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
Page 1 of 2 12 Last Post byLast Post by
Results 1 to 10 of 14
  1. #1

    Default Transmission help ....please

    Hey everyone.

    I'm back.

    I have an 02 Chevy Suburban.

    A couple days ago I noticed it was making a LOUD rattling, clanking noise from under the truck.

    I crawled under the next day, and left the engine running so I could find the noise.

    I worked my way back to the transmission and it is REALLY loud right underneath the transmission pan.

    I have no idea what the problem could be.

    Does anyone have any ideas?

    Thanks !

  2. #2

    Default

    The only advice I can give you is to pull the pan, and see if anything doesn't look right.
    Jess

    1991 Suburban


  3. #3

    Default

    did you check the fluid level?
    :neutral:94BURBTX:neutral:

  4. #4
    Legend
    stephan's Avatar
    Join Date
    Sep 2010
    Location
    Far West, Oregon USA,
    Posts
    8,610
    Blog Entries
    1

    Default

    Is this rattleing noise more to the front where the torque converter is?
    Is your trans still shifting & operating normally?
    1988 Chevy C-3500 2wd (no pic)
    350 c.i. 5.7 L Stock Block, 4 Bolt Mains
    L-31 Vortec Heads, Edelbrock Cam & Intake,
    Holley 650, Flowtech Headers, Magnaflow exh.
    Jet Trans 700R4, B&M Ratchet, 4:10 gears,
    3" susp. lift kit "shadetree"
    No rev limiter, No speed limiter lol


  5. #5

    Default

    Good point, Stephan! I forgot about that. My truck was making some serious metal on metal sounds while under torque. Took me a couple of days to figure out that one of the torque converter bolts had walked out and was hitting the dust shield!

  6. #6
    Legend
    stephan's Avatar
    Join Date
    Sep 2010
    Location
    Far West, Oregon USA,
    Posts
    8,610
    Blog Entries
    1

    Default

    I've seen 3 instances of those noises in the TC area Jess. One was a bolt backing out like your was, the second was a cracked/broken flex plate that was allowing the ring gear to grind away on the starter gear under acceleration, & the third was a T C balance weight that the spot weld had broken loose on one end & was slapping the dust cover.
    I'm hoping that the posters noise is coming from this area instead of the trans pan because these are cheaper to fix than a trans rebuild.

  7. #7

    Default

    I definitely agree, Stephan. With the fact that Turbolag didn't mention the transmission malfunctioning, I would say that this is a definite possibility!

  8. #8

    Default

    Hey everyone. Thanks for all of your replies.

    It turns out it wasn't the transmission ! ...Whew... One of the catalytic converters broke apart on the inside.

    Its fixed now. One new cat.

    Man, 200 for a cat.

  9. #9

    Default

    glad you found the problem and that it wasnt the tranny.
    David
    2004 Silverado 2500 Crew Cab 4x4, AMSOIL EA air filter, Granatelli MAF sensor, Throttle body spacer, Magnaflow exhaust (true dual to 2 in 1 out muffler), 6" ProComp lift (add a leaf and 5" superlift rear block), Bilstein shocks, 35's (Cooper Disoverer ST) and 4.10 gears, Rhino Liner, EGRUSA fender Flares and widow visors, extended stainless steel brake lines, firestone airbags w/onboard air compressor, Pioneer Avic X940BT navigation, Accel backup camera.
    http://www.gmtruckclub.com/forum/sho...Silverado-2500
    1960 Land Rover Series II 88
    2001 Pontiac Sunfire
    2013 Toyota Avalon Limited (Wife's Car)
    NRA Life Member

  10. #10

    Default

    Thanks man. I'm glad it was something simple.


Page 1 of 2 12 Last Post byLast Post by

Similar Threads

  1. What kind of transmission do I have? Transmission check.
    By groceryman in forum Maintenance & Upkeep
    Replies: 3
    Last: 10-18-2010, 07:41 PM
  2. Transmission Help.....Please?
    By rustyk2 in forum GM Powertrain
    Replies: 2
    Last: 03-19-2010, 07:27 PM
  3. Which transmission do I have?
    By 01R1 in forum GM Powertrain
    Replies: 3
    Last: 05-21-2009, 11:29 PM
  4. Replies: 0
    Last: 06-08-2007, 11:53 AM
  5. Replies: 0
    Last: 06-08-2007, 09:20 AM

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
  •