Hydraulic Power Assist Steering System Problems of Toyota Sienna

Toyota Sienna owners have reported 7 problems related to hydraulic power assist steering system (under the steering category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Toyota Sienna based on all problems reported for the Sienna.

1 Hydraulic Power Assist Steering System problem of the 2004 Toyota Sienna

Failure Date: 04/13/2008

Power steering rack failure on 2004 vehicle with 36,000 miles. Steering is erratic and odd feeling. Concern is that a total ps failure could occur making van very difficult to control.

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2 Hydraulic Power Assist Steering System problem of the 2006 Toyota Sienna

Failure Date: 02/14/2008

Power steering somewhat ineffective, but occurs intermittently and for very short periods. It is a safety hazard. One has to put more pressure on the steering wheel to make a turn, but then when the power steering kicks in, the result is to over steer.

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3 Hydraulic Power Assist Steering System problem of the 2002 Toyota Sienna

Failure Date: 08/06/2001

Consumer purchased vehicle on August 4,2001, and on Aug 6 vehicle caught on fire. Consumer was driving at approximately 30 mph when power steering failed, and could not turn steering wheel. Consumer then noticed smoke. ,was able to pull to side and get children out of vehicle. Flames were coming from underneath vehicle. Engine totally melted, and possibly was a total loss. Toyota mechanic and fire department feel it might have been a electrical fire. Please provide further information.

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4 Hydraulic Power Assist Steering System problem of the 1999 Toyota Sienna

Failure Date: 06/15/2001

In early 2001, this vehicle had binding in steering, returning to center from left turns. Dealer repaired with kit from a service bulletin, at no charge, under warranty. At some point later in 2001, vehicle occasionally lost power assist turning left. Incidents are becoming more frequent. Both problems limit steering control, usually at low speeds, requiring fast driver corrections to avoid collisions. Arrangement is being made to diagnose and correct the latest problem. Both faults seem connected and should be studied, as they are safety hazards, and there was a service bulletin on the earlier problem that does not show up in the NHTSA data base.

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5 Hydraulic Power Assist Steering System problem of the 1998 Toyota Sienna

Failure Date: 01/27/2000

Power steering fluid leak while vehicle was stuck in snow and ice caused a fire in the right front wheel.

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6 Hydraulic Power Assist Steering System problem of the 1998 Toyota Sienna

Failure Date: 07/15/1999

Hit on driver side at 30mph--van rolled over.

7 Hydraulic Power Assist Steering System problem of the 1998 Toyota Sienna

Failure Date: 07/02/1999

Beginning at 4,000 miles, this vehicle has had a recurring, intermittent problem with the power steering mechanism. When making a left hand turn, the steering locks and continues to turn the vehicle in a circle. It releases only when manually forced back to center. During the colder, winter months, this would happen 2 or 3 times a day in heavy city traffic. I have had the power steering checked by the dealer on different occasions. The dealer insists there is nothing wrong. The vehicle now has nearly 19. ,000 miles on it and the problem is getting worse. On Friday, July 2, 1999, because of a lock up of the steering mechanism, I nearly caused an accident by being forced into the cross traffic which was stopped at an intersection, while making a left hand turn. It happened again on Sunday, July 4, 1999. The power steering was checked again by the dealer on July 8, 1999, who insists there is nothing wrong!.




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