Ignition switch replacement instructions please

Tiny
DERRICK8974
  • MEMBER
  • 2007 GMC SIERRA
  • 150,000 MILES
Security light stays on and engine will start then shut down after couple of seconds. Tried resetting by turning ignition on for ten minutes then off three times to no avail. Is this ignition switch?
Thursday, January 3rd, 2013 AT 6:32 AM

29 Replies

Tiny
SEVAG P
  • MECHANIC
  • 405 POSTS
Hello,

please read the fault codes then send to us to narrow down our problem.

have you tried to start the car with another spare key? is the vehicle locked and unlock by using remote control?. try to disconnect the battery wait for 20 minutes, then reinstall and try to start the engine.

use our link below try to reset the system again.

https://www.2carpros.com/articles/how-to-reset-a-security-system

Check our link below how to read fault codes.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Try to perform the instruction then we continue our diagnostic steps if the problem from ignition switch or not.

check the diagrams below how to replace ignition switch in a case of problem defect.

let us know if you need more help.

thank you.
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Monday, February 8th, 2021 AT 6:59 AM
Tiny
MBOUDREAUX225
  • MEMBER
  • 1 POST
  • 2003 GMC SIERRA
  • 4.8L
  • V6
  • 2WD
  • AUTOMATIC
  • 280,000 MILES
Someone broke into my truck and now I can’t even turn my ignition.
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Monday, February 8th, 2021 AT 12:22 PM (Merged)
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good morning,

I attached the procedure for replacing the key. Since it will not turn to the on position for removal, you will need to drill out the pin for the release of the cylinder.

https://www.2carpros.com/articles/ignition-switch-wont-turn-stuck

If you call a locksmith, they will come to you and repair it on site.

Roy

IGNITION LOCK CYLINDER REPLACEMENT

Removal Procedure
1. Disconnect the negative battery cable.

Caution: When performing service on or near the SIR components or the SIR wiring, the SIR system must be disabled. Failure to observe the correct procedure could cause deployment of the SIR components, personal injury, or unnecessary SIR system repairs.

2. Disable the SIR system. See: Air Bag(s) Arming and Disarming > Procedures
3. Lower the hush and knee bolster.
4. Remove the steering column trim covers.
5. With the key installed, turn the key to the RUN position.

imageOpen In New TabZoom/Print

6. Install an allen wrench into the hole on top of the lock cylinder housing. Push down on the allen wrench to release the tab on the lock cylinder inside the lock cylinder housing.

imageOpen In New TabZoom/Print

7. Slide the lock cylinder out of the lock cylinder housing.
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Monday, February 8th, 2021 AT 12:22 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
Hi,

I believe you will need to remove the ignition lock case. Take a look through these directions and see if they will be helpful.

Note: The attached pic correlates with the directions. Note this is for the removal of the entire lock cylinder case unit. If you want only the lock, let me know.

____________________________________

2003 GMC Truck C 1500 Truck 2WD V8-4.8L VIN V
Ignition Lock Cylinder Case
Vehicle Steering and Suspension Steering Steering Column Service and Repair Removal and Replacement Ignition Lock Cylinder Case
IGNITION LOCK CYLINDER CASE
Removal Procedure

1. Disable the SIR system.
2. Remove the ignition switch. See: Steering Column > Removal and Replacement > Ignition Switch
3. Remove the turn signal cancel cam. See: Steering Column > Removal and Replacement > Tilt Head Housing
4. Remove the park lock cable from the lock cylinder housing.

See pic 1

5. Remove 3 TORX screws.
6. Remove the lock cylinder housing from the steering column.

Installation Procedure

Notice: Refer to Fastener Notice. See: Engine, Cooling and Exhaust > Vehicle Damage Warnings > Fastener Notice

see pic 2

1. Install 3 TORX screws into the lock cylinder housing. Tighten the TORX screws to 7 Nm (62 in. Lbs.)
2. Install the turn signal cancel cam. See: Steering Column > Removal and Replacement > Tilt-Head Housing
3. Install the park lock cable into the lock cylinder housing.
4. Install the ignition switch. See: Steering Column > Removal and Replacement > Ignition Switch
5. Enable the SIR system.

Let me know if this helps.

Joe
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Monday, February 8th, 2021 AT 12:22 PM (Merged)
Tiny
BWATERS
  • MEMBER
  • 1 POST
  • 2003 GMC SIERRA
  • V8
  • AWD
  • AUTOMATIC
  • 100,000 MILES
Over the past couple of weeks, my digital clock has reset to 12:00 when I start my truck as if the power was interrupted. It has become more and more frequent. I also notice my headlights would dim slightly on occasion. This morning as I switch my transmission from reverse to drive, all of the sudden all my dash indicators lit up as when you first start the car. Then when I stopped and turned my ignition switch to the first position after run to turn off my engine, the car went completely dead, no power at all. I played around with the switch, the shifter and then I think it was when I hit my brake pedal, all of the sudden the power returned! Please help with any suggestions on whether its possibly the ignition swithch, a relay, or whatever. Thanks.
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Monday, February 8th, 2021 AT 12:23 PM (Merged)
Tiny
MASTERTECHTIM
  • MECHANIC
  • 4,749 POSTS
First check the connection at the p[ositive side of battery, if it has 2 positive cables then there is a lead spacer between them thats probably worn out, if thatts ok then replace ignition switch
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Monday, February 8th, 2021 AT 12:23 PM (Merged)
Tiny
RIDINGHIGH2002
  • MEMBER
  • 1 POST
  • 2002 GMC SIERRA
I went to start my truck and the key wont even turn at all in the ignition and the steering wheel I noticed isnt locked like it usually does and I cant shift into any gears. The key slided in and out but wont turn at all. What is broke on it what do I need to replace and how much will it cost about. Thanks. I dont know if anyone is local but im in la mirada buena park area of so california and need to get this fixed immediately. Thanks brian.
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Monday, February 8th, 2021 AT 12:23 PM (Merged)
Tiny
DENNYP
  • MECHANIC
  • 1,824 POSTS
Sounds like the tumblers in the lock cylinder are stuck. Try squirting a small bit of WD40 into the cylinder, then jiggle the key while attempting to turn it. If this doesn't work, you will need to replace the lock cylinder. The cost will depend greatly on how difficult it is to remove the damaged cylinder.
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Monday, February 8th, 2021 AT 12:23 PM (Merged)
Tiny
JANICET
  • MEMBER
  • 1 POST
  • 2001 GMC SIERRA
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 125,000 MILES
I need to change the ignition cylinder and need direction on how to accomplish that. I have purchased the new cylinder from a dealership and had it keyed to my VIN. I have the steering column cover off. Now what?
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Monday, February 8th, 2021 AT 12:23 PM (Merged)
Tiny
DEONCOLLINS69
  • MEMBER
  • 4 POSTS
You will need a small punch or even a paper clip to release the cylinder. Unhook the battery before you start this process.
With the bottom and top cover off look at the area around the cylinder. You will see a small hole about 1/32 to 1/16 in size on the top side of the assembly. Note there is another hole about 1/4 in size just below it. Turn the key forward until you are in the start position. Put the paperclip in the hole and push in. At the same time pull out on the cylinder. It should release easily. Now just slide the new cylinder in place and turn it.
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Monday, February 8th, 2021 AT 12:23 PM (Merged)
Tiny
CHRIS MCKOWN
  • MEMBER
  • 1 POST
  • 2000 GMC SIERRA
  • V8
  • 4WD
  • AUTOMATIC
  • 170,000 MILES
Key will not turn to start vehicle without maximum effort. What will have to be replaced? Ignition will not turn easily.
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Monday, February 8th, 2021 AT 12:23 PM (Merged)
Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
Try lubricating lock cylinder with WD40. You can find more information about this common issue on our "First Things to Check" page, linked on the left the page.
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Monday, February 8th, 2021 AT 12:23 PM (Merged)
Tiny
GO88GODJ
  • MEMBER
  • 1 POST
  • 2000 GMC SIERRA
  • 129,000 MILES
It is stuck in the start mode. We removed the starter and ignition fuses and removed the battery cuz it won't turn off. What can I do

My daughter started the truck and the ignition is stuck in the start mode. The key will not budge.

The starter turning and so w remove the fuses for the ignition and the starter and disconnected the battery so it would not catch fire. How do I get the key out and keep his from happening again?
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Monday, February 8th, 2021 AT 12:24 PM (Merged)
Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Probably a collapsed ignition key barrel, if the key will not turn this is normally the cause.
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Monday, February 8th, 2021 AT 12:24 PM (Merged)
Tiny
MAYNARDMAN
  • MEMBER
  • 9 POSTS
I had a 2000 silverado that the key stuck on. But mine stuck in the accessory position.I got the key to turn by removing the passlock cable that is attatched to the ignition cylinder housing. You have to remove the column trim and the cable should enter from the bottom of the housing. Once you get the cylinder back to the off position, leave the passlock cable out, turn the key forward too the on position, and depress the locking pin on top of the housing as you turn the key back to the off position. The cylinder should come out at this point.
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Monday, February 8th, 2021 AT 12:24 PM (Merged)
Tiny
JOHNNYMACDIVER
  • MEMBER
  • 2 POSTS
  • 2000 GMC SIERRA
  • V8
  • 4WD
  • AUTOMATIC
  • 155,000 MILES
I am looking for installation instructions to remove and replace the keyed ignition cylinder. 5.3L SLE Extended
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Monday, February 8th, 2021 AT 12:24 PM (Merged)
Tiny
RACEFAN966
  • MECHANIC
  • 5,029 POSTS
Ok first disconnect neg battery cable. Now remove the upper and lower steering column trim covers. Set tilt in mid position. Remove steering wheel make sure to remove the air bag fuse first. Roll back the shift lever seal, remove tilt wheel lever. Hold ignition in start position and use a bent awl or small allen wrench and press lock cylinder retaining pin (see pick), release lock cylinder to run position and remove lock cylinder. Put in new lock cylinder and put it all back together.


https://www.2carpros.com/forum/automotive_pictures/249564_Graphic_198.jpg

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Monday, February 8th, 2021 AT 12:24 PM (Merged)
Tiny
JOHNNYMACDIVER
  • MEMBER
  • 2 POSTS
Thank you! Thank you! Thank you! I did not need to remove the steering wheel but everything else was right on!
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Monday, February 8th, 2021 AT 12:24 PM (Merged)
Tiny
RACEFAN966
  • MECHANIC
  • 5,029 POSTS
Great glad to hear it. Hope everything is working correctly. If there is anything else just let me know.
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Monday, February 8th, 2021 AT 12:24 PM (Merged)
Tiny
JSEG048
  • MEMBER
  • 1 POST
  • 1994 GMC SIERRA
  • 52,000 MILES
Last night I drove my husbands truck for Amish (we live in PA!). When I got to the guys house, I turned the truck back on to leave but the gear shift was stuck. The Amish guy had to help me pull it down to D. I drove the guy to a store and when we were about to leave, the gear shift had the same issue; it was stuck on park. Again he had to help me get it down to drive, by pushing it really hard down to D. So I finally finish up driving for him and get home. I park the truck in it's usual spot and go to turn off the truck, but the key and ignition is locked in the 'on' position. The truck sat there for maybe up to an hour as my husband and I did everything we could to turn it off. We tried moving the wheel, putting it in neutral, tapping the key with a screwdriver; everything. My husband said it was probably my fault because whenever I turn his truck on, I "turn the key too far forward". So I guess his theory is that I turned it too far and it locked up. Now that I type out the whole story, I wonder if pushing the gear shift thingy too hard cause something to happen? I called mechanics and lock smiths and all are confused. We are going to bring it into the dealership tonight or tomorrow for a quote, which I'm really scared about.
Have you ever experienced this before? If you have fixed this issue before, what price did you charge? I understand that you can't diagnose my issue online but I thought I'd at least get some opinions as to what may have happened with his truck.
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Monday, February 8th, 2021 AT 12:24 PM (Merged)

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