Question about 2005 Nissan Armada

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What are some cause of oil flow restictions

My 2005 nissan armada has suddenly started loosing oil pressure. gauge goes all the way to left making the oil lite come on(praying it is not oil pump) could it be the strainer or one of the hoses goint to the oil cooler or could the cooler be bad......need help in alabama

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  • Nissan Master
  • 21,873 Answers

Assuming the crankcase is full of oil, I doubt the cooler would cause a drop in pressure. Only a small percentage of oil flows thru the cooler.
It could be the pump or strainer, but could also be worn bearings.
The first thing you should do is have the pressure checked with a mechanical gauge to make sure your electric gauge is correct.

Posted on Jan 11, 2013

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Posted on Jan 02, 2017

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  • 518 Answers

SOURCE: 2005 nissan armada oil gauge

no,,, fluctuations mean =low oil pressure,oil level low,oil old or too thin viscotly,oil pump loosing or not develloping the correct pressure
pressure release valve spring weakened

Posted on Jul 06, 2010

daltonp
  • 361 Answers

SOURCE: 1984 nissan 300zx oils pressure gauge goes to

Sounds like an electrical problem, make sure the ground leads to the engine are good and the battery terminals are clean. It might just be a bad connection in the wiring harness try jiggling the connections to see if it makes the gauges jump when it is running.

Posted on Jul 20, 2010

  • 67 Answers

SOURCE: I have a 2004 nissan

Check the oilpresure transduser.

Posted on Apr 25, 2011

Ironfist109
  • 3018 Answers

SOURCE: My 2005 Nissan Armada is

  • Well it could be a bad oil pump or a bad Oil Sending Unit. If you have an oil pressure gauge you can pull the sending unit and stick the pressure gauge in there and see what the reading is. I would thing 60PSI would be suitable.
  • I believe this Oil Sending Unit is on the front (possibly the back) of the oil pan.
  • Just remove the connector and put a wrench (or a deep socket) and twist it out and replace with a new one.
  • Make sure the oil filter is snug and not leaking as well.
  • Check your oil level too and make sure it is properly filled.
  • Good luck and thank you for using FixYa.

Regards, Tony

Posted on Jun 13, 2011

  • 94 Answers

SOURCE: have a 1986 nissan 300zx V6 non turbo wont start,

a oil gauge reading maybe delayed until car starts and builds good oil press.Did you check for spark
was car running good before this happened? Do you have a rpm reading when cranking car?

Posted on Nov 02, 2011

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When you say it was "normal" with the engine off and the key on, do you mean normal as 40-50 psi, or normal, as 0 psi since the engine was off and there should be no oil pressure? This is important because if you are reading 40-50 psi with the engine off, it is not surprising that the gauge goes "too high" once you start the engine. If the gauge is at 40-50 psi with the engine off and the key on, then there is a problem with the gauge or the sensor. It is not an overpressure issue. As long as the engine seems to be running normally otherwise and is not clacking internally or other such things that would indicate oil pressure issues, I would feel safe using the vehicle until I could have the oil pressure circuit diagnosed and repaired.

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My 2005 Nissan Armada is reading oil pressure abnormally high. The gauge is maxed out.


  • Well it could be a bad oil pump or a bad Oil Sending Unit. If you have an oil pressure gauge you can pull the sending unit and stick the pressure gauge in there and see what the reading is. I would thing 60PSI would be suitable.
  • I believe this Oil Sending Unit is on the front (possibly the back) of the oil pan.
  • Just remove the connector and put a wrench (or a deep socket) and twist it out and replace with a new one.
  • Make sure the oil filter is snug and not leaking as well.
  • Check your oil level too and make sure it is properly filled.
  • Good luck and thank you for using FixYa.

Regards, Tony

Jun 13, 2011 | 2005 Nissan Armada

1 Answer

1984 nissan 300zx oils pressure gauge goes to


Sounds like an electrical problem, make sure the ground leads to the engine are good and the battery terminals are clean. It might just be a bad connection in the wiring harness try jiggling the connections to see if it makes the gauges jump when it is running.

Jul 20, 2010 | 1984 Nissan 300ZX

1 Answer

2005 nissan armada oil gauge


no,,, fluctuations mean =low oil pressure,oil level low,oil old or too thin viscotly,oil pump loosing or not develloping the correct pressure
pressure release valve spring weakened

Jul 06, 2010 | 2005 Nissan Armada

1 Answer

Oil pressure needle at H


sounds like an oil pressure sening unit un plug it whilf its running and see if the gauge goes too zero,if not then the prob is the gauge, the sending unit is only about 15.00 at auto zone and easy too put in

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