Showing articles & questions for topic
Spark Plugs

Related articles

Symptoms of Bad or Failing Spark Plugs
Common signs of faulty spark plugs include slow acceleration, loss of power, poor fuel economy, engine misfires, and difficulty starting the car.
How to Change Your Spark Plugs
Tune-ups have changed a lot over the years. Your grandpa’s car had a distributor with points that required periodic replacement. Thankfully, computers have taken control in modern cars, eliminating the...
How Long Does an Ignition Cable (Spark plug wires) Last?
The ignition of a car is an essential part of a good running engine. Each time that you turn the key of your car over to crank it, the ignition wires will...
How to Find Top Dead Center
There are many reasons why you might need to find an engine’s top dead center. Top dead center is the point when the piston of the number one cylinder in an...
How Long Do Spark Plugs Last?
In order to operate, your engine needs fuel and air. However, those two things alone won’t make it run. It needs a way to ignite the fuel after mixing it with air...
How to Buy Good Quality Spark Plugs
Sparks make everything happen! Without spark plugs, your vehicle would never be able to kick off combustion, providing the necessary power to make your car go forward. If your engine is starting...
What Causes a Car to Backfire?
You’ve got an image of it in your head right now. An old car drives off jerkily from a stop sign, tires screeching as it lurches and bucks, with shotgun bangs coming from the...
How to Gap a Spark Plug
The spark plug is used to ignite the air/fuel mixture inside the engine. The spark plug must be in good condition and must be properly gapped for proper engine...
How to Check Spark Plug Wires
Car engines that have a distributor or remote coil pack have spark plug wires that transfer the spark from the coil to the spark plug.
How to Read Your Spark Plugs
Car spark plugs create the spark necessary in the combustion cycle. Check your spark plugs to improve your engine efficiency and performance.
What Does a Spark Plug Do?
Your ignition system is pretty complex, and there are a number of important components that must work with one another to crank the engine and then keep it running. Your spark plugs are...
What Does Ignition Timing Mean?
Timing – it has a couple of different meanings when applied to your car’s engine. One of the most critical is ignition timing (not to be confused with engine timing). Ignition timing refers...
How to Buy a Good Quality Ignition Cable (Spark Plug Wires)
Spark plug wires connect the spark plug to what they’re creating a spark in. Whenever you are changing out your spark plugs, it’s a good idea to check on those spark plug wires to...

Related questions

Question
Can you help? My car stopped starting.
Hi there. Check the spark plugs and wires to see if the engine is getting any spark to the cylinders. If there is no spark and the spark plugs are white in color, then I recommend replacing the spark plugs...
Question
hi hows it going, quick question. i removed the 4th sparkplug cable while my car was idling, now my car wont start. any idea what
Hello, thank you for writing in. The vehicle may be having issues with fuel or spark. You will want to turn the key to the "On" position and listen for the fuel pump to prime. If you know it is...
Question
f250 5.4 v8 automatic 4x4. It spit a spark plug in a cylinder and still runs just misses. Shop is asking 4500. What damage can it cause and how much to fix it?
If the spark plug is spitting out, then the threads in the cylinder head or on the spark plug have been stripped out. Check the spark plug if you still have it and see if its stripped. If the plug...
Question
Why does my #1 spark plug continue to burn up in my 2008 Ford F-150
Hello. If you continue to have the spark plug end burn up on just that cylinder then there is an issue with the mixture in that cylinder. It can be caused by a compression problem, carbon build up, or it...
Question
Sputters on start and high idle. Also sputters on acceleration.
Check the spark plugs and wires as they are not working properly. The spark plugs are not burning the fuel or the fuel injectors are leaking. A leaking fuel injector or failed spark plug or wire will cause the engine...
Question
Car won't start
Hi there. Check the three essentials that an engine needs to run. Air, Fuel, and Spark. If you have fuel and the fuel pump is working, then check the air filter and see if its plugged up. If the air...
Question
I'm getting power to distributor coil, but I'm not getting power to the spark plugs.
Hi there. Check the spark plugs with a spark adapter tool to see if there is a park induced from the coil. If there is no spark, then the spark plug wires could be burned and need replaced. If the...
Question
Engine cut while driving, now dont crank.Cant turn it with hand.
Of course, first confirm that the plugs are correct for the engine. The wrong plugs, and/or missing crush washers, can cause interference with the piston. If the plugs are correct, the cause of the mechanical interference can sometimes only be...
Question
Engine won't start and there is no fire to the plugs.
After installing the steering column there may be some electrical wiring not hooked up or pinched. Check all the wiring on the steering column to the ignition system and see if the wires are not hooked up or pinched off....
Question
Truck won't start.
Since the fuel pump was replaced, check to see if there is fuel pressure to the fuel injectors. If there is good fuel pressure, then check for spark on the spark plugs. You will have to put on a spark...
Question
Boots on spark plug wires keep melting 1995 Chevrolet S10
Hi there - this is a problem with this engine, and the stock exhaust manifolds come with heat shields to help prevent the burned plug wire problem. Perhaps your heat shields have been removed? Or, if you're running headers, using...
Question
Melting spark plug wire boots
If you have had to replace spark plug wires due to melting them then you need to use a stethoscope to check around the burned plug wires to see if there is exhaust leaks from the manifold gaskets and replace...
Question
I been having problems with my car, a couple of days ago its would not start.... The dipstick was creamy, I checked my coils, 2004 Nissan Altima
Hello - to be sure, a leaking valve cover gasket that is allowing oil to leak onto the plugs, plug boots or coils, will cause misfire issues, and uncertain engine starting performance. I recommend a car is not starting inspection...
Question
Tries to run but won't get over 400 rpm before dying.
Hi there. Check for the three essentials that the engine needs to run, fuel, spark, and air. If you are having fuel and the pressure is 30 psi or higher, then check for spark on the spark plugs and wires....
Question
Can you put spark plugs and fuel injectors from a 1998 4.6L Expedition into a 2001 4.6L Expedition? (an auto parts store associate told me I could)
The spark plugs will not make any difference with the engine performance, however, the fuel injectors are different and will cause the computer to not operate the injectors properly. This is why the engine light came on with all of...
Question
How do I fix my hydro-locked car?
An engine is a large air pump. It is best to remove the spark plugs and crank the engine over with the ignition and fuel system disabled. This will blow out all of the water from the engine. This will...
Question
I got a diagnosis for a 2012 X6 saying the combustion misfires due to faulty ignition coil and I've gotten a recommendation to rep
Hello, and thank you for writing in. Getting a second opinion is always a good idea. Replacing the spark plugs is a very necessary part of maintenance that is often overlooked. It is never a bad idea to replace your...
Question
Oil coming out of spark plug.
Hello. The piece you are referring to is called a valve cover gasket. It sits between the top of the engine as if a piece of cheese would between a bun and a patty to keep the oil from leaking....
Question
At what mileage should your plugs be changed ? 2008 Cadillac STS
Hi there - first step is to check the problem codes causing your Check Engine light to come on and go back off. Most auto parts stores will do this for you for free on a "time-available" basis. If you...

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