I used a High/Low pressure switch on my system in 2007. My system is still running with no issues. I am still using freeze-12. The compressor is a Hodyon/Hancock Industries bought brand new, not reman, through NAPA. I did replace the drier and expansion valve and flushed the entire system. I used BG Frigiquiet oil as well.
I did come across the Sanden 508 mounting bracket so that when the current R4 dies, I can use the Sanden.
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RRGrassi
70's Southern Pacific #5608 Fairmont A-4 MOW car
13 VW JSW 2.0 TDI 193K, Tuned with DPF and EGR Delete.
99 W210 E300 Turbo Diesel, chipped, DPF/Converter Delete. Still needs EGR Delete, 232K
90 Dodge D250 5.9 Cummins/5 speed. 400K
Gone and still missed...1982 w123 300D, 1991 w124 300D
Last edited by rrgrassi; 05-31-2012 at 12:48 PM.
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