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Discussion Starter #1
Hey new to the forum.
I've owned my 2005 Nissan Pathfinder SE Offroad for 14months or so, a little less than 95,000miles.
About 3 days ago I noticed when I accelerate my oil pressure goes to "high". I got home, shut off car and went inside, went out the next day and it was on "high" as soon as I started the PF before I even accelerated. it stays at high until its warmed up then goes to normal until I accelerate, as soon as I get to 2000-2250RPM's the needle is on the high position again.
the ONLY other issues I've had with it was the oil pressure would read low for 5-10min then go to normal for the next week, then say low, then normal for 2 weeks. so I'm completely lost as to what the problem may be.
a buddy said it could be the oil pump but he wasn't 100% sure.
If it is the oil pump, anybody know what it would cost to take to a dealership/auto repair shop?

Thanks
 

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you can do it yourself in about in 10 minutes. Just let it cool cause you will get some oil out of the port cause it is in line to a pressure feed to the heads. just be sure to use a little RTV on the threads. It's located on the passenger side of the block at the front. If you have 4WD it'll be a little cumbersome but still accessible.
 

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NF Mod/Nissan Master Tech
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Just make sure you get the right one. They used an oil sensor up through 2007 which was a 3-wire and then went to a 2-wire oil pressure switch later. The oil sensor was a bit more money then the switch.
 

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Discussion Starter #8
According to the website for the part that Outkast sent me. that "sensor" it for the 07-10 the 05-07 sensor is a different part number and its $75.26 (a little more money) but still better than the cost my buddy was thinking with a oil pump.
Just wanna make sure its the right part I need.

This is the part for the 05-07
Nissan Parts, NISMO and Nissan Accessories - Courtesyparts.com

Is this it?
 

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NF Mod/Nissan Master Tech
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Yeah, that's it. The 05-07 use an oil sensor, which means the gauge is actually a real oil pressure gauge. In 2008, Nissan went from an oil sensor to an oil pressure switch, so the oil pressure gauge is actually a "dummy" gauge. If the oil pressure is okay, the needle will be in the middle; if the oil pressure is too low, it will drop to zero. If the circuit or switch is shorted to ground, it will all the way to "high."
 

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I have a 2005 Nissan Pathfinder 4x4 SE.
I recently got this same issue where the oil pressure guage was stuck on high. I went to the dealer to get a OEM Oil Pressure Switch . Disconnected battery. When the car is lifted. The part is located before you get to the oil drain plug. I marked it in a picture for you guys. You need a 24mm socket to take off the switch. You will need drain oil before you start. The new part is on the left of the picture. I made sure I put teflon, and high temp gasket silicon on it to prevent a oil leak. Put the new one on snug but dont over tighten it, because these are easy to break. I spent $112USD for the part from dealer. Autozone charges around $70 to $90 bucks depending on where you live for the Duralast brand. But I'd recommend getting a OEM part when it comes to these parts. The oem part number is posted as well that came with the part.
 

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