LOW TO NO OIL PRESSURE

  • Tiny
  • davekoile
  • 1998 Dodge Ram
  • 191,000 miles

My oil pressure reads 40 lb. Most of the time, when I drive it the oil pressure drops to 0 lb. Il stop the engine and start back up again and it reads 40lb. My question is, DO OIL PUMPS TURN ON AND OFF. I DID REPLACE MY OIL FILTER and the pressure was better then ever.10min later it droped to 40lb and then back to 0lb. PLEASE HELP

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Saturday, April 27th, 2013 AT 3:04 PM

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  • Tiny
  • hmac300
  • Expert
  • 44,449 posts

Before you get all socked about a motor going bad, check this with a manual pressure gauge it could just be the sending unit or an electrical problem. Oil pumps have a relief valve in them to maintain certain pressure with a good engine. Also I only recommend napa, Purolator, Bosch, or Wix filters.

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Saturday, April 27th, 2013 AT 3:20 PM

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