Gasoline Storage problems of the 1998 Dodge Dakota

Have had an ongoing problem with hesitation upon acceleration esp. Uphill. Dealer finally (after warranty was up and we have had it in for the same problem at least three times now within the warranty period) found that there was an airleak some where. Also performed a tune up. Straps on back of console are both broke, scratch legs when sitting in back seat. Ran out of gas twice on 1/8 of a tank, then ran out at 1/4 tank. They replace the "sending unit"? at a cost of 170. 00 approx. (no longer under warranty by 3000 miles).