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2000 Ford Explorer Question: What's the most likely cause for a PO402 code?

 

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megathraxica, Wichita, KS, May 06, 2013, 19:40
 Rookie

Truck runs and shifts fine when cold, as motor warms it lacks power, surges, and has shift problems but idle is okay.

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  • Answer #1

    Greg's Orange Auto (12960 Answers) , Orange, CA - (714) 361-9386
    globalhelper May 07, 2013, 06:13
     Master

    SOMETHING IN THE EGR SYSTEM IS MALFUNCTIONING OR POSS DPFE VALVE. SEEK PROPER DIAG AND EST AS THERE IS SEVERAL THINGS IT COULD BE, INCLUDING PLUGGED EXHAUST SYSTEM

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