GM Truck Club
Founded in 2004 ~ We're the #1 Chevy Truck & SUV Forum.
Silverado & Sierra | Tahoe & Yukon | Suburban & Yukon XL | SUV & CROSSOVER
Results 1 to 3 of 3

Thread: Oil Leak

  1. #1
    Sr. Apprentice makthenif's Avatar
    Join Date
    Jun 2007
    Deep in the Heart of Texas

    Default Oil Leak

    I am trying to diagnose a pesky oil leak. Not in large in amounts. Just wondering if anyone out there had a list of "usual suspects". I did a visual under the truck and could not pick out anything. There is nothing visual from under the hood. I changed the PVC. Thanks.
    '96 Suburban 1500 5.7

    Capitalism is the legitimate racket of the ruling class.
    -Al Capone

  2. #2
    Legend unplugged's Avatar
    Join Date
    Sep 2006
    High Deserts of SoCal


    Try putting cardboard under the truck to help you with where to start looking. That way you can tell if it is coming from either the front, back, left or right side of the engine. Steam cleaning the engine to get any grime off so that you can get a visual on the source. Rear main seal and intake seals are common place leaks.
    There is no way to happiness....happiness is the way.:yipi:  _vXMYypuKMJFw671uF2ZPhjez_j-atRmcjM2zQKpQi1JSsB75/burb1.JPG
    High Desert SoCal
    93 K1500 burb (personal) 350 AT 3" Lift 250K+
    02 Honda Civic LX
    Looking for a 1990's Miata for an engine swap

  3. #3


    Rear main, front main, oil filter, valve cover, oil cooler, oil cooler lines, trans cooling lines, trans front seal, rear seal, axel seals frt and rear, transfer case frt and rear.

    Without just a little bit more info on just where it is coming from it is very difficult to even venture a guess.

    As Unplugged said park the truck, put some cardboard under her and see if you can give us just a little more info.

    Even better, get the thing on a lift for a free inspection at one of the local shops. Most of the chains will give you a free safety inspection, tires, brakes and the like. When it’s up there tell them you have a pesky oil leak.

    Sorry we can’t be of more help.

    Technology is great, when it Works,
    And one Big Pain in the Ass When it Doesn’t.
    Detroit Iron Rules, All the Rest are Just Toys.
    94 GMC Burban, 5.7L (350), 4X4, Auto
    86 GMC Burban, 350, 2 WD, Auto
    79 GMC pickup plow truck, 400, Full time 4X4, Auto
    86 Pontiac Fiero SE, 2.8L, Auto, only mid engine American car
    See a Pattern yet?

    15 year GM assembly line worker.

Similar Threads

  1. oil leak
    By Jcloud in forum General Chevy & GM Tech Questions
    Replies: 1
    Last: 04-19-2010, 10:38 AM
  2. Oil leak
    By rmdig79 in forum Chevy Silverado Forum (GMC Sierra)
    Replies: 1
    Last: 04-12-2010, 04:52 PM
  3. leak?
    By intoxicologist99 in forum General Chevy & GM Tech Questions
    Replies: 4
    Last: 03-17-2010, 01:08 PM
  4. what leak is this??
    By 9191gmc in forum Chevy Silverado Forum (GMC Sierra)
    Replies: 10
    Last: 07-05-2009, 08:07 PM
  5. Oil Leak HELP
    By cchas14 in forum General Chevy & GM Tech Questions
    Replies: 6
    Last: 06-23-2009, 09:09 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