I have a 2003 Pathfinder SE that is about 8 months old (12k miles). Recently I took it into the dealership to have a few lifters replaced because of some noise. The very next day after getting the truck back (2 weeks in the shop), the engine light came on and a very noticable power decrease. In fact, I can not drive up modest hills. What's strange is this only happens after 5 minutes of driving and it does not matter what speeds. I may be wrong, but my bet is on the computer. Does anyone have any oppinions? My PF is still in the shop as of today, I'm in a little rental car now (at least it has good MPG).
Thanks for any advice on this.