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Old 09-19-2017, 09:08 PM   #1
slo87
 
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Default Oil leak in drivers floorboard

Just as my title states I had my truck carpet cleaned and a few days later my oil spots in the drivers floor next to the accelerator pedal came right back and a drought smell of oil if left in the sun all day. It smells worse than a speedy lube grease pit. Can clean it back up and a few days later it comes back even if the truck isn't driven. Do I have a oil pressure hose going to my light that could be leaking? I do not have any aftermarket gauges except a gps stuck to the windshield for a speedometer.
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Old 09-19-2017, 09:53 PM   #2
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Are you sure it's oil? Unless it's aftermarket and installed by a previous owner I've never seen a mechanical oil pressure gauge installed.

I'd look at the clutch master cylinder to see if it's leaking. When it leaks the fluid comes into the cab.
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Old 09-19-2017, 10:08 PM   #3
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It's way heavier than brake fluid. Is it even possible the speedometer cable is wicking oil from the transfer case all the way up to my dashboard?
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Old 09-19-2017, 11:23 PM   #4
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un screw the speedometer cable from the trans and see if any oil comes out of the cable, easier than pulling the gauge cluster out to check that end.
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Old 09-19-2017, 11:33 PM   #5
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There is defiantly oil in it it's soaked on the t case end.
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Old 09-20-2017, 12:15 AM   #6
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on the speedo pinion there should be an o-ring and a seal.... dug up the oem pt#'s
32709-14600 (seal), 32710-14600 (o-ring) hope it helps
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Old 09-20-2017, 01:22 AM   #7
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Thank you yepee tuscaloosa Nissan parts dept is either lazy or retarded. I'll call them tomorrow and check availability on those numbers.
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Old 09-20-2017, 03:13 PM   #8
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they are both still available
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Old 10-12-2017, 10:14 PM   #9
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Hey Slo87

check the breather on your tranny case, as well as the level on your tranny oil. assuming this is a standard tranny, there should not be much oil back at the speedo gear. it is a splash lube and the oil should be gravity returning to the sump end. If the oil level is too high you can get excess oil back there and it could be wicking up the cable. A failed cable seal would exacerbate the problem.
The breather , while less likely, can slow gravity return of the oil.

Best of luck.

Peace, Wolf
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