Why do I have ???? Four Question Marks on Oil Pressure gauge readout?

5

Asked by Guru9PMKQP Jul 09, 2022 at 12:16 PM about the 1999 Buick Park Avenue Ultra FWD

Question type: Maintenance & Repair

The oil light came on-never happens.  Oil is clean and crank case is short only

0.5 qt.  On the "Driver Information Center" the readout for oil pressure is four

question marks.  Drove it home, 4 miles with no knocking et al.  What is the

"????" trying to tell me?

1 Answer

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