Dismiss Notice

Welcome To CK5!

Registering is free and easy! Hope to see you on the forums soon.

Score a FREE t-shirt and membership sticker when you sign up for a Premium Membership and choose the recurring plan.

The surge

Discussion in '1969-1972 K5 Blazer | Truck | Suburban' started by CraigG, Jun 6, 2001.

  1. CraigG

    CraigG Registered Member

    Joined:
    Apr 10, 2001
    Posts:
    25
    Likes Received:
    0
    Location:
    Kirkland, Washington
    Maybe it's just my truck, but what is the exact cause for the truck to suddenly lunge forward a couple of inches when I'm sitting at a stoplight?
     
  2. travis

    travis 1/2 ton status

    Joined:
    Nov 17, 2000
    Posts:
    173
    Likes Received:
    0
    Location:
    Panama City, FL
    AT or manual?
     
  3. CraigG

    CraigG Registered Member

    Joined:
    Apr 10, 2001
    Posts:
    25
    Likes Received:
    0
    Location:
    Kirkland, Washington
  4. Klef72K5

    Klef72K5 1/2 ton status

    Joined:
    Apr 8, 2001
    Posts:
    249
    Likes Received:
    0
    Location:
    Columbia City, Indiana
    ut-oh! sounds like pressure plates. Time for a rebuild!

    <A target="_blank" HREF=http://wsphotofews.excite.com/031/rw/Jo/og/t488200.jpg>http://wsphotofews.excite.com/031/rw/Jo/og/t488200.jpg</A>
     
  5. travis

    travis 1/2 ton status

    Joined:
    Nov 17, 2000
    Posts:
    173
    Likes Received:
    0
    Location:
    Panama City, FL
    Could be brakes losing pressure indicating a bad master cylinder or leaking caliper/wheel cylinder. On the other hand it sounds like a tranny problem. I'm not an automatic guy so I would only be able to speculate. Steve Chin will be the guy to answer this question. Steve knows everything about everything.
     
  6. Steve_Chin

    Steve_Chin 1/2 ton status

    Joined:
    Mar 6, 2001
    Posts:
    1,126
    Likes Received:
    0
    Location:
    Foster City, CA, USA
    Not really... I don't rightly know what would cause an automatic to suddenly surge forward. Perhaps something to do with the torque converter. Does it happen with the parking brake applied? If not, then brakes would be a guess...
     
  7. arq

    arq 1/2 ton status

    Joined:
    Jan 17, 2001
    Posts:
    2,017
    Likes Received:
    0
    Location:
    Imperial Valley/Maricopa
    combination of axel warp and brakes, just guessing.

    ARQ.

    1-72 4x4 CST Blazer
    2-71 4x4 CST Blazer
     
  8. 71RestoRod

    71RestoRod 1/2 ton status

    Joined:
    Mar 7, 2001
    Posts:
    178
    Likes Received:
    1
    Location:
    Evergreen, CO
    Is the engine surging?
     
  9. CraigG

    CraigG Registered Member

    Joined:
    Apr 10, 2001
    Posts:
    25
    Likes Received:
    0
    Location:
    Kirkland, Washington
    not noticeably.
     

Share This Page