My 2003 expedition has started running really rough and I smell exhaust fumes. What's my problem?

Asked by Nov 20, 2015 at 02:37 PM about the 2003 Ford Expedition XLT

Question type: Maintenance & Repair

2 Answers

79,685

Your first post has three answers. I would install new plugs and check to see if you have any bad coils.

27,135

make sure it isn't something simple like a vacuum leak with the PCV valve or hose/elbow. You don't mention any noises like ticking, so hopefully it isn't an exhaust leak.

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