Tungsten Posted May 19, 2009 Share Posted May 19, 2009 After driving my truck for a few miles, I have noticed a small oil leak coming from under the pan area. I don't know what it is yet but it looks like engine oil. Is this a common problem somewhere? Any thoughts before I go to the shop? Link to comment Share on other sites More sharing options...
Tungsten Posted May 19, 2009 Author Share Posted May 19, 2009 well this morning i found out that i am loosing brake fluid and the rear right disk is slightly squealing when the brake pedal is half way down could it be the brake master cylinder???? Link to comment Share on other sites More sharing options...
unccpathfinder Posted May 19, 2009 Share Posted May 19, 2009 to check to see if its the master cylinder look at the base of the MC right at the brake booster and if there is fluid coming out right there (location of the weep hole) then yes the MC is bad. check the rear pads for wear but Idont think low fluid would make them squeak as for the initial leak mentioned try and follow the trail of fluid to the original location...it may be beneficial to clean it all off and look for fresh oil. Some of the common leaks are the valve cover gaskets. If not then it could be the pan itself, oil pres sending unit, RMS or the FMS Link to comment Share on other sites More sharing options...
Tungsten Posted May 19, 2009 Author Share Posted May 19, 2009 RMS? FMS? whats that? and the trail goes to the front diff :S that can't be it... Link to comment Share on other sites More sharing options...
nunya Posted May 19, 2009 Share Posted May 19, 2009 Oil filter on tight? I see that alot(not on Pathfinders specificly, just in general) Link to comment Share on other sites More sharing options...
unccpathfinder Posted May 20, 2009 Share Posted May 20, 2009 RMS? FMS? whats that? and the trail goes to the front diff :S that can't be it... rear main seal, front main seal Link to comment Share on other sites More sharing options...
Tungsten Posted May 21, 2009 Author Share Posted May 21, 2009 Upon a closer examination, the oil leak was coming from the bottom of the transmission where it is connected to the engine. I wiped the area with a rag to check it out and it appears that it could be coming from the drain plug. Could it be the drain plug? After cleaning the area out, starting the engine and driving in a circle, there is no more leak. If it comes back I am suspecting that when the oil was changed the drain plug was not torqued correctly. The manual specifies the tightening torque to be 22 to 29 ft-lb. on the drain plug. As for brakes, nothing is leaking right now but when I topped off the container to the max level with DOT 3 brake fluid the BRAKE light on the dashboard came on (my handbrake is down). I will do some more observations on that but I am sure it could be the Master Cylinder. The MC was replaced around 2 years ago and I am suspecting that the replacement part could be crap. I could not find any weep holes on there but there is a probe inserted below the fluid container. Could that be the weep hole probe or something? Link to comment Share on other sites More sharing options...
Precise1 Posted May 21, 2009 Share Posted May 21, 2009 It may be torqued correctly, but the washer/seal is shot. Make sure to replace it next oil change (any automotive store will have them). B Link to comment Share on other sites More sharing options...
Tungsten Posted May 22, 2009 Author Share Posted May 22, 2009 Thanks B I could not find any weep holes on there but there is a probe inserted below the fluid container. Could that be the weep hole probe or something? This is actually a reed switch, I bet the float is stuck, will give a few whacks on the container... Link to comment Share on other sites More sharing options...
Precise1 Posted May 22, 2009 Share Posted May 22, 2009 You are welcome. Check the wire connection for the MC also... B Link to comment Share on other sites More sharing options...
Tungsten Posted May 26, 2009 Author Share Posted May 26, 2009 well taking the reed switch out and cleaning it made the light go away lol Link to comment Share on other sites More sharing options...
Tungsten Posted August 22, 2009 Author Share Posted August 22, 2009 (edited) arghf the crossmember is still getting soaked in oil someone plz tell me its not the oil pump seal like on doctorbills i had the timing belt done and the cam seals replaced already also, new master cyl for brakes and new drain plug i swear its turning into a ford i wanna go blow something up now Edited August 22, 2009 by Tungsten Link to comment Share on other sites More sharing options...
beavis0076 Posted August 22, 2009 Share Posted August 22, 2009 it must be a boy... its just markin its spot... Link to comment Share on other sites More sharing options...
jadm4x4 Posted August 22, 2009 Share Posted August 22, 2009 my master cylinder used to leak. then it sat for a few years. and for some reason it doesnt anymore...lol Link to comment Share on other sites More sharing options...
Tungsten Posted August 22, 2009 Author Share Posted August 22, 2009 i'm thinking oil pan gasket it only leaks when i'm standing still, there is no oil trail behind me or anything like that the oil pan and the crossmember is wet with oil i don't see anything else will check the bottom of my timing cover soon just to be sure (it better not be the oil pump gasket ) Link to comment Share on other sites More sharing options...
jgt Posted August 24, 2009 Share Posted August 24, 2009 (edited) i'm thinking oil pan gasketit only leaks when i'm standing still, there is no oil trail behind me or anything like that the oil pan and the crossmember is wet with oil i don't see anything else will check the bottom of my timing cover soon just to be sure (it better not be the oil pump gasket ) I had a leak from the oil pan gasket. I thought it was the rms, but my guess was the rubber gasket got pinched when the 2nd clutch was installed. Edited August 24, 2009 by jgt Link to comment Share on other sites More sharing options...
Precise1 Posted August 24, 2009 Share Posted August 24, 2009 i'm thinking oil pan gasketit only leaks when i'm standing still, there is no oil trail behind me or anything like that the oil pan and the crossmember is wet with oil i don't see anything else will check the bottom of my timing cover soon just to be sure (it better not be the oil pump gasket ) Have you tried tightening the oil pan bolts? The torque is light (something like 8-12 ft/lbs or something), I'l have to look it up for you. My auto tranny pan was weeping when I bought it, spent 10 minutes with a 1/4" drive 10mm socket and problem solved. B Link to comment Share on other sites More sharing options...
GrimGreg Posted August 24, 2009 Share Posted August 24, 2009 Just stick a tampon on it! Link to comment Share on other sites More sharing options...
KovemaN Posted August 25, 2009 Share Posted August 25, 2009 If the leak appears to be coming from the bottom of the tranny on the engine side I would say it's a rear main seal. That has been a consistent oil weeper on all of the Nissan D21/WD21s that I have replaced clutches on. It can probably wait until you need a clutch unless it's leaking profusely. The leak can shorten the life of the clutch though. Link to comment Share on other sites More sharing options...
Tungsten Posted August 25, 2009 Author Share Posted August 25, 2009 Looks like it is the RMS and I have an auto so there is no clutch. Link to comment Share on other sites More sharing options...
Tungsten Posted September 3, 2009 Author Share Posted September 3, 2009 Got a quote at the shop today for doing the RMS, came to about $700. Link to comment Share on other sites More sharing options...
Precise1 Posted September 4, 2009 Share Posted September 4, 2009 Sounds about right. It'll cost you the price of the seal+inconvenience if you can/do it yourself... B Link to comment Share on other sites More sharing options...
Tungsten Posted September 4, 2009 Author Share Posted September 4, 2009 Transmission? We don't need a transmission! Link to comment Share on other sites More sharing options...
Tungsten Posted September 4, 2009 Author Share Posted September 4, 2009 ...and DONE!! FYI, the awkward vibrations stopped after changing the seal Link to comment Share on other sites More sharing options...
shadylurker Posted September 11, 2009 Share Posted September 11, 2009 ...and DONE!! FYI, the awkward vibrations stopped after changing the seal how much of a PITA is the seal to change? Link to comment Share on other sites More sharing options...
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