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 2 of 2
  1. #1

    Default 2001 Suburban 6L engine oil leak

    I need some advice with the newest one, Moby, a real white whale (K96 frame so it sits really high in back.) 150K miles - 2001 3/4T 4wd. Leaks oil from engine maybe oil cooler lines? There is oil on line at radiator and drips near rear of engine. Do rear main seals leak at this mileage?

    pasobubba

  2. #2
    Legend
    stephan's Avatar
    Join Date
    Sep 2010
    Location
    Far West, Oregon USA,
    Posts
    8,610
    Blog Entries
    1

    Default

    Yes Paso they leak oil @ 150k miles and usually a whole lot sooner than that. Try cleaning the oil off at your leaks and then run it a while and verify that it is originating there for sure, before you start repairs. Oil can creep, blow, & flow a long way from its origin and you could be decieved. I had a leak once that I thought was a rear main seal but turned out to be the rear of the intake manifold.
    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


Similar Threads

  1. Coolant Leak 2001 Tahoe 4.8L
    By nascar1 in forum Chevy Tahoe Forum (GMC Yukon, Cadillac Escalade)
    Replies: 4
    Last: 10-04-2010, 10:19 PM
  2. Oil leak from back of engine.
    By toothnet in forum GM Powertrain
    Replies: 5
    Last: 07-19-2010, 08:40 PM
  3. 2001 4x4 Front Diff Leak
    By DLeeHarley in forum GM Powertrain
    Replies: 12
    Last: 07-30-2009, 11:43 PM
  4. Chevy Engine oil leak
    By tvrc18 in forum GM Powertrain
    Replies: 2
    Last: 12-06-2007, 10:40 AM
  5. A/C Coolant Leak in 2001 Yukon XL
    By BLAM in forum Chevy Tahoe Forum (GMC Yukon, Cadillac Escalade)
    Replies: 2
    Last: 06-15-2006, 06:23 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
  •