Hello. I am new here so take it easy on me. I have a 96 s10 lt blazer 4x4. I have a oil leak that looks like it coming from the front of the engine. I have new oil lines so I can rule that out. It the front main seal on the crank shaft prone. I also have a emmissions problem. The trouble code says I have complete emmissions failure. I have 2 new O2 sensors, PCV valve and a new gas cap. Is the EGR valve bad or shouldI go get a vacume leak check done. If anybody knows how to drain and fill the transfer case let me know.

 

Oil leak could be valve cover, front main seal, oil pan gasket, etc. Really have to get things cleaned up and really have a look at where its comin' from.

On the code, what is the exact code?