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  1. #11

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    okay
    1. Expansion valves don't open or close but are a restriction allowing the liquid freon to convert to a gaseous state.
    2. If your have rear heat AND rear air which im sure you do could be as simple as the blend door will not close off the rear heat,which would account for cold
    up front warm in the rear.Hell get a chiltons find out where is at and ck..some zip ties till winter
    3. Everyone could be right could be a clogged expansion valve but if that is the case your low side pressures should be way off. Whats the ambient temp and
    what type of pressure are you getting on the low side.This pressure may take a sec or two you have a lot of AC line in that set up.

  2. #12

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    Quote Originally Posted by BobEhud View Post
    ...Expansion valves don't open or close but are a restriction allowing the liquid freon to convert to a gaseous state...
    For those of you who haven't studied up on a/c before, this is correct. It is the part that creates more or less restriction for the freon at the point it changes from liquid to gas. However, they are known for being a weak point in a/c systems, as they can get easily clogged.
    I like you.

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