[rgerdes]

First check all the electrical connections at the battery and on the starter. Second the reason the starter was located under the intake is that the starter stays much cooler and lasts longer. Under the hot exhaust manifolds shorten the life of the starters. On previous Lexus models this starter lived for well over 100-125,000 miles. Third the problem your describing may be the stud contact that your battery cable attachs to on the starter. Previous years starters on certain Toyota models had this wear problem. These contacts were available for these starters and that was all that needed to be replaced. You would have to check with a dealer to see if these contacts are available. If they stock them then they are replacing them. Also check to see if the dealership stocks the starter as that would be another indication that the starter maybe experiencing failure. Most dealers don't stock any parts that don't sell a least 3 times in twelve months.