GM Truck Club
THE PREMIER CHEVY TRUCK & SUV FORUM
Founded in 2004 ~ We're the #1 Chevy Truck & SUV Forum.
Silverado & Sierra | Tahoe & Yukon | Suburban & Yukon XL | SUV & CROSSOVER
Results 1 to 4 of 4
  1. #1

    Default Strange jerk at highway speeds

    96 GMC Suburban….strange jerk when driving on highway. My daughter’s vehicle had a problem with the check engine light coming on. $1400 later the check engine light problem is solved, however there is now a strange jerk when driving that wasn’t there before. The best description I can come up with is that it feels like someone bumps your rear bumper lightly. The mechanic who fixed the check engine light says it appears to be a transmission problem. The transmission guy he sent my daughter to says he doesn’t think it is a transmission problem. It seems to occur mainly between 40 and 65 mph. The vehicle has 164,000 miles on it. Has anyone had a similar experience that might give us a clue?
    Thanks, JPD

  2. #2

    Default

    Is it 4wd?
    ~Janet~
    My rig: 1993 Suburban K2500 & 16ft stock trailer.

  3. #3
    Sr. Engineer
    Join Date
    Oct 2010
    Location
    Indianapolis, In
    Posts
    487

    Default

    Might be the torque converter locking and unlocking abruptly. Try shifting out of overdrive to see if the symptoms go away. If so then get the trans checked by someone else. If not then MAYBE have the trans checked out by someone else but take it back to the mechanic and ask him use a scanner that can be used while driving to see if someting might be going on with the computer.
    2000 GMC YUKON SLT, 5.3L tow pkg, G80 rear/w 3.73 gear

  4. #4

Similar Threads

  1. Humm at highway speeds
    By johnsonjf in forum GM Powertrain
    Replies: 3
    Last Post: 07-24-2010, 09:55 PM
  2. Vent speeds
    By willardearl76 in forum General Chevy & GM Tech Questions
    Replies: 2
    Last Post: 03-27-2010, 10:19 AM
  3. Wind vibration sound at highway speeds
    By Coneklr in forum Chevy Silverado Forum (GMC Sierra)
    Replies: 2
    Last Post: 09-07-2009, 01:28 PM
  4. Vibration at all speeds
    By halisa in forum General Chevy & GM Tech Questions
    Replies: 5
    Last Post: 07-05-2009, 11:34 AM
  5. Brakes grabbing at low speeds
    By Crawdaddy in forum Chevy Suburban Forum (GMC Yukon XL)
    Replies: 14
    Last Post: 03-27-2007, 09:51 PM

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
  •