Driver Side HVAC Actuator - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum



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  #1  
Old 08-29-2019, 05:23 AM
kherfan kherfan is offline
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2008 Chevy TrailBlazer LS
Silver Mist Metallic 4.2L I6 2WD
Join Date: Aug 2019
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Question Driver Side HVAC Actuator

Hi,

first I'm new in there and I'm grateful for the forum community.

i have trailblazer 08 that started blowing hot air from passenger side and cold air from passenger side when turning A/C on.


i tried all the calibration, battery off but it seems that i need to change the actuator based on research on the forum.

my question is what is the correct OEM part number for the actuator, also are the ac delco 15-73596 and 15-73598 interchangeable?


and just to be sure is it the bottom actuator that is near the radio or the far up in there.

Thanks in advance guys
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  #2  
Old 08-29-2019, 12:30 PM
EnvoyBoy2004's Avatar
EnvoyBoy2004 EnvoyBoy2004 is online now
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2004 GMC Envoy SLT
Graphite Metallic 4.2L I6 4X4
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The temp actuator is the one closest to the driver.

The two part numbers you mention are not interchangeable. The 15-73598 is the Mode actuator.
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