Ignition Fix EASY GMC Sierra or Chevy Silverado. How to fix ignition in GMC and Chevrolet trucks and cars. This is one way to fix a very complicated electrical system in the Chevrolet and GMC cars and trucks. Some are easy fixes with loose or bad electrical connections. Others involve the ignition switch itself, and others involve one of the computers that the system communicates with when starting the vehicle. The security system may have a number of issues, including the installation of a remote starter, causing the car or truck not to start. Most complaints involve a blinking security light. This is one many problems to check before exploring security system bypass or other more involved solutions discussed in other videos. This ignition defect is causing engine starting problems in many GM manufactured vehicles such as Pontiac, Oldsmobile, Saturn, Hummer and Cadillac. In this video I am demonstrating the ignition repair on a GMC Sierra 2500 HD 2001. The Chevy Silverado 1500 2500 and 3500 are virtually the same vehicles as far as ignition system fix goes. There are different types of security systems for different models and year vehicles. This problem occurs in minivans, cars and SUVs as well. There has been more reports of ignition Anti Theft defects and the security light flashing in more cars and trucks. This is one of the easy fixes for the common ignition starting problem, but GM needs to recall this issue and fix it for us. The anti theft security feature is more of a problem for the car owners, than the potential thieves. I also have had problems with the knock sensors and ABS sensors. I will post a video soon on the ABS sensor replacement. See original video when I first posted this problem here http://youtu.be/ty_aNO0Scwk
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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