Showing articles & questions for topic
ignition system

Related articles

How Long Does an Ignition Relay Last?
When trying to crank a car, you will need a few vital components to be working in order for the process to be successful. On most cars, there is an intricate network...
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 are used in gasoline engines to provide a properly timed, high voltage to the spark plugs. A gasoline engine cannot run on gas and air alone. The...
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.

Related questions

Car is randomly misfiring
There are a number of things that may cause this such as a faulty or dirty mass air flow sensor, a potentially a bad idle air control valve, or dirty fuel injectors. The mass air flow sensor is a unit...
Sometimes my ignition switch won't turn all the way off on my 2006 Impala. What should I do?
Hi there. There are several possibilities for your key not turning fully to the off position. Being an intermittent issue, may make it difficult to diagnose. It could be, as simple as, a worn key. Try another key, don't duplicate...
What can I do to get my car running? It tries to crank and start but it struggles.
If the car is cranking strong with the new starter, and just won't fire up, it's time to re-check the basics. Check for a good spark at the plugs. If spark is good, try spraying a bit of starter fluid...
What is the cost to cut a new ignition key? I live in Lincoln, NE if that matters.
I would suggest calling a locksmith and explain the problem that you have to see if they have the capability to help you out. Unfortunately, I do not think they can but it will not hurt to give them a...
Sometimes my car starts immediately and sometimes it takes between 5 and 10 tries.
Your mechanic's diagnosis and explanation could well be correct. This is classic symptom behavior of a failing ignition switch. The contacts become "burned" over time and over lots of "start" cycles. The repair is to replace the ignition switch. ...
My 1995 Honda Acoord runs in the start position but dies in run position on key switch
Hello. Most of the time, this issue is due to the ignition switch. The lock cylinder will not typically cause this. I usually remove the lock cylinder and make sure it moves freely when it is removed. If it does,...
Fuel pump running with car off
Hello. A fuel pump that stays on when the ignition is turned off can be caused by a few things. If you do not believe that the behavior is normal, then it may be possible that the the ignition switch...
My car turns over but it has no spark and won't start
I would recommend starting with checking the ignition coils for spark as well as the spark plug wires. Oftentimes ignition coils are a problem when it comes to producing a spark, especially on a vehicle of this age. Also, try...
Ignition fuse keeps blowing
You had a good start by tracing the wires and making sure they were clean, dry, and not damaged. To make sure you covered the entire circuit, I recommend you use an official wiring diagram to check this. It is...
I have a 2000 Ford Taurus. A couple weeks ago I was driving and I lost all electrical power to it. Now it will run but very badly.
Hi there. From the description you have given, your vehicle loss of electrical power could be a faulty ignition switch. It could also be, a poor ground pigtail at the negative battery terminal. The combination of inoperative electrical components leads...
Key won't turn in the ignition
While trying to turn the key, try turning the steering wheel in both directions. If that doesn't allow the key to turn - I would recommend having a Steering Wheel Does Not Turn Inspection completed by a mobile, professional mechanic,...
Hello, my car has no spark, no controlled ground for the fuel pump, and no injector pulse. Fuse link close to the battery and relays are good.
Hello and thank you for contacting YourMechanic. The ECU is under your passenger's side seat. You can gain access to it by simply sliding the seat all the way forward and removing the plastic cover from the ECU. You can...
Intermittent throttle failure upon ignition
This may be related to a couple of different things such as a failing idle air control valve or a failing throttle position sensor. The idle air control valve monitors air intake as it is mixed with fuel prior to...
The key won't turn in the ignition
There are several things that may be causing these issues. One place to start is the shift lever. There is a sensor that only allows the vehicle to be started if it is in park or neutral. Try shifting the...
Keys won't turn in ignition
Hi there. From the description you have given, your ignition may have developed some wear over time. Trying another key may correct the problem you are having. If an alternate key does not resolve the problem, then it could be...
My car will not turn over and the car is stuck. The lights and stuff will still come on. It's not the battery.
Hi there. From the description you have given, it's hard to determine whether it is the engine that won't turn or the key won't turn. If it is the engine not turning over. It could be the starter. The part...
Security system is activated and is not letting me turn the car on
Hello there, the security system is an important safety feature with your 2004 Nissan Xterra. You will not be able to disable the security system as it is integrated into the ignition system. Common causes for the security system to...
Key stuck in ignition
Hello there, a key getting stuck in your ignition is a common fault with your 2002 GMC Sonoma. The most common cause would be a worn key, faulty key cylinder, ignition switch, steering wheel lock, or a wiring harness fault....
My car will not start when I turn the key, it just makes a clicking sound. What is wrong?
A starter like any other mechanical and electrical part is subject to failing sometimes for no apparent reason. However, sometimes this is misdiagnosed as well and often times mistaken for something much more simple like a fuse, relay, or starter...
Is there some trick to taking the coil pack off a spark plug?
Hey there. The coil pack is not connected directly to the spark plug. There should be a spark plug wire running from the coil pack to the spark plug with a small 'boot' on the end of the wire that...

Need a mechanic?

Our certified mobile mechanics make house calls in over 700 U.S. cities. Fast, free online quotes for your car repair.

Get a quote

Post a question and get free advice from our certified mechanics.

Ask a question