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Power Strokes
94-97 Tech
Ac weak at highway speeds
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[QUOTE="Tiha, post: 1563869, member: 33189"] I suppose it is possible. seen some weird stuff over the years. Watched the accumulators freeze up. (on big trucks they are before the evap. Not like cars where it is after. Seen condensers freeze up half way across. When you see those things it means there is a restriction in the accumulator/drier or condenser. That is why I always go with a temp gun or just by hand. Feel the system from compressor pressure to return. If the line going into the expansion valve or orifice tube isn't hot then you have a restriction upstream somewhere and you have lost a good portion of your cooling capacity. Same goes for after the evap. If it gets colder between the evap and compressor you are either overcharged or you have a restriction after the evap which would defeat the orifice tube or expansion valve. [/QUOTE]
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Ac weak at highway speeds
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