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  1. #1

    Default 92 silverado severe oil leak

    Have a 92 Silverado 350. It has dripped a small amout of oil from the rear of the engine just ahead of the transmission for several years. Suddenly the leak has turned to a geyser! Engine suddenly pumped out 4 qts of oil in 5 miles. Stopped at gas station and put 3qts of oil in. Started engine and looking under the truck I could see a pressurized stream of oil coming out. Could real seal failure result in a leak like this or should I be looking for some other problem? Thanks

  2. #2


    sounds like an oil pressure sending unit which is located on the top of the motor behind the distributor

    2003 Z71 Silverado LS
    Access roll up cover
    Bed Rails
    Billet Grill insert
    Bed Rug
    CB with PA system
    Waiting to be installed
    Two 8in RF HX2 punch( would have 12s but they got stolen)

  3. #3
    Jr. Engineer Gmcsuvguy's Avatar
    Join Date
    Dec 2007
    Alberta, Canada


    If you have a engine oil cooler it can be a line either disconnected or a hole in it. Gotta get dirty and climb under your truck. Good Luck!
    Ken Beida
    2010 GMC Sierra Crew Cab 4X4, 5.3L
    2009 GMC Sierra Denali, 6.2L = 403hp, AWD, Full load

  4. #4

    Default Found problem and thanks to all

    Problem turned out to be the "O" ring seated between the oil filter housing and the block. Messy job with all the oil under there. Thanks to all.

  5. #5
    Legend mmorgan1865's Avatar
    Join Date
    Feb 2010
    Port Orange, Florida


    Sometimes the O ring from the old filter will stick to the block and then when the new filter is screwed on you have a double layer of O rings that don't handle the pressure.

    Don't ask me how I know this.
    2010 Silverado Ext. Cab LTZ 2 WD 6 ft bed
    5.3L 6 speed w\ 3.08 rear end
    Navigation Package
    Westin lighted boards
    Undercover SE tonneau cover
    It's a start!

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