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Topics: 1995, Buick, Location, pressure, Skylark, Switch
It is very likely that considering the age of this car that your oil pressure RELIEF valve is jambing up from excessive sludge, and that the oil pressure switch is telling the truth!!! Try a good de-sludging agent, like Amzoil crankcase cleaner, and begin using synthetic oil like Mobil One, ELF or Amzoil. Chances are this problem will dissipate.
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