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.

engine / tranny noise

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by caryhenry, Oct 12, 2002.

  1. caryhenry

    caryhenry Registered Member

    Joined:
    Sep 28, 2002
    Posts:
    78
    Likes Received:
    0
    Location:
    Tallahassee, Fl
    I have an 85 with the 305 and the 700R4 tranny. I can hear an intermittent rattling/grinding noise, and when I go under the truck it sounds like its coming from the flywheel/torque converter area. It is hard to hear in park, but in reverse it's pretty noticeable. Any suggestions?
     
  2. dyeager535

    dyeager535 1 ton status Premium Member

    Joined:
    Dec 13, 2000
    Posts:
    26,979
    Likes Received:
    189
    Location:
    Roy WA
    Check the flexplate to converter bolts, flexplate to crank bolts, and finally, the entire flexplate itself. Usually under heavy load (like starting up an incline from a stop) you will hear a cracked flexplate.
     

Share This Page