Why does oil pressure switch go bad?
Why does oil pressure switch go bad? Damage to the wiring harness, a corroded plug, or simply an unplugged connection could be the culprit. Once more, it is important to rule out actual low oil pressure by checking the dipstick and listening to your engine. How to convert an R12 compressor to a R134a? R12 to R134a Conversion steps. The first step is first to make sure that the AC system is empty. Discharge and make sure to recycle it properly. Make sure your AC compressor is in good shape, otherwise replace it. Flush your current system entirely of R12...