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    1. #1
      Join Date
      Feb 2005
      Posts
      328

      Low miles sediment in pan

      I recently had to drop the pan on my 700r4 and noticed the bottom was coated with a thin layer of graphite colored sediment. The trans has less than 500 miles. Is some sediment normal for a new trans that is just being broken in?

      Should I be concerned?

      All the shifts seem fine, I am going to refill and take it for another test drive to make sure it holds each gear and down shifts as it should.

      I will come back with results tonight or tomorrow.
      Thanks.



    2. #2
      Join Date
      Nov 2004
      Location
      Roanoke, VA
      Posts
      515
      Quote Originally Posted by Jsapata
      I recently had to drop the pan on my 700r4 and noticed the bottom was coated with a thin layer of graphite colored sediment. The trans has less than 500 miles. Is some sediment normal for a new trans that is just being broken in?

      Should I be concerned?

      All the shifts seem fine, I am going to refill and take it for another test drive to make sure it holds each gear and down shifts as it should.

      I will come back with results tonight or tomorrow.
      Thanks.
      Some graphite looking stuff in the pan is pretty much normal but a pic of the pan with the gunk would help.
      GMC Syclone (currently wrecked thanks to the typical rubber headed VA driver not paying attention to his red stop light...oh and he didnt have insurance either)
      #614 11.9 @ 113
      New stuff finished 08/06:
      4L80E trans w/TCI PCM
      Front: J&S UCA/LCA, QA1 coil overs
      Rear: Caltracks/Belltech drop leaves
      Empire drive line alum drive shaft
      Polished 17x9 F/17x11 R ZR1s with 275s/315s
      Syclone
      Tow rig

    3. #3
      Join Date
      Jan 2007
      Location
      Bedford, PA
      Posts
      60
      the substance you refered to is carbon that is put in transmission fluid as its manufactured


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