Car Problem Reports

Subaru Forester Improved Spark Plug Wires for Misfire Issues

Subaru Forester Problem
25 Reports
Me Too

Model Years Affected: 1998, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010

Engines Affected: 2.5L 4 Cylinder, 2.5L 4 Cylinder Turbo

Average Mileage: 70,816 mi (40,869 mi - 100,000 mi)


Sometimes the Check Engine Light illuminates because the computer detects misfires. Subaru released an improved spark plug wire set to solve the problem. The ignition coil should also be inspected for carbon tracks or short circuits between the contacts

  • Visitor, , 2.5L 4 Cylinder Turbo, 90,350 mi

    Engine started to stutter at idle last night. After 5 min, it was fine and running perfectly. Next day, ran perfectly for 15 min, then started to stutter when idling. Check engine light and cruise control light are on now. Never had a problem with this car before.

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  • Visitor, , 2.5L 4 Cylinder, 59,000 mi

    Stalls after a rain. Rough idle and operation until engine compartment is dry.

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  • The check engine light illuminated and another dash light blinked continuously. I took it in to my mechanic, who said the wires and seals had to be replaced ($380). My friend had the same lights go off less than a week later and the Subaru dealer told her it was the catalytic converter.

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  • Visitor, , 2.5L 4 Cylinder, 85,600 mi

    When at a redlight (2x's, car started shaking (Saturday, April 12th). Notice engine light flick on/off the second time. So I put it in park and tapped gas until light changed on my way to Subaru car service. Yesterday was told the ignition coils eed to be replaced.

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  • Visitor, , 2.5L 4 Cylinder, 68,000 mi

    Misfire on Cylinder 2 & 4. Replace Spark plug wires but still misfire code. Replace engine coil and misfire code went away.

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  • Visitor, , 2.5L 4 Cylinder, 90,000 mi

    rough idle and check engine light after rain . Dealer says needs new wires and ignition coil.

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  • Visitor, , 2.5L 4 Cylinder, 52,350 mi

    Check engine light flashing, then going off. Eventually CEL stayed on. Diagnosed bad plug wires. They were just changed 1 year ago at 30,000 miles too. We'll see if thats the end of it.

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  • Visitor, , 2.5L 4 Cylinder, 40,869 mi

    month ago, check engine and cruise lights on. subaru rec check gas cap. took it off and put back on. prob persisted.
    3 days later, subaru svc could find no prob even tho the check eng came back as misfire. yesterday, car was dif to start and when put in gear, stalled. did not start after that. towed to subaru. result, ignition coil towers cracked and ignition wires burnt at coil. replaced. works fine.

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