2002 Mercury Sable Q&A
2002 Mercury Sable Question: engine misses at idle
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. - DaveJHM
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.