View Full Version : HVAC issues
11-30-2013, 04:22 PM
I have a 99 Grand Am GT 3.4 with the following issues.
1. Blower only works on 5
2. Vent selector does change airflow
I already replaced the blower resistor and that did not solve the blower issue. Heat is produced and the temperature control works as well. Any ideas on where to go from here?
11-30-2013, 04:24 PM
maybe the control knob for selecting speed itself is bad?
12-08-2013, 04:42 PM
Tested the control knob and it functions properly. I'm thinking the vent selector is either a problem with the actuator or a vacuum leak. Anyone know of any common places to check. And i am still stumped on the blower issue. Thanks for the help
12-09-2013, 07:16 AM
As far as the vent selector goes my teenager tells me that the defrost was not working, after inspecting the selector knob it was not turning the shaft, it was just spinning around on the shaft but it didn't really feel that different from before, the little bushing had fallen out of the back of the knob that makes it fits tight on the shaft. Easy fix for me.
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