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Spark plugs are an essential component of your vehicle’s upkeep. A little repair may make your journey feel much smoother. There is no cause why you should not replace a spark plug.
Every engine requires a spark plug to function correctly. A spark plug provides electricity to the fuel mixture, which causes an explosion that generates more power for your car’s engine. These plugs are tiny but powerful to make your vehicle go as smoothly as possible.
Spark plugs are necessary for every engine. Choosing the finest spark plug for a turbo engine rider is more than just a priority. It’s due to heat endorsement rather than a regular engine.
2015 2016 2017 2018 2019 2020 Acura TLX Spark Plugs
|Info/Engine||2.4L 4-cyl Engine K24W7||3.5L 6-cyl Engine J35Y6|
|OEM spark plug gap||0.044″ (1.11mm)||0.044″ (1.11mm)|
|Best spark plug||NGK 96964 DILKAR7H11GS Laser Iridium Spark Plug||NGK 95350 DILZKR7B11G Laser Iridium Spark Plug|
|Popular choice||NGK 93501 LKAR7BIX-11S Iridium IX Spark Plug||NGK 93175 LKR7DIX-11S Iridium IX Spark Plug|
2021 2022 Acura TLX Spark Plugs
|Info/Engine||2.0L 4-cyl Engine K20C6 Turbo||3.0L 6-cyl Engine J30AC Turbo|
|OEM spark plug gap|
|Best spark plug||NGK 93175 LKR7DIX-11S Iridium IX Spark Plug|
|Popular choice||Autolite APP5325-4PK Double Platinum Spark Plug|
Every gasoline engine contains four spark plugs on each cylinder head, one for each pair of cylinders. Each spark plug fires to ignite the compressed fuel and air mixture in a cylinder. The electrical spark isn’t launched into the combustion chamber; instead, it travels over a little distance (usually about a millimeter) through a tiny gap to start it.
The power generated by this little explosion is directed through the piston and converted to rotational energy. The spark plugs repeat the process repeatedly, with one spark plug per cylinder in most cases but two in some instances. Your Acura won’t start or run without spark plugs.
The inside of an automobile engine is far from pleasant. While contemporary engines are designed and constructed to reduce friction between moving components, friction – and the heat that goes with it – is unavoidable as cylinders turn. Every minute, spark plugs fire 1000 times or more. Wear and tear are very serious concerns.
Regardless of how efficient an engine is, a tiny piece of material is emitted after every combustion. Over time, deposits build up on the spark plugs, causing erratic performance and even lower gas mileage. Furthermore, as the heat, particles, and ordinary wear and tear increase the gap that a spark must travel to ignite the fuel/air mixture as it ages, so does the gap between sparks over time.
That is why it is critical to have your spark plugs inspected and replaced as recommended by the manufacturer. Superior materials might have extended the average spark plug’s lifespan, but they certainly won’t last indefinitely.
4 pc DENSO Spark Plugs for 2015-2017 Acura TLX 2.4L L4
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2015 Acura TLX Engine Tune-Ups & Maintenance
Tune Into Your Acura TLX
Is it time for an engine tune-up? If you tend to ignore your car until something goes wrong, it might be time to change your ways, especially if you want your 2015 Acura TLX’s engine to last for a long time. Periodic tune-ups can bring more power back to your TLX’s engine. Tune-ups help your engine start smoothly and run efficiently, which can mean better fuel economy (a win for you) and lower emissions (a win for the environment). When you follow the guidelines specified by Acura for your vehicle’s tune-up schedule, you can rest assured you’re investing in your TLX’s long-term engine performance.
Engine Tune-Up for Acura TLX
The Firestone Complete Auto Care location in your community offers several Acura TLX engine tune-up services. The first is the standard Firestone Tune-Up. It includes a complete visual inspection of engine components, installation of new spark plugs, and a lifetime warranty on parts*. Another service option pays special attention to the filters in your TLX. Specifically, we replace the fuel filter and air filter. Yet another service is a fuel system cleaning process, which involves removing varnish, dirt, and carbon deposits that have built up inside the fuel injectors, throttle body, and throttle plate in your TLX. This can improve your fuel system’s performance (and therefore, your engine’s performance). Keep in mind that your TLX's mileage and maintenance history can uniquely impact its tune-up needs. A one-size-fits-all engine tune-up procedure doesn’t necessarily exist. Ask one of our technicians what your vehicle needs, based on your driving habits and your car’s current condition.
Where to Get a Tune-Up for Your Acura TLX
Come to Firestone Complete Auto Care for your next 2015 TLX engine tune-up. Follow Acura's recommended maintenance schedule or book an appointment as soon as you notice one of the following: stalling or shaky idling when you’re stopped, diminished fuel economy, an illuminated check engine light on your dashboard, or a knocking sound when the engine is running.
*Talk to a Firestone Complete Auto Care teammate for full terms and conditions on warranties.
2015 Acura TLX Engine Tune-Up Q&A
What happens if my Acura TLX spark plugs fail? When it’s time to replace the spark plugs, don’t delay. These small (but vital!) parts provide the electric spark that your car needs in order to start, and old spark plugs can prevent your car from starting at all. Replace spark plugs on time or about every 30,000 miles or so.
What do I do if I see a pool of liquid under my Acura TLX? Puddles could indicate an oil leak, coolant leak, or brake fluid leak– all of which can critically hurt your engine. Have your engine inspected as soon as you spot a pool of liquid in your usual parking spot.
Are hard starts and stops bad for my Acura TLX engine? Hard stops and starts can lead to premature wear on your engine’s components. Lighten up that lead foot and opt for steady, fluid starts and stops instead. Your engine (and your passengers!) will thank you.
Maintenance for Your 2015 Acura TLX
We know it’s not just a car, it’s your car. We’ll help you properly maintain your Acura TLX to keep it on the road and running smoothly. Learn more about maintenance below.
Repairs on Your 2015 Acura TLX
Nothing lasts forever. Even your Acura TLX's many parts and pieces. When something breaks, we're ready. Click on a repair below to learn more about 2015 Acura TLX repairs.
Bad spark plugs can cause many problems with your Acura TLX. Bad spark plug symptoms may be subtle, or incredibly noticeable.
The basic design and task of the spark plug has changed little over the last 100 years. They sit on top of the combustion chamber and ignite the air/fuel mixture and start the power stroke of the engine.
Something that has changed about modern spark plugs is that many of them use iridium, don’t need gapped, and can last for 100k miles with little issue. That being said, they still can go bad. The good news is, that if you do need replace them all, they are very affordable.
Common Bad Spark Plug Symptoms: Acura TLX
There are a lot of potential symptoms related to bad spark plugs in your TLX. We always recommend using an OBDII scanner to pull your trouble codes if you have a check ending light on. It can really narrow your search down. If you don’t have one, your local parts store will do this for you for free.
It is also worth noting, that the symptoms of bad spark plugs will be almost the same as any other bad part in the ignition process. This means that something such as bad coil packs will produce the same results and feel as bad plugs.
Check Engine Light
The check engine light is one of the most common symptoms of bad spark plugs. More often than not, your engines computer will be able to detect bad spark plugs in your TLX.
There are several misfire related trouble codes.
- P0300– this trouble code indicates that there is a random misfire. A random misfire means is that a misfire is detected, but the ECM is not able to determine which one it is coming from, or the misfire is occurring randomly.
- P0301 through P0312- these trouble codes indicate that there is a misfire in one specific cylinder. For example, P0304 is for a misfire in cylinder 4 in the firing order. This makes diagnosing the misfire a bit more straightforward.
There are other misfire related codes as well.
Accelerates Slower than Normal
As you ask your TLX for more power, the fuel and ignition systems respond. If acceleration has diminished, it should be felt. The less cylinders that your engine has, the more that one cylinder not firing properly will have. If you have one or more bad spark plugs, it’ll cause the acceleration of the TLX to be weaker.
The less efficient the combustion of your engine, the more fuel is going to be wasted. This leads to a decrease in fuel economy. When you take your vehicle in for a tune up due to decreased fuel economy, checking the spark plugs (and ignition system in general) is going to be one of the very first places that a mechanic is going to look at.
Misfiring is the most common symptom of bad spark plugs. All of the other symptoms are a result of the misfiring itself. The real question is, what is causing the misfire? There is more to your TLX’s ignition system than just the plugs. There’s also coil packs and spark plug wires.
There are also non ignition related circumstances that can cause a misfire. That would include lack of fuel pressure, bad fuel injectors, or even a timing chain (or belt) that has jumped. Since there are so many reasons that a vehicle can misfire, we recommend testing for trouble codes first.
Here’s a good video from YouTube on identifying a bad spark plug.
When a spark plug is misfiring, it is often most pronounced at idle speed. This is because when the engine turns slower, it is easier to detect. You’ll feel a rough vibration.
Conclusion: Bad Spark Plugs Acura TLX
Be aware that almost all symptoms of a bad spark plug in your TLX could also be other issues with the ignition system as well. Good luck diagnosing the problem Feel free to leave a comment below if there is anything that you would like to add.
Tlx 2015 spark plugs acura
5 DIY Maintenance Tips
We love our vehicles. We like to accessorize, customize, detail and polish them. To truly show the love, some of us even like to do minor maintenance tasks to keep our vehicles in tip-top shape.
If you're looking to spend a little quality time with your vehicle this weekend, here are five DIY car maintenance projects to keep you busy!
1. Windshield Wipers
Windshield wipers should be replaced about every six months, but many drivers let them go far too long to avoid an even more expensive repair later down the road. The good news is that you'll only need about 15 minutes to do this on your own with no tools at all. You can find the wipers you'll need in your owner's manual. Our Parts Center will get you the wipers you need.
Keep in mind that you are likely to use your windshield wipers more during certain parts of the year, like fall and winter, so plan your replacement schedule accordingly.
2. Air Filter
Your car's air filter is what keeps dirt and other unwanted particles from getting into the engine while it's running. A dirty filter can hurt both your gas mileage and engine performance. Replacing an air filter is about as simple and easy as it gets. It's as simple as reading a page in your owner's manual to find the correct section, taking the lid off the box, switching out filters, and putting the lid back on.
You should replace your air filter once a year or every 12,000 miles. Filters are usually cheap, depending on your vehicle, and this task can also be completed with no tools at all. Be wary though, as cabin air filters can be more complex than this, and are best left to a professional.
3. Battery Maintenance
There is something about electricity and its potential for serious harm that keeps car owners at a safe distance from their batteries. Never fear! As long as you disconnect the battery properly (negative node first!) you'll be fine.
Maintaining a strong battery connection is important to keep your car running smoothly throughout daily wear and tear. A battery is one of the driving forces behind your vehicle. A simple visual inspection will tell you if it's time to clean your battery. The crunchy white residue that builds over time will keep your car from starting properly and, reduce the life of your battery and other starting components.
For this task, you'll need a few items: a rag, some wire brushes, wrenches to loosen connectors, and corrosion removal fluid. Some say you can substitute Coca-Cola here. You could, but we wouldn't recommend it.
The cleaning process shouldn't take longer than 20 minutes and, assuming you have a wrench and wire brush lying around, investment in tools will be minimal.
4. Oil and Oil Filter
Performing your own oil changes is perhaps one of the dirtier and more involved DIY tasks. However, doing so, will give you peace of mind and help you to get better acquainted with the machine you use.
Convention would have you change your oil every three months or 3,000 miles, but the fact is that today we have higher quality oil and more efficient engines. Most cars even have oil quality meters, but you can always double-check by eyeing the quality on the dipstick. You might even be able to get up to 5,000 miles out of a single oil change.
You'll need to buy some oil (check your owner's manual for specs, and speak with one of our Service Specialists to find out which is best for your needs), as well as a ratchet, oil filter wrench, oil pan, and funnel. The whole process takes about 30-45 minutes.
Before you start: Make sure your car is cool. Hot oil will burn, and most likely melt through your plastic oil pan, creating a mess that is nearly impossible to clean completely.
5. Spark Plugs
Replacing your own spark plugs can save you a lot of money. It takes some patience, but it's a pretty simple task.
You'll need a spark plug for every cylinder your car has (4, 6, or 8) and they should be replaced about every 30,000 miles. The proper gap size for the plug can be found in your owner's manual. Just bring this number to our Parts Center and they should have you in and out in no time.
Note: Do not to unhook all the spark plugs at once – they have to be done one at a time.
Tools involved include a ratchet, 12-inch socket arm, and spark plug socket (this is deeper than the typical socket). The fix should take 20 to 30 minutes and the spark plugs are relatively inexpensive. Always buy your parts from a reputable dealer to make sure are getting the best for you investment.
Performing basic maintenance will give you a better relationship with your car and can be a great hobby. It's easy to forget that you are operating a piece of heavy machinery on a daily basis. By understanding more about how your car operates, you will be more apt to know when something is failing or if more significant repair is required. Of course, if a task is too involved don't hesitate to give us a visit and we'll be more than happy to help!
Included for free with this service
12-month / 12k-mile warranty
Free 50 point safety inspection
Our certified mobile mechanics can come to your home or office 7 days a week between 7 AM and 9 PM.
Spark Plug Replacement Service
How much does a Spark Plug Replacement cost?
On average, the cost for a Acura TLX Spark Plug Replacement is $201 with $106 for parts and $95 for labor. Prices may vary depending on your location.
|2015 Acura TLXL4-2.4L||Service typeSpark Plug Replacement||Estimate$451.07||Shop/Dealer Price$552.59 - $817.78|
|2016 Acura TLXV6-3.5L||Service typeSpark Plug Replacement||Estimate$459.93||Shop/Dealer Price$568.08 - $849.12|
|2019 Acura TLXV6-3.5L||Service typeSpark Plug Replacement||Estimate$413.59||Shop/Dealer Price$503.26 - $749.72|
|2016 Acura TLXL4-2.4L||Service typeSpark Plug Replacement||Estimate$307.39||Shop/Dealer Price$377.98 - $550.40|
|2018 Acura TLXL4-2.4L||Service typeSpark Plug Replacement||Estimate$510.82||Shop/Dealer Price$613.84 - $882.27|
|2017 Acura TLXV6-3.5L||Service typeSpark Plug Replacement||Estimate$459.93||Shop/Dealer Price$559.81 - $834.65|
|2018 Acura TLXV6-3.5L||Service typeSpark Plug Replacement||Estimate$743.88||Shop/Dealer Price$902.64 - $1338.91|
|2017 Acura TLXL4-2.4L||Service typeSpark Plug Replacement||Estimate$312.39||Shop/Dealer Price$375.74 - $542.74|
Show example Acura TLX Spark Plug Replacement prices
What are spark plugs and how do they work?
Spark plugs are one of the key components of your vehicle’s ignition system. They ignite gasoline and air inside of your engine. This gives your engine the power to propel you down the road. The spark plug takes high voltage electricity from the ignition coil and creates a spark at just right moment during the engine’s combustion cycle. This gives the engine the best mix of power, fuel economy and low emissions. However, the electrode at the end of the spark plug eventually wears out and can cause performance issues.
When should you replace spark plugs?
Replacement should follow the vehicle maintenance schedule. This will be listed in the vehicle’s owner’s manual. Some cars require regular replacement at 30k, 60k or 100k miles. It is possible in some cases that a spark plug might fail before the service schedule, but it’s not typically common.
Avoiding spark plug replacement can cause:
- Difficulty starting your car.
- Check engine light for a misfire code.
- Flashing check engine light during acceleration for misfire, this can cause engine damage.
- Reduced fuel economy and/or power.
- Rough idle and/or unexplained engine vibration.
- Failed State emission testing.
Even if only one spark plug is found to be faulty, they should always be replaced in sets. Most engines will require 4,6, or 8 spark plugs.
How do mechanics replace spark plugs?
Spark plugs are threaded into the engine’s cylinder head(s). Most cars have one plug per cylinder, so a four-cylinder engine will have four plugs, a six-cylinder engine will have six plugs, and so forth. The mechanic will:
- Have the correct spark plugs on hand for your vehicle
- Pull any diagnostic trouble codes that may be related to worn spark plugs.
- Remove the original spark plugs and look at removed spark plugs for any clues indicating engine mis-operation exists; such as oil burning, excessively rich mixture, pre-ignition damage etc. Inform owner of any found unusual conditions.
- Install new plugs using a torque wrench.
- Finally, a road test of the vehicle to confirm normal operation.
Is it safe to drive with worn spark plugs?
Yes, but spark plugs that are worn enough to cause engine-misfiring have the potential to cause engine damage and overheating of the catalytic converter. Regardless of the age of the plugs, or mileage, if the engine misfires or runs poorly, the plugs should be inspected for defects. Generally, spark plug failure will not keep the engine from running, but in cases of extreme wear, you may experience a limitation in the speed at which you can drive the car. If the maintenance schedule says the plugs should be replaced, it is best to do so promptly.
When having spark plugs replaced keep in mind:
- High-speed driving may accelerate spark plug wear. Consider earlier than required inspection and tune-up if you operate the car in severe conditions.
- Plugs should always be promptly replaced per the manufacturer maintenance schedule even if they appear to be working perfectly.
- If your vehicle is equipped with spark plug wires (as opposed to a coil-on-plug system), the wires should be replaced at the same time. This may increase the cost of your repair.
- It is possible that when doing a spark plug replacement, your vehicle may also need additional parts like ignition coils, this will add to the repair cost.
- Some engines require that the intake manifold be removed while replacing spark plugs. This may increase the parts and labor cost for the repair.
- Leaking valve cover gaskets, which have let oil get in contact with the spark plugs, coils or wires, may be the cause of ignition system issues. Valve cover gaskets will need to be replaced in addition to the spark plugs, wires or coils. This will add to the repair cost.
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