Question about 2005 Ford Explorer

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Engine failsafe mode light stays on . Explorer was running fine before being parked for three weeks. Found the accessory switch was left on and battery completely dead. Recharged battery and restarted to find that I had no throttle. Engine will idle and trans will go in gear but you no power to drive away. I also tried a different set of keys thinking a chip had gone bad. Didn't help. What to do?

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I don't know how old the battery is but just to make sure its ok have it load tested. If battery is good after load testing then have vehicle scanned for codes and see what ECU says about the fail safe lite( what made it come on). Lastly have codes removes and ECU reset.
Usually if you didn't have an electrical problem (battery dying) I would say the output shaft is worn time for a rebuild.

Posted on Jun 04, 2010

  • JIMMY Jun 06, 2010

    take the vehicle to a transmission shop. if your up and running you can't car to move sounds like transmission. REMEMBER 75% of all transmission problems are battery related

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Just got my 2005 Explorer fixed. I had alarms start with Gas Cap, then Avdtrack, then ABS and finally the dreaded fail safe mode. After a new PCM, Thottle body and pedal. Two weeks and $1,900 later, the tech found a Junction box mounted to the frame just below the passenger side door was full of water. He loaded it with dielectic grease and I am cruising.

Posted on Jun 05, 2010

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I replaced the switch for the first time and it took me 15 minutes.

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