Car Problem Reports

Subaru Forester Improved Spark Plug Wires for Misfire Issues

Subaru Forester Problem
34 Reports
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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: 88,614 mi (40,869 mi - 200,000 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

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

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

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  • , , 2.5L 4 Cylinder, 45,000 mi

    No engine lights came on, but engine turned off at stop signs several times in the last week. The repair shop diagnosis is wires, oil change, spark plugs. It seems that if this is a common problem, it should be considered under the Lemon Law or covered under the warranty.

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  • , , 2.5L 4 Cylinder, 200,000 mi

    I installed a new set of Belden plug wires from NAPA. The issue came back. I completely removed the wires and the ignition pack to inspect it, reconnected everything, and the CEL went away. So all is well!

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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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  • , , 2.5L 4 Cylinder, 166,500 mi

    After starting he vehicle and going down the road {I have standard transmission} the car starts stalling and engine light starts blinking;
    resolves itself after about 1/2 a mile; but only after a hard rain does this happen.

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  • , , 2.5L 4 Cylinder, 65,000 mi

    radio does not work in the cabin light and the cklck on the dashboard

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  • , , 2.5L 4 Cylinder, 48,000 mi

    Same as others stalled a few times, then ran fine. Today stalled repeatedly with check engine light on, cruise light flashing and slippery pavement light on. Diagnosed as cracked coil, fried spark plug wires and need to replace spark plugs.

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  • , , 2.5L 4 Cylinder, 116,000 mi

    oil fouled my #3 spark plug. Dealer changed head gasket. It fixed that problem.

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  • , , 2.5L 4 Cylinder, 62,000 mi

    At 62,000 miles had to replace ignition coil, wires, plugs and catalytic converters. Took Sabaru Forester to shop within 30 minutes and 20 miles of check engine light on. Obviously too late!

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