Subaru Impreza WRX Problem Reports

Newest Subaru Impreza WRX Problem Reports

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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

The air pump rusts out causing the the valves to get stuck open or closed. This appears to happen more frequently around wet areas (snow or humid). There are two valves; for the first one all you need to remove is the inter-cooler, the second valve is between the intake manifold and engine block.

The Check Engine Light may illuminate because of a failed knock sensor. Although the sensor often tests okay, it can fail intermittently, while the vehicle is being driven.

There have been reports of "clutch chatter," particularly when driving the vehicle from a cold start. If the issue was reported by the owner while the vehicle was still under warranty, the dealer may replace the clutch with improved parts.