Question about Nissan 350Z

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Oil pressure gauge and voltage meter gauge died on my 2003 nissan 350 Z, at the same time! Fuse?

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 64 Answers

SOURCE: changed oil pressure switch,still no oil pressure

The fuel pump on that model runs through the oil pressure switch so that if the truck looses oil pressure,It kills power to the fuel pump to prevent engine damage.you need to find the cause of the low oil pressure reading(possibly a bad oil switch).That would be the cheapest place to start,or have it checked with a mechanical gauge.Good luck,
ChevRev

Posted on Mar 30, 2009

SOURCE: oil pressure gauge stays at top, about 80 psi, is this normal

80 is on the high side for those... possibly a sending unit issue

Posted on Apr 19, 2009

  • 1 Answer

SOURCE: high oil pressure in my humer h2

If you had read the Owners Manual, the H2's Oil specification is 5w30 and not 10w30. I only know this because I own one. Before doing so please resort to owners manual to verify the oil type. This is what I would do but don't quote me. I am no H2 professional mechanic. I am very sure H2's technical problem may originate from the oil sensor. in turn it may affect the spark plugs (only) and oil filter. By changing out the oil, oil filter, spark plugs and oil sensor it should return to normal.

Posted on May 07, 2009

  • 59 Answers

SOURCE: low oil pressure 93 GMC P/U w/350 motor w/205,000 miles gauge

While engine is running, open the cover where you add oil to engine and see if you see a good flow of oil, if good flow, could be as easy as replacing oil sending sensor. got to realize that if poor maintenance history your engine may not be building enough pressure at iddle to move your hydraulic operated valves, only when you rev it up it will pump enough to run smooth. if running engine too long, you may cause more damage to other engine components such as crankshaft and cam shaft bearings. if you can spare a few bucks, have a good mechanic check your oil pressure with a mechanical gauge. another cheap option is to replace oil pump. last resort if you love your truck as much as we do,replace engine or rebuild it. At 205,000 this is a normal symptom, other than timing chain problems, most engines don't make it that far. hope this helps!

Posted on Mar 01, 2010

emissionwiz
  • 75807 Answers

SOURCE: where do i hook up an oil pressure gauge in a 350

the oil pressure port is on the rear of the engine block behind and center of engine near the distributor

Posted on Jun 09, 2010

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Need to know where the fuse is for oil sending unit on a 1998 Buick Park Avenue with a 3800 v6


There is no fuse for the oil sending unit ! Oil lite on , gauge not working ? Do you know what PCM five volt reference voltage is ? The PCM - engine computer supply's a stable 5 volt voltage to engine sensors . The oil pressure sensor is one of these sensors .
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Engine oil pressure is displayed on the scan tool in volts. A low voltage reading indicates low oil pressure. As the oil pressure increases, the voltage level also increases. The normal range of the engine oil level sensor signal voltage is 0.5 volts at 0 kPa (0 psi) to 4.5 volts at 883 kPa (128 psi).

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The check gauges light alerts you to the fact that one of the gauges is reading out of the normal zone. From what you have said I assume there is a problem with the oil pressure gauge in that it indicates the oil pressure is low. I suggest you remove the oil pressure sending unit and hook up a test gauge, see what the oil pressure really is. I suspect you just have a defective oil pressure sending unit.

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