Engine Oil Leak 5.9L

Discussion in 'General Motoring' started by Bruce, Feb 20, 2004.

  1. Bruce

    Bruce Guest

    Both of my 5.9L engines leak oil from somewhere in the rear of the engine
    which drips onto the exhaust manifolds and transmission bell housings.
    Intake manifold gaskets? Or what ???

    Bruce, Feb 20, 2004
  2. Bruce

    robs440 Guest

    check your distributor o ring lately?

    also you oil pressure sending unit is back there and has a habit of getting
    a leak in the them after a few years.
    robs440, Feb 21, 2004
  3. Bruce

    .boB Guest

    If it drips on the exhaust manifolds, it's probably the valve covers.

    Clean the engine really well with a quality degreaser and some hot
    water. Let it sit until COMPLETLY dry. Then spread flour around the
    suspect areas. Run the engien for a while. Look for the discolored
    flour to pinpoint the leak.

    97 H-D FXDWG - Turbocharged!!
    01 Dakota Quad Sport, 5.9/Auto/4x4
    83 GMC Jimmy (beater)
    66 427SC Cobra Replica - Project
    66 Mustang coupe - Daily Driver
    .boB, Feb 21, 2004
  4. Bruce

    robs440 Guest

    makin tortillas? LOL

    robs440, Feb 21, 2004
  5. Bruce

    Mike Hall Guest

    It is not unknown for Chrysler engines to have leaky valve covers..
    Mike Hall, Feb 21, 2004
  6. Bruce

    Bill Hall Guest

    I hear that trick works on fat women, too.
    Bill Hall, Feb 22, 2004
  7. Bruce

    Steve Guest

    Its not unknown for ANY brand engine to have leaky valve covers...

    But the Magnum versions of the 5.2/5.9 are much less prone to valve
    cover leaks than the pre-Magnum versions. The Magnums have a machined
    gasket surface for the valve cover gasket, the pre-Magnums have a rough
    cast surface.

    If its a Magnum, I'd check the oil sending unit and the intake manifold
    end gasket. Smallblock Mopars have more places to leak oil from than
    the big-blocks did, and the intake end-gaskets are one of the most common.
    Steve, Feb 25, 2004
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