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bad Oil pressure gauge?

Discussion in 'Chevy Silverado Forum (GMC Sierra)' started by kdr358, Aug 21, 2010.

  1. kdr358

    kdr358 Member

    I just bought a 1988 GMC sierra Classic 3500 dually 3+3 sequoia Camper Special. Its got 91,000 original on it. The truck has 91,000 miles on it and while the truck is running the oil pressure gauge sits at 60 when the motor is cold when it warms up it will flicker between 35psi and 60. and will do it all the time. Is it just a bad gauge or something else?
  2. blizzconwar

    blizzconwar New Member

    my 2010 does the exact same thing.
  3. murdog94

    murdog94 Epic Member 5+ Years 5000 Posts

    Most likely the sending unit is bad and once warm sending an improper signal.

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