Question about 1991 GMC Sierra

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Ignition stuck my ignition switch is stuck in the on position with the key in it and a cannot turn the truck off wondering if you might know the answer on how to fix it

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  • jasonaragon2 Feb 18, 2009

    I got the truck its self turned off by simply pulling the coil wire. So my main question was why wasnt my key/tumbler returning back to the off position but i have it solved by replaceing the hole key switch itself

  • marty metzger May 11, 2010

    you'll run out of gas. engine stoppeed. problem solved. Seriously, can you pull fuel pump fuse.

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Sounds like key tumbler broken internally , disconnect coil to stop engine and disconnect battery to stop battery drain til problem fixed, may have to jiggle key and tumbler til it releases key ,

Posted on Feb 23, 2009

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1 Answer

How do I know if my ignition switch is bad ?


The electrical part or the key lock cylinder part ?
Ignition Key Cannot Be Removed from the Ignition Lock Cylinder
Did you review the Steering Wheel and Column Description and Operation and perform the necessary inspections?
Go to Step 2
Go to Steering Wheel and Column Description and Operation

2

Verify the key cannot be removed from the ignition lock cylinder.
Is the key stuck in the lock cylinder?
Go to Step 3
System OK

3

Is the vehicle equipped with a manual transmission?
Go to Step 6
Go to Step 4

4

Turn the ignition key to the OFF position.
Can the key be turned to the OFF position and be removed?
Go to Step 6
Go to Step 5

5

Verify the adjustment of the automatic transmission cable. Refer to Shift Control Linkage Adjustment in Automatic Transmission - 5L40-E/5L50-E.
System OK
Go to Step 6
Ignition Can/Cannot Be Turned Off with Transmission in Any Gear
Operate the system.
Does the system operate normally?
Go to Testing for Intermittent Conditions and Poor Connections
Go to Step 2

2

  1. Push the ignition lock cylinder control actuator release button which is on the underside of the ignition key cylinder.
  2. Turn the key to the OFF position and remove the key.
Were you able to turn the key to the OFF position and remove the key?
Go to Step 3
Go to Lock System Does Not Lock

3
  1. Turn OFF the ignition.
  2. Disconnect the ignition lock cylinder control actuator.
  3. Turn ON the ignition, with the engine OFF.
  4. Connect a test lamp between the battery positive voltage circuit and the ignition key/shifter interlock switch supply voltage circuit of the ignition lock cylinder control actuator with a test lamp.
Does the test lamp illuminate?
Go to Step 8
Go to Step 4

Aug 20, 2015 | 2006 Cadillac CTS

1 Answer

Sometimes after I put my 2000 Buick Regal LS in Park and turn off the engine the ignition switch not the key gets stuck in the on and acc position. What causes this to happen?


Replace ignition switch (the tumbler portion) seems like its hanging up, and you shouldn't be able to remove the keys unless the switch is off.The park safety switch possibly. This switch tells the vehicle its in Park. Hope this helps.

May 26, 2014 | 2000 Buick Regal LS

1 Answer

Blazer turns off, but key occasionally gets stuck ignition?


Does the key not turn all the way back when it gets stuck? If the key gets stuck and won't turn all the way back to lock position, chances are the tumblers in the ignition switch are going bad.

May 19, 2014 | Chevrolet Cars & Trucks

1 Answer

Ignition switch is stuck on


Go to the auto parts store and buy a new ignition switch and key, remove the steering wheel and replace it.

Dec 19, 2013 | 2000 Buick Century

1 Answer

89 chevy corsica key stuck in the run position


ignition switch keylock cylinder is broken.

Apr 17, 2013 | 1988 Chevrolet Corsica

1 Answer

My key wont turn to off in order to remove my key from ignition while in parking


Ignition - Key Stuck In Ignition Switch/Won't Turn Bulletin No.: 06-02-35-005 Date: February 28, 2006 TECHNICAL Subject: Key Stuck in Ignition, Key Will Not Return to Off Position, Shifter Button Won't Release in Park Position (Adjust Shifter Detent Finger) Models: 2002-2005 Chevrolet Monte Carlo Condition Customers may comment on any of the following conditions: - The key is stuck in the ignition cylinder. - They cannot return the key to the off position to remove the key. - The shifter button won't release in the park position. Cause This condition may be caused by the detent finger shifting over time. This may result in mis-alignment and binding of the shift rod on the shift position guide.
WHERE YOUR SHIFTER IS YOU WILL HAVE TO TAKE IT APART ..MAYBE THE RUBBER BOOT IS IT THE WAY,OR THE SHIFT LOCK SELINOID WHENT BAD

Aug 05, 2011 | 2005 Chevrolet Monte Carlo

1 Answer

Just wondering if you leave car door open or closed when trying to get security light to go off


YOU CAN TURN OFF SECURITY LIGHT BY PUTTING KEY IN THE IGNITION SWITCH.TURN IGNITION TO ON POSITION,WITH ENGINE OFF.LEAVE KEY IN THE SWITCH IN ON POSITION FOR 10 MINUTES UNTIL SECURITY LIGHT TURN OFF.IF IT DOES.TURN OFF IGNITION SWITCH.WAIT 5 SECONDS THEN TRY CRANKING CAR.IF THIS DONT WORK TRY ANOTHER KEY DO THE 10 MINUTES SWITCH TRICK.IF STILL THE SECURITY LIGHT DONT TURN OFF YOUR THEFT SECURITY SYSTEM IN FAULT THE DEALERSHIP HAS TO FIX AND REPROGRAM NEW KEY IN SWITCH OR BCM CONTROL MODULE..

Sep 13, 2010 | 1999 Oldsmobile Alero

3 Answers

Ignition is stuck in run position


does your key stays in the ignition position? or can you turn it back to acc or lock? it might be a stuck ignition switch mechanism inside or a shorted circuit that latches the ignition...have it checked or you can try to open it the switch yourself..but with caution if this is your first time. Pls give me a feedback. thanks!


Aug 19, 2009 | 2008 Chevrolet Cobalt

1 Answer

My ignition switch wont turn got a new 1 cant get the old 1 off what can i do


Hello woodsvincent...The GM ignition switches are designed to be removed with the key in the on position. The lock tumblers in the old switch are likely stuck and/or worn, and if your key itself is worn that makes it worse. Disconnect the negative battery cable, and try another key thats in better shape if possible. Spray a little lubricant in the switch, wiggle and work the key and see if you can get it to turn to the on position...if you can, leave it there!! The switch can be replaced if you can't get it to turn, but it's a lot more labor intensive.
Let me know how it goes...and i will further advise.
Good luck and i hope this helps...

May 19, 2009 | 1997 Chevrolet Tahoe

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