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Ignition Fix EASY GMC Sierra or Chevy Silverado
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For the GMC Sierra or Chevrolet Silverado truck, there are some screws in the bottom of the steering column cover which need to be removed first. I did not demonstrate this in the video since I figured it was self explanatory. If you have noticed the "Security Light" coming on the dashboard message display, then this is most likely your ignition problem. The truck will sound like it is starting normal, but immediately shuts down. It sounds like to me that it does get spark plug ignition, but then cuts power. I am not sure it does or not, but that is what it sounds like for lack of a better description. Listen to the video to hear what my GMC Sierra 2500 (Chevy Silverado) sounded like. It took me 5 years to find out what the problem with my ignition was, since it was interment and hard to troubleshoot and fix that way. There was no engine codes being recorded in the computer since the truck thought it was doing the right thing by shutting down when the security feature was being activated. This feature was designed to prevent theft when a car or truck is hotwired. The vehicle needs the key to start, otherwise it thinks someone is trying to bypass normal key ignition. There are a few systems that must communicate perfect to allow for normal start. This video shows just one simple wire that may be causing an interruption in voltage, causing the security system to prevent the car from starting. You may have a different problem interrupting your car's computer security check.
How to fix the ignition:
A sensor tells the security system whether the key is in the ignition or not. This is a common feature in the GMC, Pontiac, Oldsmobile, Saturn, Chevrolet and other past and present GM brand vehicles. The wire, which is connected to that sensor, comes loose or corroded and needs to be secured or cleaned. Some people have chosen to go further in the ignition unit and actually solder the connector wires in place, but this requires a lot more disassembly and time and probably unnecessary. Wedging a shim may seem primitive, but just hot gluing the plug may not guarantee you the best electrical connection. You can also go ahead and pay an auto mechanic to fix the ignition if you like unnecessarily spending hundreds of dollars. Remove the wire plug connector and visually inspect the connections and clean with electrical parts cleaner which can be found at most auto parts stores. Replace the plug as shown on the GMC Sierra truck in the video. Wedge a shim in the connection and secure the new connection with hot glue, silicon or any other glue that can be fairly easy to scrap off and remove if further maintenance is required. Replace the steering column cover and that's how you fix the ignition in your GMC Sierra or Chevy Silverado 1500, 2500 and 3500.
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