2008 Ford Expedition 5.4L Code P0012 Fixed by Computer Reset?

2008 FORD EXPEDITION
56,000 MILES • 5.4L • V8 • 4WD • AUTOMATIC
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ANNIE304
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I recently drove my 2008 Ford Expedition (5.4L engine, 56,000 miles) about 100 miles out of town (45th HS Reunion). When I pulled into my motel parking lot, it would barely idle. (I had made one stop on the road with no idling problems.) After checking into my room, I restarted - still rough idle and check engine light came on. A fellow grad who still lived in the area had a diagnostic and checked the codes. It threw a P0012. An online search convinced my friend that it was a more complicated problem than he was comfortable dealing with. Two days later a rollback towed it to a local mechanic who merely reset the computer (did not just clear the code, if I understood correctly) and it idled perfectly. I drove it home the next day, stopping once for gas - no idling issues, no check engine light. My question: could this have really "fixed" the problem? I am a 63 year old female and afraid to drive this vehicle. Should I take it to my Ford dealer or neighborhood mechanic? I know that restarting my laptop can solve many a problem, but can it be that simple with a vehicle that wouldn't run well enough to drive to the repair shop? Your opinions will be greatly appreciated. Thank you!
May 25, 2014 at 2:37 PM
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HMAC300
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yes what that is the cam is overretarded and the pro used the scanner to reset the keep alive memory in computer and probably tightend your battery cables.
May 25, 2014 at 3:44 PM