GMC Acadia Spark Plug Replacement Cost 

The cost of changing the spark plugs in a GMC Acadia can vary based on a number of variables, including labor costs at various dealerships or repair shops and the kind of spark plugs that are used. You should budget between $100 and $300 on average for a professional replacement job. Remember that the price covers labor as well as parts.

The following table shows the anticipated GMC Acadia spark plug replacement cost  with model years:

Model YearEstimated Replacement Cost
2008 GMC Acadia$250 – $500
2009 GMC Acadia$300 – $600
2010 GMC Acadia$350 – $700
2011 GMC Acadia$400 – $800
2012 GMC Acadia$450 – $900
2014 GMC Acadia$500 – $1,000

It is crucial to remember that these numbers are only estimates and may change based on a number of variables, including labor expenses at various service centers and pricing variations by location.

Related:- 7 GMC Acadia Years To Avoid – 4 Best Model Years To Choose 

How much does the average spark plug replacement cost

The type of car you drive and where you reside are two examples of variables that can affect the typical cost of spark plug replacement. A mechanic’s shop will often charge you between $100 and $300 as GMC Acadia spark plug replacement costs. But if you’re ready to do the work yourself and have some mechanical know-how, you may save a lot of money by buying the spark plugs and replacing them yourself.

How many spark plugs does a GMC Acadia have

  • The model and year of a GMC Acadia determine how many spark plugs it has. Spark plugs are necessary for the ignition of the V6 or 4-cylinder engines that are often found in GMC Acadia. But the precise amount can be different.
  • It usually takes six spark plugs for a V6 engine, one for each cylinder. Smooth functioning and effective combustion are guaranteed by this design. Conversely, a four-cylinder engine typically has four spark plugs evenly spaced out between the cylinders.
  • Although the majority of GMC Acadias have six or four spark plugs included, some models can have different numbers. It is always advisable to see an authorized mechanic or review the owner’s manual to find out how many are needed for your specific car.
  • Overall, keeping your GMC Acadia model operating at peak performance and fuel economy depends on knowing how many spark plugs it needs.

What are the symptoms of failing spark plugs

1: Decreased Fuel Efficiency 

A drop in fuel economy is one of the first indicators that your spark plugs are failing. This happens as a result of the engine not getting the right spark to burn the fuel effectively. Your car’s gas mileage may consequently decrease, and you might find yourself needing to visit the gas station more frequently.

2: Engine Misfire

An engine misfire is another typical sign that the spark plugs are deteriorating. A malfunctioning spark plug could be the cause of any minor jerking or hesitation you experience when accelerating, particularly when traveling uphill or at higher speeds. A misfire happens when the spark plug ignites the air-fuel mixture in one or more cylinders improperly, resulting in a brief power outage.

3: Hard Starting 

Spark plugs that are worn out may be the cause of your car’s difficulty starting or the number of times it has to be started before it does. Spark plugs may eventually be unable to provide a sufficient initial electrical charge for ignition due to deterioration. As a result, starting your engine becomes harder and takes more work.

4: Rough Idling: 

An unsteady engine idle is caused by worn or dirty spark plugs, which make it difficult for them to ignite the air-fuel mixture. The entire car is vibrating, and the seats and steering wheel may start to shake visibly as a result. Ignoring this symptom may eventually result in decreased fuel economy and possible harm to other engine parts.

5: Decreased Acceleration: 

 Spark plugs ignite the air-fuel mixture and provide power by providing the sparks required for combustion in each cylinder. When they begin to malfunction, there is insufficient spark energy for efficient combustion, which results in slow acceleration and a drop in overall performance.

6: Increased Fuel Consumption: 

An important sign of malfunctioning spark plugs is higher fuel usage. Incomplete combustion happens more frequently when malfunctioning spark plugs find it difficult to ignite the fuel-air mixture, wasting gasoline that passes through the exhaust system unburned. This results in a drop in miles per gallon and increases the cost of gas.


In conclusion, a number of variables might affect how much it costs to replace the spark plugs in a GMC Acadia. The kind of spark plugs used, the labor charges at various repair shops, and any further repairs that are required can all affect the final cost. However, owners should budget between $150 and $300 on average for a full spark plug replacement for their GMC Acadia.

Owners should make routine maintenance a top priority and keep an eye out for any indications—such as poor fuel efficiency or harsh engine performance—that suggest their spark plugs need to be changed. Owners may minimize future repair expenses and maintain optimal performance from their GMC Acadia while being proactive by doing routine maintenance.


1. How often should I replace the spark plugs in my GMC Acadia?

It is recommended to replace the spark plugs in a GMC Acadia every 60,000 to 100,000 miles or as per your vehicle’s maintenance schedule.

2. Can I replace the spark plugs in my GMC Acadia myself?

While it is possible to replace the spark plugs yourself if you have the necessary tools and experience, it is recommended to have a professional mechanic perform this task for optimal results.

3. What are the signs that my GMC Acadia may need new spark plugs?

Common signs of worn-out spark plugs include rough idle, misfiring engine, decreased fuel efficiency, difficulty starting the vehicle, and reduced engine power.

4. Are there any specific types of spark plugs recommended for the GMC Acadia?

It is best to use OEM (Original Equipment Manufacturer) or high-quality aftermarket spark plugs specified for your GMC Acadia model to ensure proper fit and performance.

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