seems the housing where hoses attach in leaking
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1992 Chevrolet Blazer Question: oil leaking from a housing on driver side on engine / oil cooling system?
Answer #1Hightec1 February 28, 2012, 14:46Technician
Is it a full size blazer or S10 blazer?
I know the full size blazer has a O-ring and gasket kit to fixes those leaks.
If the hoses aren't leaking,most of the time you can remove oil filter
and the 2 bolts that hold housing and pull housing down.