When you think of your spark plugs, think of a bolt of lightning. A spark plug is responsible for delivering electricity from your vehicle’s ignition system to the combustion chamber (a.k.a. cylinder). Once the electric current gets there, it ignites the compressed fuel/air mixture in your combustion chamber, resulting in a spark that allows you to start your car and keep it moving. Sometimes people ask if they should fix spark plugs, but spark plug repair is often not cost- effective, and replacement is usually recommended, since they are usually inexpensive.
You can find your spark plugs near the top of your engine block. Depending on the type of vehicle you have, you may have to remove the ignition coil in order to access each spark plug. You may have come to this page to see if your spark plugs need to be repaired, but it is almost always more cost effective to have them replaced.
#1 – You notice a rough idle in your engine.
If your spark plugs are going bad, you may notice a rough or shaky sound with vibrations when you start your car.
#2 – You experience difficulty when starting your car.
Often, people make the mistake of assuming that their car won’t start because the battery is dead. Not true! Another possibility may be due to bad or worn out spark plugs. Remember, spark plugs will need to be replaced over time. If your spark plugs aren’t producing the spark that is needed to start your car, then your vehicle won’t start.
#3 – You see an increase in fuel consumption.
As spark plugs deteriorate, it can cause your fuel economy to decrease by as much as thirty percent! Have one of our certified auto technicians take a look at your spark plugs. If your spark plugs are the culprit – once you get them replaced, you’ll be good to go!
#4 – Your vehicle feels sluggish when accelerating.
If it feels like you’re pressing your gas pedal to the floor but your vehicle isn’t responding as it should, it could be because you need to replace spark plugs that are worn out.
#5 – You experience engine misfires.
If you notice that your engine is misfiring and your vehicle isn’t running as smoothly, it could be because one or more of your cylinders isn’t firing properly. Your spark plugs could be to blame.
Bring your vehicle in if you’re experience any of the above issues, and we’ll gladly take a look! Give us a call today at (919) 231-8777, or fill out our free, simple online form.
Q: How frequently do your spark plugs need to be changed?
A: It depends on the type of spark plugs you have. Standard copper spark plugs are estimated to last anywhere from 10k – 20k miles. More expensive types of spark plugs (made of iridium or platinum) are estimated to last 60k miles or longer.
Q: What is the average cost to replace spark plugs?
A: The national average cost for replacing spark plugs is between $130 – $170. We recommend contacting us for a FREE estimate as prices may vary according to the type of spark plugs you have as well as the type of vehicle.
Q: How many spark plugs are in a car?
A: It depends on how many cylinders your vehicle has. For example, a 4 cylinder vehicle may have 4 spark plugs while a 6 cylinder vehicle may have up to 6 spark plugs.
Q: Should I repair my spark plugs?
A: In some cases, spark plug repair may be an option, but the majority of the time they are cheaper to replace.
Also See Frequently Asked Questions
While a handy person may replace or repair spark plugs, we recommend that you should only allow a reputable auto technician to inspect and replace or repair your spark plugs. Doing so may prevent more costly repairs down the road.
At USA Automotive, our auto technicians are certified experts in spark plug replacement and repair.
If you notice any of the above signs of trouble, contact us immediately. Our shop is a leader in spark plug replacement in Raleigh, NC. Our team has the tools, equipment, and expertise to replace your spark plugs and get you back on the road.
Call us at: (919) 231-8777, or fill out our simple, online form.
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