i have a 98L 2.2 4eat. i know this has been covered but i only found it on the manual tranny and this is for the auto.just recently i have found that when i go up hill usually in 2nd or 3rd i will hit 4000 and the tach will drop down to about 3500 and start climbing again i have no knowlege of cars as im a computer major but this seems like the tranny is slipping now tonight driving back to school it started doing it a about 3500 and dropping to 3000 i just bought the car in august and have a 6 month warrenty so it might be covered. So is it slipping??

 

BTW the car has 131,--- miles on it.