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International Automotive Technicians Network
Re: Dual Zone AC
Posted to HVAC Forum on 5/11/2011

Add about .25 to .5 lbs more than the OE charge indicated on the sticker.

What you have is an undercharged system. Same thing occurs with the heater, if the core is blocked, you only get heat on the passenger side. If you ever have the hvac box apart on thes... Login to read more.