2000 Jaguar XJR mileage: 105,000 it seems like its energy level has been turned down a notch

2000 JAGUAR XJR
105,000 MILES • V8 • 2WD • AUTOMATIC
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2000 Jaguar XJR mileage: 105,000. My car has been running great until last night, it seems like its energy level has been turned down a notch. It starts fine and runs ok, but it doesn't run smoothly like before. It wobbles now when it idles and runs with a slight wobble too. I just need an idea of what to expect before I take it to anybody. It's pretty costly if I don't know what they are talking about.
Oct 18, 2010 at 11:56 PM
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Scan computer with an scanner and check for trouble codes. Check for a bad plug wire or a fouled spark plug. Also, you should check compression and a for plugged catalytic converter.
Oct 19, 2010 at 12:07 AM