How long do spark plugs last on a Chevy Equinox?
Spark plugs in a Chevy Equinox generally last about 100,000 miles under normal driving, though intervals can range from 60,000 to 100,000 miles depending on engine type and plug material. This article explains the factors that influence lifespan, typical replacement intervals, how to tell when plugs are worn, and tips to maximize life.
In practical terms, the Equinox lineup uses several engines over its generations, and many modern engines use long-life platinum or iridium plugs designed for extended intervals. Driving style, climate, and maintenance practices can shorten or stretch that life. Here’s what you need to know.
What affects spark plug life in the Equinox
Several variables determine how long spark plugs will last in a Chevy Equinox. Understanding these can help you plan maintenance and avoid surprises on the road.
Plug material and design
Platinum or iridium-tipped plugs are designed for longer life and typically carry longer replacement intervals than copper plugs. In many newer Equinox models, these long-life plugs are standard, potentially extending life up to about 100,000 miles under normal conditions.
Driving conditions and habits
Short trips, frequent cold starts, heavy city traffic, and towing can cause deposits and hotter engine conditions that wear plugs faster, meaning you might reach the replacement point earlier than the nominal interval.
Maintenance and system health
A clean air intake, proper ignition coils, and well-functioning fuel injectors help plugs stay in good condition longer. Misfires or poor fuel quality can foul plugs and shorten their life.
Overall, the life of spark plugs is a balance between design and how you drive and care for the vehicle. Most owners see long-life plugs reach or exceed the 100,000-mile mark under normal use.
Typical replacement intervals
The official maintenance guidance and real-world experience suggest a broad range. The most recent Equinox models with long-life plugs are commonly rated for replacement around 100,000 miles under normal driving. Some older engines, or models with copper plugs, may require replacement sooner, typically in the 60,000–90,000-mile range. Severe driving conditions can shorten the interval.
- Modern Equinox engines with long-life plugs: roughly 100,000 miles.
- Older engines or non-long-life plugs: typically 60,000–90,000 miles.
- Severe driving conditions (lots of short trips, extreme heat, heavy loads): may require replacement around 60,000 miles or sooner.
Always refer to the owner’s manual or consult a Chevrolet dealer for the exact interval for your year and engine, as specifications can vary by model year and region.
Signs your spark plugs may need replacement
- Rough idle or engine misfires, especially during startup or acceleration.
- Reduced fuel economy or noticeable loss of power.
- Difficulty starting the engine or longer cranking times.
- Engine knocking or hesitation under load.
- Check Engine Light or misfire codes from the onboard diagnostics.
If you notice these symptoms, have the spark plugs and ignition system inspected promptly to avoid potential engine damage or poor performance.
Maintenance tips to maximize spark plug life
Proactive maintenance can help you get the most life out of your spark plugs while preserving efficiency and performance.
- Keep the air filter clean and replace it as recommended to prevent deposits from reaching the combustion chamber.
- Use high-quality fuel and follow the recommended octane for your engine.
- Follow GM’s maintenance schedule and use OEM or equivalent spark plugs.
- Ensure correct plug gap and proper torque when installing new plugs to avoid cross-threading or improper seating.
- Address misfires or ignition coil issues promptly to prevent accelerated plug wear.
Regular maintenance not only extends spark plug life but also sustains overall engine efficiency and low emissions.
Summary
In most Chevrolet Equinox models, spark plugs are designed to last about 100,000 miles under normal driving, though actual life can vary from 60,000 to 100,000 miles based on engine type, plug material, and driving conditions. Always check your specific model year’s owner’s manual for the official interval and watch for signs of wear that warrant inspection or replacement. A proactive maintenance plan helps keep performance steady and fuel efficiency high.
How much does it cost to replace spark plugs on a Chevy Equinox?
The cost to replace the spark plugs in a Chevy Equinox typically ranges from $300 to $400 for a professional job, including parts and labor, though this can vary by model year and location. DIY replacement is significantly cheaper, with costs for parts and basic tools often falling between $20 and $50.
Professional replacement
- Average range: Expect to pay around $300 to $400 for a shop or dealership to replace all four spark plugs, reports Reddit users and KBB.
- Factors influencing cost: Prices can vary based on your specific Equinox model year and your geographic location. Some newer or more complex models might have higher costs.
- Dealer vs. independent shop: Dealerships may charge more but often use manufacturer-recommended parts and have specialized training. Independent shops might be cheaper but could use aftermarket parts.
DIY replacement
- Savings: Doing it yourself can save a significant amount of money. You may only need to spend $20 to $50 on the plugs and a few basic tools.
- Ease: The job is considered relatively simple for those with some mechanical know-how and is often a good candidate for a DIY project, say Reddit users.
- Tools and parts: You can find spark plugs online or at auto parts stores, with prices ranging from around $10 for a single ACDelco plug to $25 or more for premium brands.
How to choose
- If you're not comfortable with car repairs, a professional replacement is the safer option.
- If you are comfortable with basic maintenance, the DIY route is a great way to save money.
- Always be sure to get the correct spark plugs for your specific model year and engine.
What year to stay away from Chevy Equinox?
You should stay away from the Chevy Equinox years that include 2005–2008, 2010–2017, and 2018, due to common issues like excessive oil consumption, engine failures, and electrical problems. The most frequently cited model years to avoid are the ones from 2010-2013, primarily due to the high rate of oil consumption in the 2.4L engine, which can lead to costly engine damage.
Specific years and common problems
- 2005–2008: Prone to engine failures, electrical issues, and cooling system problems.
- 2010–2013: Frequently cited for heavy oil consumption, which can lead to engine wear and failure if not constantly monitored.
- 2014–2015: Some model years within this range are considered better than others, but the 2.4L engine still has a history of oil consumption issues.
- 2017: Known for issues similar to the 2010-2013 models, particularly with the 2.4L engine.
- 2018: Reported to have problems with the check engine light and issues with the battery.
What are signs of spark plugs going bad?
Signs of a bad spark plug include rough idling, engine misfires, difficulty starting the engine, poor acceleration, and decreased fuel economy. You may also notice a loss of engine power, vibrations, or a "check engine" light on the dashboard.
Engine performance issues
- Engine misfires: Your car may hesitate, stutter, or "hiccup" while driving, especially when accelerating.
- Rough idling: The engine may shake, vibrate, or make unusual noises when the car is idling.
- Poor acceleration: The vehicle may feel sluggish, unresponsive, or lack power when you press the gas pedal.
- Engine knocking: Some models may also experience a knocking sound.
Starting and fuel problems
- Difficulty starting: Your car may struggle to start or require multiple attempts, especially in cold weather.
- Decreased fuel efficiency: You may notice your car consuming more fuel than usual, leading to higher costs.
- Unusual exhaust: You might see black smoke or notice a raw fuel smell from the exhaust.
Other warning signs
- Check engine light: The "check engine" light on your dashboard may illuminate.
- Vehicle vibration: You may feel excessive vibrations that feel like they're coming from the engine.
How often should I change the spark plugs on my Chevy Equinox?
Every 60,000 Miles
Every 60,000 Miles
It's finally time for your spark plugs to be replaced and spark plug wires to be inspected. These mechanical components are responsible for the ignition spark that starts your Chevy Equinox. If your spark plugs are not properly working, you won't be able to travel.
