oil leak

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  • Edev
    No R3VLimiter
    • Aug 2008
    • 3731

    #16
    Mine did the same..oil drops per second. At idle, it had a STEADY flow of oil..just at idle! My oil pressure switch was dead. It's plastic, so it over heats and cracks..and oil just spews out. Possibly check that out before you rip into your car. It's a 9 dollar part..and like 5 minutes to change. Maybe this is your issue..maybe it isn't. Just a thought.
    M Coupe

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    • allwheeldrive
      Wrencher
      • Jan 2008
      • 272

      #17
      From experience, the rear main seal, when bad, will leak after the engine has been shut off. I'd venture to say oil pan gasket based on your description, if it isn't coming from above and collecting on the lowest point.;)

      Comment

      • kamotors
        R3V OG
        • Nov 2007
        • 7102

        #18
        Originally posted by allwheeldrive
        From experience, the rear main seal, when bad, will leak after the engine has been shut off. I'd venture to say oil pan gasket based on your description, if it isn't coming from above and collecting on the lowest point.;)
        it leaks while its of,f just very slowly, when running its a steady stream, I"m going to keep looking around for clues, and hope its something simple


        7speedshop.com

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        • Edev
          No R3VLimiter
          • Aug 2008
          • 3731

          #19
          Originally posted by allwheeldrive
          From experience, the rear main seal, when bad, will leak after the engine has been shut off. I'd venture to say oil pan gasket based on your description, if it isn't coming from above and collecting on the lowest point.;)

          This will also happen if the oil pressure unit (or what I mentioned above) will also do this. If the car is off, it drips. If the car is on, a lot more oil comes out. Kamotors, check yours so you won't have to rip into your motor/tranny. I thought it was my oil pan gasket. I changed that. NOpe, didn't fix it. Then I was thinking it was the rear main seal. Thank GOD I checked out the oil pressure unit.


          Put the front of your car on jacks. Get in the car. Start it. Leave it at idle, then raise the rpms. Have someone with you either in the car while you're looking under the car...or vice versa.
          M Coupe

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          • mattdk318i
            No R3VLimiter
            • Jun 2006
            • 3953

            #20
            Rear main seal....
            sigpic

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            • kamotors
              R3V OG
              • Nov 2007
              • 7102

              #21
              where exactly is the oil pressure switch located?


              7speedshop.com

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              • Sean
                R3V Elite
                • Oct 2003
                • 5793

                #22
                Originally posted by kamotors
                where exactly is the oil pressure switch located?
                It's located below (really close to) the oil filter. It's the only sensor going into that side of the block. Faces downwards. It's also possible that there's no crush washer in there, as that would allow some leaking possibly as well.
                -Sean
                - Sean Hayes

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                • Edev
                  No R3VLimiter
                  • Aug 2008
                  • 3731

                  #23
                  Originally posted by Sean
                  It's located below (really close to) the oil filter. It's the only sensor going into that side of the block. Faces downwards. It's also possible that there's no crush washer in there, as that would allow some leaking possibly as well.
                  -Sean
                  Oops, I haven't checked this thread lately. But yes, this is where it's located at. Good luck kamotors!
                  M Coupe

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                  • nando
                    Moderator
                    • Nov 2003
                    • 34827

                    #24
                    the oil pressure switch can also leak through the body of the switch as well. it's definitely worth checking out.
                    Build thread

                    Bimmerlabs

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                    • kamotors
                      R3V OG
                      • Nov 2007
                      • 7102

                      #25
                      well, I don't like using stop leak stuff, but it was my last resort. I used bars rear main seal stop leak, and so far I've driven 100 miles and my leak is now about 75% smaller. After 2 hours of watching the car leak the spot was the size of a quarter instead of a cheeseburger:)


                      7speedshop.com

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                      • Goya20
                        Grease Monkey
                        • Feb 2009
                        • 325

                        #26
                        i have the same thing its the oilpan gasket
                        sigpic

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