2002 Mercury Sable Q&A

2002 Mercury Sable Question: engine misses at idle

engine missing at idle and up hills when going slow. no warning lights. has 109,000 miles what could it be? -
Answer 1
Have you had your spark plugs replaced yet? Worn plugs can be the cause. Other ignition issues, such as a coil issue, coil boot issue (both for DOHC 3.0L V6 24V engine), ignition wires (3.0L V6 12V engine) can be the cause. -
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Engine sometimes is ruff at idle. Missed and hesitate when driving up a hill. Ample supply of gas in tank. MPG has dropped from 19 to 16.