Hi there. I have a 2001 xls. On occasion (every other day) there is a slight hesitation feeling when I am driving. It is as though the truck does a very mild jerk. It has happened at 30mph and on highway speeds as well. The dealer recommended a fuel flush and filter change and a spark change. I did these recommendations and the problem still exists. There is only 57000km on the truck. Any ideas would be much appreciated. Thanks, pauly

Mine "jerked" 3x's yesterday at ~55mph. The first was really harsh w/a loud clunk. Have 95K, and need to replace plugs/wires/fuel filter, but was wondering if you had any luck since your similar fixes did not alleviate the problem.