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   Oil Pressure-99 Suburban

   The oil pressure gauge on my 99 Suburban (K1500, 5.7L Vortec) fluctuates a lot. It will even drop all the way to 0 at times. It has plenty of oil. Any ideas? Bad gauge? Bad pump?

   • DallasFJ40
   • Thread
   • Apr 10, 2007
   • Replies: 0
   • Forum: GM/Chevrolet