92 silverado severe oil leak

Discussion in 'GM Powertrain' started by jimwest, Feb 12, 2010.

  1. jimwest

    jimwest New Member

    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. Z71_guy

    Z71_guy Epic Member 5+ Years 1000 Posts

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

    Gmcsuvguy Rockstar 100 Posts

    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!:great:
  4. jimwest

    jimwest New Member

    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. mmorgan1865

    mmorgan1865 Rockstar 4 Years 1000 Posts

    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.

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