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· Banned
2004 gmc
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26,436 Posts
Have you recently discharged your battery or swapped it out? Trailvoys are notorious for having a misdesigned HVAC actuator (used for temp, airflow mode, and so forth) that works just fine until the control module loses its memory when you replace the battery. Then one or more of them mess up during recalibration and have to be replaced.

Run a search for "temp actuator" or "Mode actuator" and read up for a bit. If you're not a DIY kind of person, and take it to a mechanic, do NOT accept any claims that they have to remove the entire dash for $1000 to swap it.

What's gone bad for you is the driver's side temp actuator.

 

· Registered
2002 olds bravada
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181 Posts
I too am having this issue. I have no recent battery swaps or power issues. Mine seemed to happened after I switched from a/c off to a/c on now no a/c on my side(drivers). This is very difficult to deal with since the passanger side does not blow enough to cool the vehicle. I have little luck when It comes to dash issues but also may have an a/c leak problem and not knowing where it is coming from hopefully not the evaporator which I believe is in the dash of hell. So any recommendations would be gladly appreciated.
 
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