bigmac5 
2009 Toyota Avalon Sedan Limited 4dr Sedan (3.5L 6cyl 6A)
2 problems, engine noise and battery problem
 Over all, good car.When started in the morning and accelerating up the hill where I live, makes a sound like the old valve lifter lash before hydraulic valve lifters.2nd problem is the starter would not rotate when first pushing starter button, but did on susequent trys.Found 1/2 x 2 inch corosion under the cover on the positive post of the battery and cable.Toyota replaced altenator with rebult one and replaced cable connector.Similiar problem about 3 weeks later.Replaced termial connector again. 3 weeks later now and begining to corrode again.