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Dual Zone Climate Control –*Driver Side Blows Hot or Cold, Pass Side Blows Normal
I've driven my 2017 Camaro 2LT V6 for about 60,500 miles now, and just recently replaced the thermostat and engine coolant temperature sensor.
It first encountered the thermostat issue at around 40,000 miles (where sensor stops reading and thermostat fails into open position running fan full speed). It did that once or twice and I figured it was a fluke deal because it never did it again until 60,100 miles (quite convenient). It proceeded to repeat at least 5 times, so I ordered new parts and replaced them myself.
Whilst all this was happening, I started noticing around 50,000 or so miles that my driver side dual zone climate control vents only blow hot or cold air, while the passenger side blows correct temp. For example, on a cold day, I would crank the heat to warm up the interior, then drop it down to 72 or so, that way I don't cook myself. However, the car continues to blow 90 degree air, only on the driver side. The passenger side works fine and feels like it's blowing out the correct temperature air. If I continue to slowly turn the vent cooler, it won't respond until about 65 deg or so, at which point it slowly lowers temperatures until it reaches the lowest temperature. It's almost as if it only blows air at the two extremes.
Regarding the thermostat issue, I heard that climate control/heating issues could also happen when a thermostat or sensor fails, so I was partly expecting that this problem would fix itself after I fixed the thermostat, but to no avail. Going into a cold winter in Oklahoma, I'd like to see if I could find the cause of this issue so I can get my climate control working again.
I've done some preliminary research and there are some mentions of just recharging the A/C. Others say that there are temperature sensor(s) in the interior of the car (where, though?) and I've seen mention that it could be the blend door actuator on the driver side.
Has anyone encountered this issue before and/or knows what it could possibly be?
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