2004 Subaru Legacy Problems

RepairPal has identified the most common problems with the 2004 Subaru Legacy as reported by actual vehicle owners. We'll tell you what the problem is and what it'll take to fix it.

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Known Problems

The front oxygen (air fuel ratio) sensor element may develop a crack, causing the Check Engine Light to illuminate. Subaru has recalled certain models to replace sensors that may fail. The Subaru service program number is WXW-80, this is not a government mandated recall.