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PT continues to run with key in off

 
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Old 13 Mar 2005, 06:35 pm
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Location: Gettysburg, PA, USA.
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Default PT continues to run with key in off

My 2001 base-model PT Cruiser (automatic)will intermittently continue to run when the ignition switch is in the off positions w/the key removed. To get the car to stop I either have to pull a fuse or wait anywhere from five minutes to half an hour for the car to stop. Sometimes it doesn't stop and I just pull the fuse.
I've had it to the dealer three times. First time he replaced the battery terminals (which had corroded badly. What that had to do with anything I don't know. The second time he replace some electronic part associated with the ignitions switch. As I still use the original key I don't think he replaced the actual switch.
Does anyone have any idea what's going on?
Thanks.
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Old 13 Mar 2005, 07:09 pm
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If the dealer is just going to throw parts at it (which is the only way if the problem doesn't happen when he's looking), try the ASD relay. This is just a guess, but that suplies power to the fuel pump and the computer. The ignition just triggers it. If the relay 'sticks', that can cause your symptom.
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Old 14 Mar 2005, 08:37 am
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I would think the obvious thing would be either relay Purple04 mentioned or the ignition switch itself.
Replaced battery terminals?? Yeah, that's related....
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Old 14 Mar 2005, 09:22 am
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The dealer suspected the the corrosion on the batter terminals may have caused the battery to drain just enough to effect the computer. Sounds a bit fishy (more like taking a shot in the dark) but it needed to be done so ...
I think I have received better information here than at the dealer. I might check out an independent mech.
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