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  1. R

    2004 Explorer is in Safe mode

    Okay, I got it. I disconnected the battery for about ten minutes, then I waited about twenty more minutes to give the computer time to reboot. Everything was fine when I started it after that. Before, I was trying to start the engine immediately after I reconnected the battery.
  2. R

    2004 Explorer is in Safe mode

    I meant failsafe mode. I only disconnected the battery for five minutes. Did not clear the codes (no tool).
  3. R

    2004 Explorer is in Safe mode

    My Service Engine Soon light came on and the code the computer gave was P0401 which is for a faulty EGR valve. I replaced the valve and now the engine has gone into Failsafe mode. Any suggestions?
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