How much does it cost to replace spark plugs in a Chevy Volt?

In most cases, replacing the spark plugs on a Chevy Volt will cost about $200 to $500, depending on model year, plug type, and local labor rates. The job covers parts and labor, with higher costs if ignition coils or wires need replacement or if you choose a dealership over an independent shop. Typical guidance is to plan for a maintenance interval near 100,000 miles, but exact timing can vary by driving conditions.

Cost factors and typical pricing

The price you pay for spark plug replacement on a Chevy Volt depends on several common factors. The following list outlines the main components that affect the final bill.

• Parts cost: The Volt uses four spark plugs. OEM or aftermarket plugs can range from roughly $5 to $25 per plug depending on the material (copper, platinum, or iridium). Expect about $20 to $100 for four plugs.


• Labor time and rate: A typical plug replacement takes about 1 to 2 hours, depending on access and whether any extra steps are needed. Labor rates vary by region and shop, commonly from $75 to $150 per hour.


• Shop type: Dealerships generally charge higher labor rates than independent shops. A dealership may add premium for service bay time and specialized GM technicians.


• Additional parts or services: If ignition coils or coil-on-plug assemblies are worn or misfiring, a shop may suggest replacing coils or ignition wires, which can add $50 to $300 per coil or more to the bill.


• Regional price differences: Costs can vary significantly by city and state due to labor market conditions and overhead.

Concluding note for this section: most customers see a total in the ballpark of a few hundred dollars for a standard plug change, with higher totals if coils/wiring are replaced, or if service is performed at a high-cost dealership.

Maintenance context and timing

For the Chevy Volt, spark plugs are part of the gas-engine maintenance schedule. Replacement is commonly recommended around 100,000 miles under normal driving conditions, though severe driving, frequent short trips, or noticeable misfires can prompt earlier inspection or replacement. Always consult your owner’s manual or a trusted technician for the exact interval for your vehicle’s model year and usage.

When planning the service, consider these practical tips to manage cost without sacrificing quality:

Choosing where to have it done

Get multiple quotes from both independent shops and dealers. Ask specifically for the cost of four OEM or equivalent spark plugs and the labor for a plug replacement, so you can compare apples to apples. Some shops may include a diagnostics check or coil inspection in the quoted price.

DIY viability and safety

Replacing spark plugs on a Chevy Volt is feasible for an experienced DIYer, but the Volt’s gas engine sits among other powertrain components in a compact bay, and the vehicle contains a high-voltage electrical system. If you are not trained in automotive electrical safety, it is safer to have the work performed by a professional technician who is certified to work around high-voltage systems.

Model-year nuances and expectations

Across the Volt’s production span, the basic four-plug replacement process remains similar, but there can be small variations in plug type recommendations and coil arrangements. When requesting service, verify that the approved spark plugs (OEM or equivalent) are listed for your exact model year and engine configuration, and confirm whether any coil-related parts are included in the quote.

Summary

Replacing spark plugs in a Chevy Volt typically costs between $200 and $500, with most of the variation driven by plug type, labor rates, and whether additional parts (like ignition coils) are needed. Expect about 1–2 hours of labor and four plugs as part of a standard job. For best results, obtain multiple quotes, verify the plug specification for your model year, and weigh dealership versus independent shop options. Regular maintenance planning helps keep the Volt’s gas engine running smoothly without unexpected costs.

How much does it cost to have a mechanic change your spark plugs?

The average cost for a Spark Plug Replacement is between $264 and $390. Labor costs are estimated between $182 and $267 while parts are priced between $82 and $123. This range does not include taxes and fees, and does not factor in your unique location. Related repairs may also be needed.

What is the bad year for the Chevy Volt?

The Chevy Volt years to avoid are generally the 2012, 2013, and 2017 models, primarily due to issues with the heater coolant heater, the auxiliary coolant pump, and the battery energy control module (BECM). The 2016 model also had more frequent issues, and some 2018 models need to be checked for the BECM failure if manufactured before March 2018. 
Years to avoid

• 2012 and 2013: These model years are prone to failures with the heater coolant heater and the auxiliary coolant pump, which can be expensive to repair or replace. 
• 2017: This year is notorious for BECM failures. While a recall and extended warranty are in place, the parts can be difficult to get, causing significant downtime. 
• 2016: Although the first year of the second generation, the 2016 model had a higher frequency of issues than other second-gen years. 
• 2018: Be cautious with 2018 models manufactured before March 2018, as they may have the same BECM issue that plagued the 2017 model year. 

What to look for in other years

• 2014 and 2015: These are generally reliable years, but the 2015 model was the last year of the first generation and had a smaller battery than the second-gen models that started production later in the year. 
• 2018: The 2018 model year is considered by some to be a good balance of value and reliability, especially if you can find one made after March 2018 to avoid the BECM issue. 
• 2019: The 2019 model year offers some upgrades but can be expensive due to dealer pricing. 

Do I really need to change my spark plugs at 100,000 miles?

Yes, replacing spark plugs at 100,000 miles is a common and often necessary maintenance task, as many modern vehicles have spark plugs rated to last that long. However, the exact interval depends on your vehicle's make, model, and the type of spark plug installed, so you should always check your owner's manual for the manufacturer's specific recommendation. 
This video explains when to change spark plugs and what happens if you don't: 1mHonest Mechanic ColoradoYouTube · Dec 24, 2023
Why it's important

• Engine performance: Spark plugs that are past their prime can cause rough idling, poor acceleration, and decreased fuel efficiency. 
• Preventing damage: Over time, worn-out plugs can put extra stress on other components, like ignition coils, and may seize in the engine block, making them harder to remove later. 
• Preventative maintenance: Replacing spark plugs is a form of preventative maintenance that can prevent more costly repairs down the line. 

This video explains why it's important to change spark plugs at 100k miles: 52sWhite One Auto, LLCYouTube · May 19, 2021
What to consider

• Owner's manual: Your vehicle's owner's manual is the most reliable source for the correct replacement interval and recommended plug type. 
• Spark plug type: The lifespan of spark plugs varies by material. Iridium plugs are often rated for 100,000 miles or more, while other types like copper or platinum have shorter lifespans. 
• Driving conditions: Severe driving conditions can shorten the life of spark plugs, so your interval may be shorter than recommended if you frequently tow, drive in extreme temperatures, or frequently start and stop. 

What is the life expectancy of the Chevy Volt battery?

The Chevy Volt battery is designed to last for many years, with owners reporting exceptional longevity, sometimes over 300,000 miles with minimal degradation thanks to the vehicle's liquid-cooling system and software. General Motors provides an 8-year/100,000-mile limited warranty for the battery, which covers 75% of its original capacity, and many factors like proper charging and avoiding extreme temperatures can extend its life. 
You can watch this video to learn how to check your EV's battery health: 0:54ThatJamesGuyYouTube · Jul 13, 2024
Battery longevity and performance

• Long lifespan: Chevy Volt batteries are known for their durability, with some owners reporting minimal battery capacity loss even after hundreds of thousands of miles. 
• Built-in protection: The Volt has a liquid-cooling system that helps maintain an optimal battery temperature, which preserves battery life. 
• Software management: The vehicle's software also helps protect the battery by limiting the charge to a certain percentage (e.g., below 100%) to extend its lifespan. 
• Extended driving capability: Because the Volt is a plug-in hybrid, it can continue to run on its gasoline engine even if the battery is depleted, ensuring the vehicle can still be driven. 

Warranty and maintenance

• Warranty: A limited warranty is provided for the high-voltage battery, covering it for 8 years or 100,000 miles, whichever comes first. 
• Maintenance: Regular charging and avoiding extreme temperature exposure will help maximize the battery's lifespan. Staying up to date with manufacturer software updates is also recommended.