elmustang5.0

ok now its hesitating even more than before but i still havent changed the cats or the filter. im probably going to do that tomorrow, is there anything else i can change while im down there?

elmustang5.0

oh and the check engine light comes on at times also

NoGo95GT

The check engine light comes on? Although that's not a good sign, but it will help you solve your problem. If you don't have a code reader, go to Autozone/any major parts store. Have them pull the codes for you(Note: The check engine light does not have to be lit up). Have them pull the codes with the car off, then on(You will get a better reading with the car on). I hope you figure your problem out soon though.