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Toyota Sienna Oxygen Sensor May Fail

 
Toyota Sienna Problem
43 Reports
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Model Years Affected: 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2007, 2008

Average Mileage: 92,394 mi (13,000 mi - 177,000 mi)

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

  •  Rookie

    Not sure about mileage.

    Had to have 2 sensors replaced within a couple of years. Mechanic suggested clicking gas cap at least 7 times when tightening. Have had no problems since...fingers crossed.

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  • Visitor, , 65,000 mi

    Check engine light came on at about 25000 miles. Toyota dealership found thatboth O2 sensors were bad . I had them replace them at about $600. At 50,000 miles the O2 sensors went bad again. This time I did not bother replacing them as the gas mileage not noticeably affected. But, I need to stare at the check engine light every day.

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  • Visitor, , 121,000 mi

    The engine light comes on along with vsc light.

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  • Visitor, , 85,000 mi

    oxigen sensors may fail resulting in ilumination of check engine light

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  • Visitor, , 85,000 mi

    not fixed yet, check engine light due to oxygen sensors problem. 226$ for the parts, not sure it worth it.

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  • Visitor, , 135,000 mi

    O2 SENSOR FAILURE

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  • Visitor, , 13,000 mi

    Very upset. Oxygen and fuel sensors bad on Toyota Sienna that only has 13,000 miles on it and has been impeccably maintained. Not a Toyota fan if I am going to have to pay for this.

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  • Visitor, , 130,000 mi

    Initial problem was indicated by "Check Engine" light. Follow-up with a OBD-II code reader (a $40 must-have item for a DIY repairman) pin-pointed a faulty Air/Fuel sensor on rear exhaust manifold. Replaced with a new sensor (about $160) from local parts store. Access to the sensor is cramped and limited, but certainly do-able. Cleared codes, replaced sensor, drove for 100 miles, passed state emissions inspection, no issues after 2 months.

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  • Visitor, , 164,147 mi

    The van functionally is great. It does not affect the way it drives at all. The check engine light came on and Auto Zone ran a diagnostic test; this test indicated that one of my O2 sensors was bad.

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  • Visitor, , 100,000 mi

    check engine light came on. Drove for an year like that.
    Now for state emission test need to fix it.

    Changed one sensor ( 89467-41040 ) but light came back after driving few miles.
    Have ordered second sensor and hope it will solve the problem to pass emission test.
    $150.00 + $ 130.00

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