Set the parking brakes, park your Hyundai in a secure location, and let the engine cool.
Closed Hood Open the hood next. Clean the region around the ignition coils and the vicinity of the spark plugs.
- Negative battery terminal disconnected. It is safe to unplug the negative battery terminal as you will be dealing with the electrical system.
- Engine cover removal. Up to four 10mm bolts, which are accessible from the top of the engine, are used to secure it in place. Open up the engine cover if there are no bolts on the top.
Eliminate the ignition coils. The ignition coils should then be disconnected after removing the engine cover. By depressing the locking tab and drawing the connector away, you can unplug the ignition coil connector.
- To remove the bolt holding the coil in place, use a 10 mm socket. This car has a coil-on-plug layout. Therefore, each spark plug will have one coil. Pull the ignition coils out after removing the bolt and connector. If the ignition coil still won’t rise, try raising it up and out after a slight twist.
Delete the spark plug. Before removing the spark plugs, blow debris out of the recess.
- To remove the spark plugs from the engine, use the spark plug removal tool, ratchet, and 3/8″ extension. To take out the spark plug, turn counterclockwise. A magnetic pickup tool may be required to remove the spark plug.
Replace the spark plugs. Installing the new spark plug is now necessary. Using a spark plug gapping tool to check the gap is a recommended practice. While some spark plugs, like copper plugs, might be pre-gapped, others might not.
- The electrical connector should be attached to each ignition coil after installation. Put the engine cover back on.
- Remove all of the engine’s tools.
- Start the car’s engine and give it a test drive.
Use an OBD-II scanner to erase any codes if a faulty spark plug or ignition coil caused the check engine light to come on.
In This Article...
Service for Spark Plug Replacement
Hyundai Elantra Spark Plug Replacement typically costs $113, which includes $18 for parts and $95 for labor. Prices may change based on where you are.
When must my Hyundai Elantra’s spark plugs be changed?
30,000 miles every Your Elantra’s spark plugs need to be replaced at about 95,000 miles, and you might want to consider replacing the coolant at 120,000 miles.
How much does a Hyundai Elantra spark plug cost?
Hyundai Elantra spark plug replacements typically cost between $139 and $172. While parts are priced between $67 and $82, labor costs are expected to be between $71 and $90.
Can I replace my own spark plugs?
For a four-cylinder engine, changing spark plugs takes approximately an hour, and you can do it yourself and save at least $100 in labor costs. Most of the time, it’s a straightforward task that will help to maintain optimum performance and the best gas mileage.
What else needs to be replaced when I replace the spark plugs?
How much does it cost to replace the coil and ignition wires? The engine of the car you drive is what makes the difference. However, it’s crucial to perform a complete inspection of the ignition system, including the spark plugs, before you replace the ignition wires, coils, or coil pack in your automobile or truck. It becomes considerably more challenging to deliver a good spark from the distributor or coil pack once your ignition wires begin to wear out. It becomes significantly more challenging for the electricity to transfer from its source to the cylinder where combustion takes place as the materials in the plug wires start to deteriorate or break down. The engine will typically misfire, causing a skip, or your car may not start.
The spark that ignites the mixture of air and fuel in your engine’s combustion chamber is transmitted to the plugs by spark plug wires from the distributor or ignition coil. The ignition coil, which converts low-voltage power into extremely high voltage, is where this process begins. The transmission of this energy through the ignition wires generates heat, which over time may cause the wiring to weaken, crack, or otherwise fail. Fuel won’t ignite in your engine’s cylinder if the spark is weak or nonexistent. Your automobile or truck will either operate poorly or not at all, depending on how many spark plugs have failed. Asking the service personnel to check your ignition system everytime you have maintenance is a good idea because of this.
The ignition wires and coils in your car are at the mercy of time and mileage. Replace the ignition wires whenever you change the spark plugs, and vice versa. By doing this, you’ll maintain your car operating at its best and save money on unburned fuel. In fact, a sudden decrease in gas mileage can be a sign that something is wrong with your ignition system. You can quickly check the voltage reaching the spark plugs with an Ohmmeter. It is crucial to have someone check the codes if your car’s “Check Engine” light is on to establish whether the problem is with the ignition.
How can spark plugs be checked without removing them?
- affix an ignition wire tester to the spark plug. The tester’s other end is connected to the spark plug that is currently installed in your engine.
- Activate the ignition.
- Watch the transparent sides of the tester while you start the engine or, if it won’t, simply flip it over. You can be certain that there isn’t a spark at the crucial spark plug tip if there isn’t a visible spark or glow. Does this indicate a defective plug? No, not always. Yes, a faulty spark plug is a possibility, but an ignition system malfunction could also be to blame for a lack of spark.
How much does it cost to replace a spark plug?
My Honda’s engine need new spark plugs. I won’t be able to accomplish this alone; I am not even remotely handy. What is the price of replacing spark plugs?
In less than two minutes, find out if your auto insurance is being overcharged.
We appreciate that you are putting your car’s health first. In general, a mechanic will charge between $115 and $200 to replace a spark plug.
With spark plugs, the price of parts is low.
Depending on the type required, plugs might cost anywhere from $5 to $20 each. You will need between four and eight plugs because you need one plug for each cylinder in your engine.
Labor time makes up the remaining expense. Expect to pay for one to two hours of labor even though this is not a particularly laborious procedure.
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Should I unplug my battery before changing the spark plugs?
When trying to replace the spark plugs in their car, this is a common query that individuals have. The battery does not need to be disconnected in order to replace the spark plugs, is the response. You may just detach the spark plug from the engine and then remove the spark plug wire from it.
Additionally, when working on anything electrical, it’s crucial to disconnect the negative connection of your automobile battery. Any mishaps will be less likely as a result. Before changing your spark plugs, make sure the engine of your automobile has completely cooled. By doing this, it will be simpler to remove the plugs and the ignition coil boot or spark plug wire.
If your spark plugs are damaged, can you still drive your car?
It’s always advisable to adhere to the manufacturer-recommended maintenance schedule when it comes to car maintenance. To determine when to change your spark plugs, check the advised maintenance schedule for your car.
Fortunately, spark plugs don’t deteriorate rapidly. They normally last 80,000 miles before needing to be replaced. However, if you experience any of these signs, it’s time to get an engine tune-up and have your spark plugs examined.
Don’t put it off; driving on worn-out or damaged spark plugs might eventually lead to engine damage. Make an appointment now for a thorough inspection from one of our highly skilled technicians at your neighborhood Firestone Complete Auto Care!
What is the most effective tool for removing spark plugs?
Just a few tools are required to replace the spark plugs in your car. The most crucial equipment is a spark plug socket and an extension for a socket wrench. There are two sizes available for spark plug sockets: 5/8 inches and 13/16 inches. The rubber insert included in most spark plug sockets keeps the plug firmly in place.
If it’s tough to get to your spark plugs, you could also require a universal joint. The wrench can be turned in one axis and converted into a rotation around another axis using universal joints, which are articulated joints. A universal joint might be useful if you can’t fit a wrench and extension in the area surrounding your spark plugs.
It’s crucial to avoid overtightening the spark plugs when changing them. The threads in the cylinder head or the spark plug may be harmed if it is overtightened. Make sure you don’t overtighten your plugs by using a torque wrench. The torque you apply when twisting a torque wrench is indicated via a gauge on the tool.
While the majority of contemporary spark plugs are pre-gapped from the factory, having a gapping tool on hand is a smart idea. Using a gapping tool, you can check if the gap between the ground electrode above the spark plug’s center electrode is the appropriate size. The spark on your spark plug ignites here.
A pair of boot pliers, a length of rubber tube, a clean rag, some rubbing alcohol, a tube of anti-seize, compressed air, or a wet/dry vacuum may also be useful to have on hand. Although not necessary for a straightforward spark plug replacement task, these supplies can make sure that everything goes according to plan.
Should every spark plug be changed at once?
Should All Spark Plugs Be Replaced At Once? A: In order to achieve uniform performance levels, it is generally preferable to replace all plugs at once.
Should I switch to spark plugs instead of ignition coils?
Spark plugs and ignition coils work in tandem. The other cannot work correctly if either one fails. So, should spark plugs be used in place of coil packs? It varies.
The spark plugs are the part that needs to be changed the most frequently along with the ignition coils. Coils can be overworked by worn spark plugs, and the effort needed to replace both parts is frequently overlapped. It is advisable to repair both parts at once if your worn-out spark plugs caused your ignition coils to fail.
However, unless there are indications that they are malfunctioning, replacing your ignition coils at the same time that you replace your spark plugs as part of routine maintenance is not necessary.
It is advised to replace the wires in ignition/spark plug systems if they look to be brittle, worn, or broken. If moisture (such as an oil leak) has harmed the ignition coils, the moisture source should also be fixed in order to prevent the problem from reappearing too soon.
The moment you notice a problem with your ignition coil, call a professional. Should I replace my ignition coils with spark plugs? is one of the first queries you should put to your expert. Have your mechanic check your car to see whether the ignition coils and spark plugs need to be replaced.