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06-02-2005, 11:05 AM
Purchased 86' 300E back in late Nov. First chore was to get A/C system correct and convert to 134R. Replaced compressor, accum/dryer, expansion valve, all fan and pressure swiches as well as A/C relay. Worked like a champ until about 2 weeks ago. Initially holding 30 - 40 lbs. on low side. now, 90 - 110. Have completly flushed evaporater, condenser, all lines, replaced accum/dryer and expansion valve again. Even had local source for rebuilt compressor give up another one at no charge.

vaccumed system down and put in charge of 134a. and back to the same hi pressure on the low side. any ideas out there on what could be causing this? used "sniffer" last night and found leak at front seal on compressor. removed it and will get another replacement today.

all suggestions/help is appreciated. It's getting on the warm side here on the gulf coast.



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