7.3 wont kill
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Joined: Oct 2008
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7.3 wont kill
when i shut off the key on my 02 7.3, the motor keeps running...till the fog lights are turned on, not just the head lights, but the fog lights, wont kill any other way, if headlights are on high which keeps the fogs off, still keeps runniing, any ideas? dealer and my local mech are baffled
Post Fiend
Joined: Mar 2007
Posts: 26,966
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From: Texas
Welcome to FTE bigjohn. What happens when you leave the key in the on position and turn on the fog lights? What kind of aftermarket stuff has been added to the truck (alarm, remote start, etc.) Any other electrical goodies added to the truck? If you turn the key off, then try to shift it into gear and drive off, will it die then too?
If nothing's been added, I would start by pulling and checking the ignition switch. The fuel injectors won't fire without electrical current, so either the key switch is not working or it's been bypassed.
If nothing's been added, I would start by pulling and checking the ignition switch. The fuel injectors won't fire without electrical current, so either the key switch is not working or it's been bypassed.
Of the next Riffraff East
Joined: Oct 2004
Posts: 8,679
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From: Concord NC
Welcome to the site. How long have you owned the truck? If it's new to you, it may have a turbo saver installed, or like Chris suggested, after market alarm system. Other than that, a bad key switch it the only other thing that comes to mind.
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7.3 wont die
Ive owned the truck since new, thuck was wrecked badly 2 years ago, but problem just appeared few weeks ago, at first only sometimes, but now always, although if you leave it in the off position long enough sometimes it will kill after a while.
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Joined: Apr 2005
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From: round rock, tx
where are you located?
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no alarm or timer or remote start, if key is off cant move gearshift, all accessories die(radio, a/c, gauges) just not motor
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Cross-Country
Joined: Mar 2005
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From: Sunshine, LA
John - I do not know the solution to your issue but I would be happy to have alook with you, sometimes an extra pair of eyes can catch something!? I am in Sunshine, right on the Mississippi and about 20 miles down river from LSU! Do let me know if you are interested!
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