Ac leak in the evaporator area looses refrigerant in a week dye check reveals nothing,only area left is under the dash... expantion valve and assorted o rings are also in this same area.. can the expantion valve be removed from the engine compartment? or will it have to be removed with the evaporator? I don't know what the book time is for the evaporator but the ENTIRE dash area and all bracing and steering column and consol needs to be removed. anyone having leak problems with either part?

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The most common area of refridgrent leaks is the front seal of the AC compressor, the evaporator is the least likely.
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