The ignition switch is where the car key is inserted and turned to allow an electric current to power the starter and the engine. Like other car components, the ignition system can be damaged and malfunction. That’s why it is important to know the signs of a failing ignition switch to tackle the issue before it becomes worse.
A faulty ignition switch can cause electrical issues and inoperative accessories, leading to stalling while driving. This is because the circuits aren’t receiving the signal to power up the accessories and auxiliary functions. Well, in this reading, we’ll explore what an ignition switch is and signs it is failing.
Let’s get started!
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What is an ignition switch?
The ignition switch is a crucial component of vehicles, connecting the starter motor to the circuit that provides voltage. In older vehicles, it is part of the key barrel and activated by turning the key. In modern vehicles, the switch is activated by a computer, closing the circuit and engaging the starter motor.
In older key configurations, failure is unlikely, but if your vehicle is older, such as an EA, EB, or ED Falcon, the cause for intermittent no start could be in the ignition switch assembly located in the key barrel.
Understanding the function and warning signs of a faulty ignition switch is essential for maintaining a functioning vehicle.
It takes about 1–1.5 hours to replace a faulty ignition switch, depending on the car’s make and model. This is because the ignition switches are intentionally difficult to remove and replace due to anti-theft devices, despite the parts being relatively simple.
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What are the Symptoms of a Bad Ignition Switch?
The signs of a failing or bad ignition switch include difficulty starting the vehicle, engine stalling, sporadic loss of lights and other accessories, a starter motor that doesn’t make any noise, and trouble turning the key.
Difficulty starting the vehicle
This sign is the most noticeable sign of a bad ignition system. If you turn the keys in the ignition and the car cranks but does not start, you may have an ignition problem.
Engine stalling:
Stalling car could be a sign of a different problem; however, a bad or faulty ignition switch is something you should check out.
Sporadic loss of lights and other accessories:
Bad electric supply from the ignition to the car’s accessories, such as the radio, wipers, or headlamps, could be a sign of a bad ignition switch. although other issues could cause this.
The starter motor doesn’t make any sound.
If a car’s starter motor is not making any sound when the key is turned, it could be a sign of a faulty ignition switch. Other issues, such as a dead battery or faulty electrical wiring, could also be the cause.
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Trouble turning the key:
A big sign of a faulty ignition switch is when you have trouble turning the key. This means there is significant damage to the component and it needs a fix ASAP.
The steering wheel is stuck.
If you are unable to remove your steering wheel from the lock position, it could be a sign that your ignition switch has started failing. Locking the steering protects your car when parked, but if you have difficulty unlocking it, then something is wrong.
The ignition switch is located behind the ignition cylinder on the steering column and is responsible for activating most of the vehicle’s electrical systems.
The dashboard lights flicker.
Several problems, including a low battery charge or an oil change alert, may be detected by warning lights. However, a flickering dashboard light in a car might be an indication of an ignition problem. A visual examination of the car may help with discovering the source of the problem.
Bad Ignition Switch Replacement Cost
The lock cylinder with immobilizer requires part number 81900Q5D00, which can be found online for around $300. Adding another $100-$150 for key programming brings the total cost to $550-$700 if you have the immobilizer. This price is of 2024.
Without the immobilizer, the cost would be in the $300–$450 range. Some shops quoted $500–$700 for the repair, and a locksmith referred the individual to an auto shop or dealer for replacement.
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FAQs
Can you start a car with a bad ignition switch?
You may safely start your vehicle in a crisis by preventing a faulty ignition switch. This involves wiring the starter to the battery directly through a relay or jumper wire. Although this is a temporary solution, it should only be used in serious situations and calls for prudential behavior.
Can a bad ignition switch cause a power steering problem?
A flaw in GM’s ignition switch made it feasible to switch the ignition to the “accessory” or “off” position while the automobile had been in motion. This might end up in the loss of airbags along with power steering and brakes.
How to fix ignition switch problems?
Easy Solutions for An Ignition Key That Is Not Turning
Make an attempt to turn the steering wheel.
In the ignition, wiggle the key.
Attempt to apply oil to the lock.
Examine the battery or the gearshift.
How do I know if I need a new ignition switch?
Symptoms of a Bad Ignition Switch
The engine is unable to start. The most obvious sign that the ignition system has failed is this.
The key isn’t turning.
The automobile stalls.
There’s no sound coming from the starter.
The steering wheel is cramped.
The automobile’s accessories cannot be turned on.
The lights on the instrument cluster flicker.
How can you tell the difference between a bad starter and a bad ignition switch?
When you fully turn the key in the ignition to start your vehicle, the starter motors should produce noise. It may happen that there is a problem with the ignition switch of the car if you turn the key and nothing occurs.