2001 Suburban 6L engine oil leak

Discussion in 'GM Powertrain' started by pasobubba, Oct 7, 2010.

  1. pasobubba

    pasobubba New Member

    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?

  2. stephan

    stephan Rockstar 4 Years 5000 Posts

    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.

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