Question about 2008 Nissan Pathfinder 4.0
P 1807 & P0720 transmission speed sensor malfunction
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Posted on Jan 02, 2017
i have the same problem 2005 xterra 4x2 giving pretty much all the code you posted but i did and tried everything possible to fix it myself with a little success but still ( Engine Light ) comes on with the last code P1757 front breake soleniod i did change the front passenger sensor but now the light came on again i believe the driver side need to replace as well ..... but weird the whining noise from the engine still there sound like i am going 120mph but actually im going 30mph only initiall problem was fixed by replacing the Transmission Oil 5 qrt S type from nissan dealer it did help for at least few months but then the problem came back... i also replace the Transmission Revolution speed sensor by doing that id just eliminate the code to pop up... i love my xterra but im getting really fraustrated everytime i see her in my garage colleccting dust not running.. dont want to spent a fortune rather thingking about trading it anyway like id said you might thingking replacing the Transmission oil that would maybe solve the issue.... GOOD LUCK....
Posted on Jun 12, 2010
A 5-speed Nissan Pathfinder uses a different type of transmission fluid from an automatic; therefore Dexron II is NOT okay. This vehicle uses "gear oil" --- specifically 75W-90 GL-4 if you have low mileage. 80W-90 or 85W-140 can be used if you are up there in mileage (closing in on 200K?).
This type of service needs to be performed from underneath the vehicle.
If you have a set of ramps, now would be a good time to get them out of the tool shed. Exercise care in driving up the ramps as they can be tricky with stick shift vehicles. Once on the ramp, put wheel chocks on the rear wheels, put the e-brake on, and if possible, keep it in gear (I use reverse).
Even without ramps, there is sufficient ground clearance from this SUV for you to check your transmission fluid. But then again, the more working room, the better.
On the transmission housing, you will find two plugs. One is at the bottom (drain plug), and one is higher up on the driver's side (fill plug). If you wish to add gear oil, simply open up the fill plug on the upper driver's side. If gear oil starts to seep out, don't bother adding any --- it's full. If no fluid comes out, stick your pinky in the hole and try to reach down and see if you can touch the top of the fluid level. Top it up, then. Gear oil usually comes in quart containers that have a long, pointed tip that allows you to "squirt" the stuff into the fill hole. Convenient, no? If the fluid level is so low that you can't even touch it, you might want to consider draining what's left (why add new gear oil to old sludgy gear oil? Otherwise, fill it up until it starts to seep out of the hole; then screw the fill plug back in.
I hope this helps; take care of your SUV.
Posted on Apr 04, 2011
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