Hello Diesel people....my first 6.2...1990 Dually has a fuel leak at the back of the motor....I can"t see where its coming from...Just put a new filter on, the one behind the intake, and thought I would be able to find it, no luck....Truck runs, fine 107,000 miles and well taken of...Seems to leak more after shutting motor off...Had it on the lift and still can't see where its leaking from....I'm lost and sure hope you guys can help me out.....Much thanks....Jim in SC