I have two questions, if anyone is willing to answer them, about a 2005 Chevy Trailblazer extended.
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My AC reads 45psi on the low side, which my can of r-134a says is ‘full’, yet the air isn’t coming out very cold. Under the hood, it says I need 1.8 lbs for front and 2.65lbs for front and rear. What is ‘front’ and ‘rear’? I thought I just put the r134a in the low end until it reads about 40-45 psi. The can of r134a I have is only 1.2 lbs I think, but the car is at 45 psi when running max cold AC. Can someone please explain how this works and how much to add and how the psi figures into all of this?
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I believe there is something wrong with my climate control system in this trailblazer, but am not sure what it is or what to do since I have never had a car with dual climate control. The drivers side always spits out hotter air than the passenger side. What would this be and is it something that I could fix myself fairly simply? I assume it is just a sensor. Am I correct?
Thanks!
Braden