O2 Sensor Problems of Toyota Sienna

2001 Toyota Sienna le, purchased new, started having problems. "check engine" light came on when vehicle had approximately 25,000 plus/minus miles. Under warranty, Toyota dealership replaced the oxygen sensor without a charge. However, during this process, the "beep" signal you hear when locking-unlocking the vehicle with remote key was disappeared. This is also fixed under warranty. The "check engine" light came on again when the vehicle had about 35,000 miles. Toyota dealership said it is due to a dirty vacuum hose, they cleaned it with a charge little over $100. 00. The next day the "check engine" light came on again, this time the Toyota dealership said they need to replace the charcoal canister (parts free, but we have to pay labor--about $100. 00). This thing causes extreme mental distress, time, money, security etc.

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Ltr fwd fm fhwa re their defective 2000 Toyota Sienna xle, the van has problems with engine sludge. . . The vehicle started to blow blue smoke and ran rough. The dealer discovered engine gel deposits. The malfunctioning light had come on due to the oxygen sensor per dealer, the brakes squealed when stopped at low speeds(problem continued), and pulled to the left. The dealer could not duplicate. The engine sludge had come back again due to a burnt hole in the valve which was in the piston. The tachometer illumination appeared to be out and the bulb was replaced. The consumer requested reimbursement for the hotel stay and the vehicle rental.

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