Hi, I've owned a 1994 Jeep Grand Cherokee Ltd with 310,000 k's. for over 11 years now and recently it has started to idle very rough. I've always taken good care of it and it has been an excellent vehicle. I'm thinking maybe the plugs or wires may be the cause or even the fuel filter. Any ideas where I should start to look. I'm not mechanically inclined myself so I'd like to narrow it down before I ask for help from a buddy.