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oil pressure?

Discussion in 'The Garage' started by jville91ck5, Apr 11, 2006.

  1. jville91ck5

    jville91ck5 Registered Member

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    what is the "normal"oil pressure for a 1991 350 TBI 114k miles.

    I'm getting just under 30 at idle.and not much more at 75 mph.
     
  2. 1979jimmy350

    1979jimmy350 1/2 ton status

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    if you are going off the gague in the cluster you might want to check your oil pressure with a mechanical gague first because the stock ones thend to go bad and give false readings, check it first with the mechincal gague then if it is still low you can go from there to figure out your problem
     
  3. Chevy305

    Chevy305 6 Lug 14bsf Status Premium Member GMOTM Winner

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    After many miles of service, the oil pump gears can wearout so it doesn't pump as hard or as efficiantly. My oil pressure on my 83 305 is about the same as you describe.

    But also he has a good point, the sender unit can be bad.
     

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