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ignition system

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How Long Does an Ignition Trigger Last?
In order to crank a car, there are elements of the electrical and the fuel system that have to work together. As the car key is turned over, the ignition coil will...
How Long Does an Ignition Switch Last?
Most car owners fail to realize just how much work getting a car started is. In order for this process to work the right way, a variety of different parts on the...
How to Install an Ignition Switch
When your ignition switch fails, it can cause a number of different issues. You may experience anything from a failure to start, to a stalling problem, to a series...
How to Unlock a Steering Wheel
When your steering wheel locks it is usually at the worst time. The good news is that it is an easy fix. The steering wheel locks for many...
How to Start a Diesel Truck
Starting a diesel engine is a lot different than starting a gas-powered engine. Whereas a gas engine starts when the fuel is ignited by the spark plug, diesel...
How to Remove, Install, and Adjust Ignition Timing
Ignition distributors help spark the gas and air in the engine. Worn distributors need to be removed to be cleaned to maintain proper ignition timing.
How to Test a Spark Plug Ignition Coil
An ignition coil is a vital component of today’s modern engine management system. Virtually all vehicles manufactured today use ignition coils to provide the spark for the engine’s spark plugs. An ignition...
What Does the Ignition Switch Warning Light Mean?
The ignition switch warning light could mean there's an issue with the ignition system or the car key. It could be due to a glitch or worn out key.
How to Start a Prius
The Toyota Prius was a game changer when it was first introduced back in 2000. As one of the first commercially successful hybrid vehicles, it eventually helped launch an...
How to Replace an Ignition Relay
Common signs of a damaged or broken ignition relay include a low/dead battery, the car stalling or not starting, or loss of power to the dash lights.
How to Replace the Electronic Spark Control Module
The car ignition has an electronic spark control module that fails when the Check Engine Light illuminates or if the engine does not start.
How to Replace an Ignition Lock Assembly
An ignition lock assembly can fail from constant use or broken keys inside the tumbler. To replace it, all you need are some tools and a new cylinder.
How to Replace an Electronic Ignition Pickup
The electronic ignition pickup is part of the ignition distributor. Signs of failure include intermittent misfiring or failure all at once.
How to Replace an Ignition Trigger
The ignition trigger fails if the engine is misfiring or has trouble starting. The check engine light may illuminate if the ignition trigger fails.
How to Replace an Ignition Lock Cylinder
The ignition lock cylinder is usually at fault if there is an issue with the ignition system. A common sign of failure is a car that won't start.
How to Replace an Ignition Ignitor
The ignition ignitor sends a signal to supply power and start the engine. A common sign of failure is a disruption in the engine's starting process.
How to Adjust Timing on a Car
A well timed ignition will allow the engine to run powerfully and efficiently. The timing needs adjustment when the engine runs too lean or too rich.
How to Replace a Ballast Resistor
The ignition coil cannot get proper voltage if the ballast resistor is broken. Signs are a crank without a start or a start and an immediate stall.
How to Replace Ignition Cables (Spark Plug Wires) in Your Car
The ignition cable, or spark plug wire, carries a signal from your vehicle’s computer to the spark plugs. This is crucial to the ignition system.

Related questions

Question
If I change spark plugs and wires do I change the rotor and distributor cap also?
It is recommended to replace distributor cap and rotor at the same time you are having the spark plugs and spark plug wires replaced. The cap and rotor contacts will wear down just like the spark plug electrodes wear down...
Question
The car turns over but doesn't actually starts
An engine is stalling inspection will reveal the cause. When the vehicle is cold, the mixture has to be enriched in order for the engine to run initially. That enrichment signal is sent (to the fuel injectors) if the appropriate...
Question
Factory remote start chirps once and doesn't start but starts when I hold key beside ignition?
Hi there. First check the remote battery and make sure that it is working. If the battery has not been changed for a long time, I suggest replacing the battery first. If you still have the same problem then the...
Question
Engine cranks when cold but not warm
A scope (oscilloscope) exam during those few minutes after it starts, and while the engine idles roughly, will reveal the cause. It is either ignition or fuel system related. To schedule a rough running engine diagnostic(https://www.yourmechanic.com/services/car-idle-is-rough-inspection) please feel free to...
Question
No spark?
Spark related problems generally will result from things like ignition coils, crankshaft position sensor, spark plugs, spark plug wires or ignition modules not working properly. When an ignition coil becomes faulty, there is generally a bit of warning as they...
Question
My truck turns over but stops turning over by itself and won't start back up.
Hi there. Sounds like you have a starter motor that is failing. When the starter relay gets hot, it will overload the ignition circuit and shut off when cranking. Check the battery cables to the solenoid on the starter and...
Question
How long can I drive my car with the engine light on?
Hi there. It is no good to drive a vehicle with the engine light on. The engine light is on for a sensor has picked up something that is not functioning or operating correctly. Check the computer with a scanner...
Question
Changed battery and the fuel pump and car still slow to start. When it does start it shuts off without warning. Fuel filter is fine.
Hi there. The battery could be dead even though it has a full charge. There could be a dead cell or an over charged cell. Have the battery checked with a load tester. This will place a load on the...
Question
Key isn't stuck in the ignition, but will not turn at all, and I know the battery is dead. Is it the battery or worn key cylinder?
Hi there. Try turning the steering wheel hard and see if the ignition tumbler will unlock. If the tumbler will unlock, then the lock inside the steering column is worn and needs replaced. If the steering will not unlock, then...
Question
Steering wheel is locked up and key won't turn.
Hi there. Try turning the steering wheel back and forth while trying to turn the key in the ignition. There is a steering wheel lock inside the steering column that could be bent or broken if the ignition switch will...
Question
Spark plugs
Installing a spark plug incorrect is most likely caused by the gap of the plug is incorrect or hit when installing it closing the gap. The spark plug may also get cracked when installing the plug. After any of these...
Question
Car won't start
Hello there, many common faults will cause your 2004 Chevrolet Trailblazer to not start. Replacing the battery was a great place to start, as this is usually the cause. Other then the battery many other faults will prevent your vehicle...
Question
Car dies after going 5 to 20 miles. If it sets for 2 to 24 hours it starts again and goes 5 to 20 miles.
Hi there. The issue is with the ignition switch. The switch has a faulty tumbler and disconnects the wiring in the steering column. The best thing to do is replace the ignition switch and check the wiring in the steering...
Question
My check engine light came on so I brought it to Autozone. They told my #5 ignition coil was misfiring, can I still drive it?
The vehicle should be able to be driven for a short period of time without causing further damage since problem is intermittent. You should have a mechanic like one from YourMechanic diagnose the code for the misfire. The code P0305...
Question
In mornings when cold and mostly after a rain car will miss very bad and then clear up
Anytime you are getting a misfire when it is damp and cold the ignition system is going to be the cause most likely. The most common cause will be the ignition spark plug wires arching to ground until the moisture...
Question
I was driving on the highway and I lost power and the car cut off. The car will not start back up and it has gas in it has coming through the gas line.
Hi there. Check the ignition system and see if the spark plugs are sparking. If the spark plugs are not sparking, then check for power to the ignition coil. If there is no power to the ignition coil, then check...
Question
Ignition lock cylinder
The only other way to get the ignition lock cylinder out you would have to drill it out. Then the lock insides can be removed so you can replace the lock cylinder. Make sure to not use over a 1/2...
Question
Hello I just replaced the distributor in my 98 blazer. I set it to 6 o-clock like its suppose to, but it is running really rough.
Hi there. It is possible that the distributor was off by one tooth. This is very common. I suggest removing the distributor, then removing the valve cover to the side that has number 1 cylinder (the valve cover that is...
Question
car completely died going down road now won't start
Hello there, without knowing your make and model I can only provide a very basic answer. Touching the ignition switch wires together to start the car will cause long term damage and can damage the wiring harness. Many common faults...
Question
Will a 2016 lancer auto lock the doors with the key still in the ignition?
Hi there. A new Lancer should not be locking the driver door with the key in the ignition, however that is only when the key is in the ON or ACCESSORY position. When you have the key out of the...

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