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oil pressure gauge fluctuating

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  • #988719
    Bill DentonBill Denton
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      GM 4.3 150K miles.
      Oil pressure gauge is fluctuating.
      How likely is it the oil pressure sending unit?
      How likely is it the oil pump?

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    • #988720
      Nightflyr *Richard Kirshy
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        Please elaborate on your meaning of fluctuating.
        Do you mean the gauge is bouncing at any given rpm or are you seen a drastic drop in oil pressure once the engine is at operating temp ?

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