I've got a 2001 Jeep Wrangler TJ with 2.5 4 cylinder I know that the 4 cylinder does not have much power but was really expecting more than this. My Jeep will barely hold 60 to 65 on flat ground straight away is this normal. I have a 98 S10 with the 2.2 and it will run 90 mph easy. Is it the gearing? Just looking for some suggestions it doesn't seem to miss or anything was told it just had a tune-up before I bought it. Any help would be greatly appreciated.