+ Reply to Thread
Results 1 to 3 of 3

Thread: 2010 Sierra 6L80e slipping 5-6?

Hybrid View

  1. 10-02-2014 01:06 PM #1
    10GMCRC
    10GMCRC is offline Junior Member
    Join Date
    Nov 2013
    Location
    Canyon Lake, TX
    Posts
    4

    2010 Sierra 6L80e slipping 5-6?

    Transmission is slipping when going from 5th to 6th gear intermittently, seems to be getting worse though. Truck has 79,000 miles on it. I had transmission flushed with factory Dex 6, filter changed and added a trucool cooler after problem arrived. Dealer won't touch truck because its lowered, headers, and tranny cooler. Truck has been tuned by Nelson about 3 years ago with no issues. Could it be electrical? No lights and no codes. Bad factory converter? Truck has never towed anything, played around on streets yes, but no track. Any ideas?
    10 GMC R/C, 5.3, 3.42 Diff, Volant CAI, Kooks 1 3/4 Full lengths, Nelson tune, Flowmaster 50 series, TRU Cool 40K, 3/4 Drop Mcgaughys, 20" '14 Denalli replicas, 285/50R20 , 4 10" Rockford Fosgate P3S Subs, Rockford T1000-1BDCP, Rockford T600-4, Focal 35th anniversary components w/dynamat in doors. Gears, cam, converter soon!
    Reply With Quote Reply With Quote
  2. 10-04-2014 09:20 PM #2
    bud8fan's Avatar
    bud8fan
    bud8fan is offline turbo madness
    Join Date
    Jun 2004
    Location
    george west texas
    Posts
    3,694
    if it still under warranty take it to another dealer if not then buy you a new one...they a lil over 2000 with converter
    '13 silverado LT...stock

    '11 lt 4x4 z71..tvs1900

    '01 gmc twins 6.0 jakes 400 ladder bars w/ coilovers tuned by nelson performance
    Reply With Quote Reply With Quote
  3. 10-06-2014 08:48 AM #3
    10GMCRC
    10GMCRC is offline Junior Member
    Join Date
    Nov 2013
    Location
    Canyon Lake, TX
    Posts
    4
    Thanks for the reply bud8fan. I will try another dealer again. Price isn't as bad as I thought it would be.
    10 GMC R/C, 5.3, 3.42 Diff, Volant CAI, Kooks 1 3/4 Full lengths, Nelson tune, Flowmaster 50 series, TRU Cool 40K, 3/4 Drop Mcgaughys, 20" '14 Denalli replicas, 285/50R20 , 4 10" Rockford Fosgate P3S Subs, Rockford T1000-1BDCP, Rockford T600-4, Focal 35th anniversary components w/dynamat in doors. Gears, cam, converter soon!
    Reply With Quote Reply With Quote
+ Reply to Thread
« Previous Thread | Next Thread »

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts

Forum Rules