Results 1 to 4 of 4

No Fourth Gear!

This is a discussion on No Fourth Gear! within the Manual Transmission forums, part of the Drivetrain category; I for some reason cannot shift into fourth. Clutch or no clutch it just grinds. I can sometimes get it ...

  1. #1
    Another day Another 5th ARM5280's Avatar
    Join Date
    Oct 2005
    Location
    Raleigh, North Carolina
    Age
    41
    Posts
    368

    Black
    Murdered 2006 GMC Sierra

    No Fourth Gear!

    I for some reason cannot shift into fourth. Clutch or no clutch it just grinds. I can sometimes get it in if and only if it is while slowing down. All other gears work perfect and I have never had any tranny probs. HELP!!!

  2. #2
    2004 HEAD/CAM CTS-V 9t8z28's Avatar
    Join Date
    Oct 2006
    Location
    doylestown, Pa
    Posts
    6,818

    SILVER
    2004 CTS-V

    Sounds like an internal transmission problem. Need more info!

  3. #3
    Member
    Join Date
    Aug 2005
    Location
    metro Detroit area
    Posts
    300
    Your 3/4 shift fork is wallowed out and preventing a full engagement of the synchro sleeve( what gets the gear). This is a well documented problem and the fix is as well= replace the fork with an iron one. It will require a full teardown of the trans.

  4. #4
    The Bandit Wesman's Avatar
    Join Date
    Apr 2006
    Location
    NJ
    Posts
    4,033

    SGM
    1998 Trans Am WS6

    Is your 3rd gear fine, i.e. it goes in smoothly all the time and doesn't pop out?? Because a bent or damaged shift fork will usually affect both gears it controls, so if the 3/4 shift fork is damaged, both gears should be having issues. It is possible that is only affects 4th gear, but its less common.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. My fourth gear is mest up wat can it be?
    By LS1IVANSS in forum Manual Transmission
    Replies: 2
    Last Post: 10-10-2008, 07:40 AM
  2. Question: Tranny popping out of Fourth gear...
    By RAWS6 in forum Manual Transmission
    Replies: 4
    Last Post: 06-04-2008, 01:55 PM
  3. weird.. stuck in fourth gear???
    By DW2000TA in forum Manual Transmission
    Replies: 2
    Last Post: 06-14-2007, 05:08 PM
  4. wtb. v8... fourth gen.. 5k or less..near WI
    By hrsp in forum Vehicles For Sale / Trade
    Replies: 0
    Last Post: 03-06-2007, 08:17 PM
  5. from first to fourth, WTF
    By LS1King in forum Stereo and Electronics
    Replies: 11
    Last Post: 06-09-2006, 09:27 PM

Bookmarks

Posting Permissions

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