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1999 Chevrolet 3500 Pickup Question: what will cause a small oil leak at the oil filter adapter



dalmgren, Riverside, CA, September 02, 2011, 23:06

This adapter mounts to the block and extends off at a right angle to the normal oil filter location. Theres a small leak(drip) where the adapter mounts to the block. how does this adapter mount to the block? I'm assuming an oil ring leak between the block and adapter, but I don't see any bolts holding the adapter. There are 2 pipe plugs in the adapter.

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  • Answer #1

    patrick mannion from Greg Solow's Engine Room, September 03, 2011, 00:20

    There are several engines available for your truck but the adapter seal will leak, to replace it remove the oil filter and a bolt goes up into the engine block that secures the oil cooler to the block.Takes less than an hour to replace on the V8 5.7L engine.

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