Quick update on some of my recent work.......

The fumes in the car were from a gas line leak, the IN line connector went bad. I assume the 2 o rings just wore out, cut and replaced with a new section and no more leak, bad MPG and gas fume smell gone in cabin. Had the exhaust checked out and its all in good shape.
The noise turned out to be the front wheel bearing hubs, after 145K miles makes sense. The passenger one seemed ok, the driver side one was bad, dry spots all over. Installed Moog wheel bearing hubs and the noise is all gone, nice smooth quiet ride again. Took me prolly 4 hours of work as the 2 bolts holding the caliper bracket were lock tite in and was a huge problem getting those bolts loose on each wheel, broke 2 15mm sockets. And the 3 13mm bolts holding the hub assembly were also a PITA removing, had to turn the wheel in and outwards to get a good angle on the bolts.
Normally should be a 2 hour job is my guess.