expansion valve on 2003 Chevrolet Venture

Can you teell me were the expansion vale is located. i have had a mechanic replace my whole ac system and he had to re gas my system up about a week later but the gauges will go up to about 375 on the high side but the compresser will kick off then kick back on do you think this might have something to do with the expansoin vavle thanks.

by in Monticello, KY on July 30, 2010
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