unknown oil seepage - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 02-10-2004, 10:14 PM   #1
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Default unknown oil seepage



check it out
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Old 02-10-2004, 11:30 PM   #2
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Most likely coming from the seal between the lower intake manifold and block.



See the blue seals? Right at the ends. Get a flashlight and mirror.
It'* where the block, heads, and lower intake all meet. Right in the corner. This is the most common spot to leak oil on these engines. The stock seals are suspect, the new ones from the dealer are improved.
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Old 02-11-2004, 03:23 PM   #3
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thanks but i need a oil pan gasket too its leaking there for sure i dont go through oil thou so its not that bad
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Old 02-11-2004, 03:36 PM   #4
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Leaking at those seals I pointed out won't be severe. It'* not a pressure area. The oil just splashes around from the rods, and occasionally squirts out there. It'll dribble down the face of the block. You'll see it with a bright flashlight if you look in there above the trans housing. If you cleaned it up really well, you might be able to reseal it from the outside, but it'* worth going in and doing all of them at some point if this is where it'* coming from.
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