1994 Other Suzuki Models Gas dripping from exhaust joints

H1!- 94 Suzuki Sidekick 1.6L 16v 4cyl. I noticed liquid dripping from joints of the exhaust system as well as leaking exhaust pressure. I replaced the flange gaskets and there is no longer pressure leaks at the joints, but there is still gas dripping. And pipe between cat and manifold appears to have a leak (it is covered with a shroud so I can't readily see). Trouble codes have ALWAYS read #51 (EGR), but I have cleaned and it has been doing fine till now. Also noticed much white smoke out the tail when driving. I suspect head gasket. But other input would be great! Thank you! - Joe