I have a 2007 Subaru Forester, bought from a dealer with 7,000 miles on it in 2007. I religiously had the oil changed every 5,000 miles and had other recommended work done. At 90,000 miles I did not have the work done immediately, but waited until 92,000 miles. My car then ran out of oil, with no smoking, no oil in the driveway, no warning light, so I believe the dealers didn't fill the oil at 85,000 miles. But that's not why I'm writing. I had a remanufactured short block assembly installed and the other work done at the dealer to the tune of over $6000. Now that I have my car back it hesitates at least once a day, sometimes several times, sometimes several times in a row. It hesitates at about 20 miles per hour, when the gears are changing. Of course, it didn't hesitate when they checked it and their computer says "nothing's wrong". In addition, there was a tapping sound in the engine. Again "nothing's wrong". When I had my car smogged, the smog tech said "OMG, you have a problem with your valves." I took it to the dealer and they then admitted I had a problem with my valves (or lifters) and they fixed it. The hesitation continues. What could be causing the hesitation? They're not smart enough nor do they care enough to figure out what it is. Thank you.