How to Fix Car Ignition Problems
A car won't start unless the ignition switch transmits an electrical signal to the starter motor. Normal wear and tear over time can cause the switch to malfunction.
Utilizing specially designed tools, you can remove your steering column trim and gain access to the ignition cylinder module. Check your repair manual for guidance on how to do this properly.
1. Make sure you check the Switch
A defective switch is among the most frequently encountered ignition issues. It acts as a bridge between two contacts, regulating when relays activate and deactivate. It is less likely to fail because it doesn't channel full power from devices like the starter. However it's still possible for the switch to get damaged or corrosion-prone.
A defective switch can be recognized by a slow time turning the key. This can be caused by many things such as improperly inserting the key, or the mechanism wearing out over time. It's also commonplace for people to mix up their keys to their car with those of another's, which could lead to mechanical damage.
Before calling a locksmith you can try a few things. First, make sure that the battery is fully charged and there aren't any electrical issues with the system. It is also important to examine the voltage of each component to ensure that they are supplying enough power. After you've completed these steps, you can begin troubleshooting.
Fortunately the ignition switch is pretty simple to replace. It's connected to the ignition cylinder, a round module that connects everything. To replace it, you'll need a flathead screwdriver and something that is long enough to push the pin inside. It could be anything from a paintbrush handle to a Kabob skewer, but you should stay clear of any brittle material that could break within the hole.
Once you're ready to complete the work, you'll have to remove any trim pieces covering the area around the ignition switch. After you've removed the trim pieces remove any screws holding the switch in position. Then, gently remove it. Depending on the model, you may need to disconnect any cables connected to it. If you have a manual for the vehicle you own, this will tell you exactly how to do this.
It's best to get the ignition switch replaced by a professional in the event that it isn't working. The replacement process involves turning off the steering column, which could result in unintentional airbag deployment if done in a wrong manner. It is best to let your local locksmith take care of this.
2. Check the Wire
The car may not start if you are unable to turn the ignition key or it won't start. This could be due to any variety of components in the ignition system. It is important to know how the ignition system works to be able to spot issues and make the necessary repairs.
The ignition switch is an electrical switch that has multiple poles and is operated by a key. It has four positions including off run, accessory, and "lock." When the switch is locked (which is usually shown by an red light), the ignition circuit is in operation and it is not possible to start your car.
To determine whether the ignition switch bad or if the ignition coil is defective, you will need to do a quick electrical test with a voltage meter. If the ignition switch is set to run, the voltmeter should show around 12.6, If the voltage is lower than that it indicates that there is an open circuit within the system. It could be the battery, solenoid, or the ignition coil.
Disconnect the electrical connector from the ignition switch to ensure no other components interfere with the test. Set the voltmeter to the resistance or continuity modes and then place one lead on one of the terminals of the ignition switch. The other leads should go to the positive terminal on the battery. If the voltage gauge reads "open" or doesn't register any voltage then it's time to replace the switch.
Make sure you use a new ignition key and high-quality ignition cylinder when replacing the switch to ensure that your vehicle starts and runs correctly. When replacing the switch, ensure not to strike the pins of the ignition cylinder using your tools. Otherwise, they will become stuck and the engine won't run. In certain vehicles, you'll need remove the steering column and the gear selector to get access to the ignition cylinder. This can be a challenge and isn't recommended until you have a vehicle's owner's manual that says it's safe. Otherwise serious damage to the steering column or shifting mechanism is likely.
3. Check the Cylinder
If you've sifted through the battery, wiring and ignition switch and still cannot get your car to start, it may be time to check the cylinder. The cylinder is the part that holds the key. It is mechanically connected to the steering lock to ensure that thieves can't drive the car without it.
If your cylinder is beginning to wear out, you may notice that the key won't turn. The pins of the cylinder could become stuck when they adapt to your key's shape. This can cause your car to not start. Alternatively, the cylinder may be shaky, but a tap with the tack hammer may assist in releasing it. Be careful not mixing up the springs and ensure that the key is correctly installed.
Another sign that your cylinder is going bad is when you have to move the key around and test it in various positions before it gets started. This is a sign of trouble and should be addressed immediately, since it will only get worse over time.
To test the cylinder, you will need to remove the steering wheel cover and disconnect the battery. Then, you'll be able pull out the old ignition switch as well as the cylinder made of metal. If you don't have an extra ignition switch lying around, it's possible that you can take your original ignition switch and cylinder to a locksmith to reuse them as long as they're in good condition. After replacing the switch and cylinder, ensure that you reconnect the wiring harness and secure it and reattach any covers or panels that you have removed.
4. Make sure you check the Spark Plugs
The spark plug is the last link in your ignition system chain. The engine won't start if the spark plug breaks. This can take the form of your car not starting at all, or may start but then run poorly. In either case, the cause is likely to be one of a few things that hinder or prevent electricity from crossing the spark plug gap which ignites your engine's air and fuel mixture to start.
Be sure to use protective tools and gloves before working with your spark plugs. Spark plugs can get very hot and cause serious injuries if touched by hands without gloves.
When a spark plug is bad, you might observe that the edge of the central electrode has a light gray or brown residue on it. The electrode could also have a dark coating. These deposits or fouling can stop high-voltage electrical current from crossing the gap between your spark plug, igniting an engine.
If you suspect that your spark plugs might be the culprit You can test them if you remove them from the tube that is inside the ignition coil. g28carkeys.co.uk can do this by disconnecting the coil from the plug wire, and following the appropriate procedure for your vehicle to remove the components that cover the spark plugs. After removing the plugs, place them on a metal surface that is grounded and start the engine. If they're working you will be able to see a strong blue spark on the point of the central electrode.
If you don't see a spark, you've found the problem. The next step is to go backwards through your ignition chain and test each part until the spark plugs aren't working. All systems will wear out and eventually break, and this is particularly applicable to ignition systems. Regular maintenance can reduce the time it takes to repair and avoid major problems at the worst possible time.
