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ignition system

Related articles

How to Troubleshoot a Car That Won't Turn Off
If your car won't turn off, inspect the power relay, idle speed, ignition timing, and spark plugs. Using premium fuel may help but isn't a solution.
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 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
Cuts out while driving
Any time a vehicle cuts out while driving then it will have set failure codes in the computer. If you have the codes then please supply them the next time you have problems. This helps us to come up with...
Question
Cranks, will start if check engine light goes off. If light stays on, no start
If you have the ignition switch out of the vehicle then you may be getting a switch that is not making good contact internally. I would first recommend replacing the ignition switch and checking connector for any problems in the...
Question
My car wont start.
Hello. We will be happy to assist you. It sounds like you have a common failure, a faulty ignition switch or lock cylinder. Both the ignition switch and lock cylinder have four positions, Off, On, Accessory, and Start. Each position...
Question
Would a click, click sound (battery 100% charged) mean a bad starter solenoid, or bad alternator?
Hello. We will be happy to assist you. The issue your vehicle is having may be caused by faulty wiring such as corroded battery to starter wiring or a loose battery terminal. The most likely causes are a bad starter...
Question
Can't get high revs from engine. Seems choked
Depending on the HEI system you have you may have a weak coil or the carburetor is running out of fuel at the higher rpms. Use a spark tester to see if the coil is capable of sustaining the spark...
Question
hard starting
If manipulating the ignition key (switch) leads to eventual success in starting the car the first possibility to check is a defective ignition switch. The contacts in the switch do wear over time and thus you could have a situation...
Question
Anti-theft ignition issue (won't start) 2008 Ford Escape
Hi - Ford ignition switches of this vintage have a chronic problem of failing in this manner. The "center button" connection between the key tumbler and ignition switch wears, and the ignition switch is not moved adequately to complete the...
Question
My car starts in the morning with a sputter.
The noise could be either an ignition coil misfiring and causing the engine to stall on a cylinder making the engine sputter or the engine is sputtering with an injector that is sticking until it get hot as it maybe...
Question
Ignition fuse keeps blowing, all back lights don't work, gauges messed up, can't shift out of park when engine is on.
The ignition switch is damaged and needs replaced. The contacts inside the ignition switch is are shorting out with itself. This is why the switch has to be in a specific position to release the shift interlock solenoid. If you...
Question
2004 Ford Ranger doesn't turn off when key is removed
The problem is likely a bad ignition switch. The ignition switch routes power to the entire vehicle including the accessories, computers, fuel and ignition system. Basically, the failed switch is allowing the vehicle to stay on. A professional, such as...
Question
What could be thr problem if the truck wont crank but lights and radio on without the key been in the ignition
The key tumbler switch outside handle has broken loose from the inside tumbler and will need to be replaced.
Question
On occasion my car won't start and all the dashboard lights light up, but the dome light and headlights light up.
When it comes to a starter solenoid failing, the battery power from the starter solenoid will back travel to the ignition switch causing all kinds of problems. Replacing the starter will cure all or most of the issues. If the...
Question
2004 Chevrolet Impala SS Security Light
Either the key fob remote's battery is going out causing the immobilizer system to trip the security or the immobilizer system control is not responding. I recommend replacing the battery in the key fob remote and programming the remote to...
Question
How do you know if the ignition needs to be replaced when you replace the plugs on dodge 5.7 hemi?
Hi there. To determine if the ignition coils need to be replaced, remove one park plug wire at a time and hook it up to a spark tester gauge and set the gauge to 10 thousands gap and increase it...
Question
Jeep won't turn over after sitting for 8 hours 2001 Jeep Cherokee
Hello - I would first check the battery cables and ground straps for corrosion, or other poor-connectivity problems. A strong battery can be hampered by poor connections, which will sometimes finally pass current. A failing starter solenoid (burned contacts) will...
Question
My 97 yukon turns over but doesn't start I took the fuel pump it's not that
You will need to have the computer scanned to see if you are getting a crankshaft and camshaft sensor signal and giving the ignition spark. If not then replace the sensor that is not giving the signal so your engine...
Question
Wheel is free but the key won't turn
You should try a different key if you have a spare one to try. If the spare key turns the ignition now then the original key is worn and needs replaced.If you do not have an extra key then look...
Question
Can you put a Mazda ignition switch in a Honda
Hi there. Switching the ignition switch depends on the year of the vehicle. Older Honda's and Mazda's could swap out the ignition switch together, but the newer vehicles cannot as they are coded for each vehicle by VIN number. If...
Question
1970 chevy silverado cranks but will not turn over
With this ignition system you most likely have issues with the ignition coil or the ignition module. Before this you will need to check to make sure the ignition cap and rotor are not burnt and need to be replaced...
Question
2000 escalade will not lock with the key in the ignition, it only chimes and doesn't engage lock.
Hi there. If the driver door is not locking with the door ajar and the key in the ignition, that is normal. If all of the doors are not engaging the locks with the key in the ignition and the...

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