When you say left side, is that driver’s side or passenger side? The convention is to say left and right as if you are sitting in the car, but not everybody knows that, so thought I’d better ask.
Before suggesting where the leak could be, be aware that if your PCV valve or hoses are clogged, the crankcase will build up a lot of pressure and force oil out of places that normally wouldn’t leak (like the dipstick tube).
The front cover of the MTV valve is a common leak place from a bad o-ring.
'98 LXi - Later Concorde gages (black w/ chrome rings)/'99 LX - LHS gages (white) - HIR bulbs
Last edited by peva; 02-07-2019 at 05:22 PM.