Oil leak !!! New to blazers
 

Oil pans wet !! 2002 4x4 4dr. , gasket maybe?

Check the remote oil filter lines. common on these trucks

thanks will do

Seconding that. Get under there with some degreaser to clean it all up so you can find the origin of the leak.

Another culprit is the o-ring that seals the adapter between the aft-end of the oil lines and the engine block. I had mine blow out on my '92. When I replaced the lines on my 1999, replaced the o-ring and the gasket in the adapter while I was at it.

There are lots of threads here about replacing these lines and how to take your old ones and use better hoses and clamps.

This is my write up on my experience with replacing the lines.
https://blazerforum.com/forum/2nd-ge...-lt-4wd-95518/

While you are under there, check all of the pan bolts. I have found loose pan bolts on 3 separate 2nd gen S-series 4.3L engines with the cast aluminum oil pan that caused an oil leak. Two of them looked like a rear main seal leak and the third was external in the area of the remote oil filter adapter. All 3 cases were remedied by tightening the bolts. My old '00 Bravada ended up working loose again at which time I removed each bolt, flushed the holes with cleaner, and used a medium strength loctite to keep them in place. I put 35k miles more onto it before selling it without a drop of oil lost.

thanks for the help!!!