Left key on overnight and now idles rough, no power. - Ford Powerstroke Diesel Forum
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Old 06-10-2011, 06:55 AM
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Question Left key on overnight and now idles rough, no power.

I accidentally left the ignition key on overnight and now my truck starts hard, idles rough, and has no power. The truck is 97 F350 7.3D Manual tranny with 250,000 miles. I tried disconnecting the battery for a few hours to reset the computer, but that didn't help. Check fuses, they are ok. Any suggestions on what part(s) may have burned up by having the key left on?
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Old 07-25-2011, 07:13 PM
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mightve fried the GPR or GP's might account for the hard starting....
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Old 07-25-2011, 09:21 PM
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Key left in RUN, cold engine, the glow plugs will still only run for the first two minutes or so. Did you happen to look-see (or feel-see) how hot the PCM and/or IDM were when you went out and discovered the sitch?

Batteries would be low, requiring extra current from the alternator, lowering the voltage for a while; dunno if that would affect the power, though (maybe lowering the injector voltage?). Did you try throwing the batteries on a slow charge?
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