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I have a 2008 Nissan Sentra se r with 177,000 mi. Driving it this morning on the highway, on cruise control, my oil pressure gauge started jumping up and down. What could be the problem?

Posted by Anonymous on

  • Robert Wood Aug 12, 2017

    Also , the pressure relief valve , if equipped , can be bad causing this .

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  • Nissan Master
  • 2,595 Answers

Sensor or gauge may be going bad . Trash in the sensor/sending unit . Low oil or clogged filter . Wrong viscosity or worn out oil .

Posted on Aug 12, 2017

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  • Nissan Master
  • 1,059 Answers

Hi
Are you referring to Engine oil light.
check the oil first.

Posted on Aug 12, 2017

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Posted on Jan 02, 2017

jmassengill
  • 345 Answers

SOURCE: OIL PRESSURE LIGHT COMES ON AND PRESSURE GOES TO 0 ON GAUGE

Any time the oil pressure is 0 you take a chance of locking up the motor. The only way to know for sure is to put a pressure gauge in the oil pressure sending unit port on the engine and see what the pressure really is. At that point you will either have the peace of mind in the knowledge that the sending unit is really bad and needs replacement or you can then contact a repair shop and tell them what your testing has revealed. I wouldn't drive or run your truck while the oil pressure is at zero.

Good luck

Posted on Nov 10, 2008

Molson02536
  • 3854 Answers

SOURCE: oil pressure problem

You oil pressure sending unit has gone bad, it's common to go bad and some even leak oil. 
The oil pressure sensor is on the back of the block on the passenger side, you can get to it from the top and not from the bottom. There are (2) switches back there that screw in to the block and you can only see it from the top of the engine. The Oil Pressure Sending Unit is the one wire harness with a green and white strip on it. The other switch has more wires to it. 
When you pick up the new sensor, make sure you get the right one. make sure you get the Oil Pressure Sending Unit which sends variable oil pressure and has only one quick connect for the wire connector. The oil pressure switch is the one that only activates the oil light on older engine
Once you get the right part at Auto Zone for around $9.00, disconnect the wire clip with the green with white strip on it. and use a deep spark plug socket with a extension and u joint to get the sensor out. The sensor comes with teflon tape already and no oil should leak out from the block. It as simple as replacing a bolt and reconnecting the wire connector. 
Good luck and hope this helps, take no more then 10 min to do but about 5 hours for the engine to cool off LOL

Posted on May 29, 2009

  • 316 Answers

SOURCE: The oil pressure gauge keeps dropping down to 0 while i am driving

If you don't hear any ticking or knocking while the pressure gauge drops, the problem is probably a failing "oil pressure sensor". If you do hear a ticking or knocking, the problem is probably a failing "oil pump".

Posted on Jun 03, 2009

  • 34 Answers

SOURCE: Come to stop 99 Ram oil pressure drops to 0 check gauges light.

Change the oil! The 318Cu in V8 (5.2 liter) engine has a problem with sludge build up on the oil pump pickup tube screen. This engine requires oil changes at or before 3500 miles with a high detergent oil.

Posted on Jul 07, 2009

  • 1779 Answers

SOURCE: I changed the oil on my 2008 nissan sentra 2.0

You should use the viscosity oil recommended in your owner's manual. Using a heavier weight oil can affect your fuel economy. If you overfilled the engine with oil, drain out a quart. Overfilling with oil will cause the oil to 'foam', and if this happens, you are not getting proper lubrication of components, which can result in damage to your engine.

Posted on Oct 16, 2009

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