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Marisa 3/30/2012
2002 Ford Escape XLT 6 Cyl 3.0L - Engine
Code 0136 oxygen sensor 2. How serious is it to fix?
Ck engine lite came on. Had someone run code checker. Came up w p0136. How serious is it to fix? Can I do it my self?
1 Answer
  • EG9 K20A3
    EG9 K20A3 3/30/2012
    A code P0136 may mean that one or more of the following has happened:

    * Faulty O2 sensor leak in exhaust close to O2 sensor
    * Short to voltage on O2 signal circuit
    * Open in circuit resistance caused by corrosion in connector

    Possible Solutions

    * Replace the second oxygen sensor on bank 1
    * Repair open or short in signal circuit
    * Clean corrosion from connector

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