I have a 1999 Elantra with about 76000 miles. For the last couple of weeks it has been sputtering and sounding like it's going to die right after I start it up. It also is worse when I turn on the a/c. Seems to be mostly better once its driven but is still a little rough if I try the a/c when it's idling. I know I need to take it in and probably an easy diagnosis but just wanted a little clue as to what or how costly of a repair it may be. Thanks!