2008 Toyota Sienna Problems

RepairPal has identified the most common problems with the 2008 Toyota Sienna 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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8
Known Problems

Models with electric sliding doors can develop problems with the door mechanism. The cable in the door becomes frayed, which will damage the electric motor.

One or more oxygen sensors may fail resulting in illumination of the Check Engine Light.

The VVT-i oil line is known to burst. This is a very large leak which covers the ground, engine, and undercarriage.

If the oil line ruptures while driving, the low engine oil message and engine oil pressure warnings will illuminate. Continued use after these warnings will result in complete engine failure due to oil starvation.

The line is known to be defective, and a revised part has been issued by Toyota, however, this revised part is known for the same issue.

To repair the issue, the line must be replaced, and the engine bay and undercarriage must be cleaned thoroughly.

Multiple cracks may develop on the upper surface of the dashboard. At this time, the only suggested repair is to replace the dashboard.

The Check Engine Light may illuminate due to an evaporative emission (EVAP) system fault. Our technicians tell us these EVAP system faults can be difficult to diagnose but it is not uncommon to find a failed charcoal canister or a loose or worn gas cap.