/c evaporator core getting plugged with dirt on early to mid 90's cars, but not in trucks. What happens is, the evaporator core leaks freon and oil and attracts dirt. The airflow will slowly be reduced over time. The evaporator core is the first thing that the airflow passes.
If it just all of a sudden happened, by the door diagram- there is no 1 door that can prevent airflow, it would just be directed somewhere else (deforst or floor)
It is possible that something is blocking the evap core- paper or something.
Chevrolet Tahoe A/C Air Blows very Slow From Dash Vents
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