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Ignition won't shut off even with key removed.

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Old Jan 25, 2014 | 08:43 AM
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FLWhite92RS's Avatar
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Ignition won't shut off even with key removed.

Hello all, Having issues with my ignition not shutting off the motor once turned to the off position and key pulled out. All accessories turn off it's just the motor won't shut off. Any idea where I should start to look?

Thanks
Adrian
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Old Jan 25, 2014 | 09:18 AM
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TTOP350's Avatar
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From: Il
Car: 1989-92 FORMULA350 305 92 Hawkclone
Engine: 4++,350 & 305 CIs
Transmission: 700R4 4800 vig 18th700R4 t56 ZF6 T5
Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: Ignition won't shut off even with key removed.

Sounds like the steering column is loose, ign switch is bad or out of adjustment.
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Old Jan 25, 2014 | 09:29 AM
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From: Mattoon Il.
Car: 1989 IROC-Z / T-Top -1987 GTA
Engine: 305 (LO3) _350 (L98)
Transmission: 700R4 _ 700R4
Axle/Gears: 2.73 L.S. - ???
Re: Ignition won't shut off even with key removed.

a truck i had also did this ... turned out the way the fans were wired in kept power to the coil ... had to unplug the fans to get it to shut off ... lol

not saying it is the fan, but could be power to the coil from the wrong place that is hot all the time ... not sure if you run a carb or its injected though, dont think it could do that if it is injected
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Old Jan 25, 2014 | 09:41 AM
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Re: Ignition won't shut off even with key removed.

It's a carbed 350 I have electric fans on a switch gonna check those as well as the column. As it's annoying and embarrassing getting to places and having to unplug the battery lol.
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Old Jan 25, 2014 | 09:55 AM
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From: Mattoon Il.
Car: 1989 IROC-Z / T-Top -1987 GTA
Engine: 305 (LO3) _350 (L98)
Transmission: 700R4 _ 700R4
Axle/Gears: 2.73 L.S. - ???
Re: Ignition won't shut off even with key removed.

put the hot wire to the dist. on a switch ... dont hack the wire though, just make a pigtail and run it to a switch inside the car ... if you cant find the problem right away
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Old Jan 25, 2014 | 10:18 AM
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8t2 z-chev's Avatar
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From: belle fourche,s.d.
Car: '82 z28
Engine: L83 5.7
Transmission: 700r4-1985
Axle/Gears: 3.42 posi
Re: Ignition won't shut off even with key removed.

depending on what alternator you are using and how it is connected,it could be backfeeding the turn on wire-a diode or small light bulb can be added to stop the backfeed if that is the cause of the run-on problem.
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Old Jan 25, 2014 | 10:37 AM
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From: Milltown, NJ
Car: 86 iroc, 02 v6 camaro
Engine: 350 HSR, 3800 V6
Transmission: T56, WCT5
Axle/Gears: 9in 4.11 posi, 3.23 LSD
Re: Ignition won't shut off even with key removed.

it could be dieseling, leaky jets still giving the motor fuel and the compression/heat igniting the fuel without spark.

unlikely but something to think about, people have had this problem on here before
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Old Jan 25, 2014 | 11:13 AM
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From: Washington State
Car: 1983 BB 1995 Z28 Camaro's
Engine: 454-350
Transmission: TH350-4l60e
Axle/Gears: 373 posi-Stock
Re: Ignition won't shut off even with key removed.

Wow let us know what you find out for future reference.
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Old Jan 25, 2014 | 12:07 PM
  #9  
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Re: Ignition won't shut off even with key removed.

my head is spinning just reading and thinking about all these post. Plan on diving into it later this afternoon when I get home got a long check list to go through.

Last edited by FLWhite92RS; Jan 25, 2014 at 06:11 PM.
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Old Jan 25, 2014 | 06:01 PM
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Re: Ignition won't shut off even with key removed.

Pulled the bottom of the dash and found a few crimped wires from the ignition switch, everything is working properly now gonna clean everything up tomorrow will let you know if anything changes.

Last edited by FLWhite92RS; Jan 25, 2014 at 06:11 PM.
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Old Jan 26, 2014 | 04:14 PM
  #11  
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Re: Ignition won't shut off even with key removed.

I was wrong same issue today, going to be spending some time finding this gremlin. Will keep you posted.
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Old Jan 27, 2014 | 08:09 AM
  #12  
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From: Washington State
Car: 1983 BB 1995 Z28 Camaro's
Engine: 454-350
Transmission: TH350-4l60e
Axle/Gears: 373 posi-Stock
Re: Ignition won't shut off even with key removed.

Thanks for the update.
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Old Feb 1, 2014 | 10:49 AM
  #13  
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From: Phoenix, AZ
Car: '57 Chevy 3200 pickup big window
Engine: L98 350...zz4 longblock
Transmission: corvette 4+3
Axle/Gears: 3.38:1
Re: Ignition won't shut off even with key removed.

start the car, let it run till you think the battery is charged from the start, then turn off the car, and while it is still running, unplug the alternator connector. if the engine shuts off, M.A.D. enterprises has a fix it kit for it.
look them up on line
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