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1990 f150
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  1. Ford F-Series, Ford Super Duty, Ford Diesel
    I have a 1990 F150 with the R12 to R134 conversion. I replaced every component and both hoses, and now I have a completely brand new A/C system. The problem is the pressure numbers are way off!! My low side is low and my high side is way too high. I’ve read quite a bit and all the information...
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