Boost Your Ride’s Efficiency: A Step-by-Step Guide on How to Change Spark Plugs 2017 GMC Acadia

Are you experiencing a rough idle, misfires, or a decrease in fuel efficiency in your 2017 GMC Acadia? These could be signs that your spark plugs need replacing. While it might seem daunting, changing spark plugs on your Acadia is a relatively straightforward DIY job. This guide will walk you through the process step-by-step, equipping you with the knowledge and confidence to tackle this maintenance task yourself.

Why Change Your Spark Plugs?

Spark plugs are essential components in your car’s engine. They ignite the air-fuel mixture, providing the power that propels your vehicle. Over time, spark plugs wear down and become less efficient, leading to:

• Reduced engine performance: Misfires and a rough idle can occur when spark plugs are worn out.
• Decreased fuel efficiency: A faulty spark plug can cause your engine to burn more fuel, impacting your gas mileage.
• Increased emissions: Worn spark plugs can lead to higher emissions, contributing to air pollution.
• Engine damage: In extreme cases, a completely failed spark plug can cause damage to your engine.

Gather Your Tools and Materials

Before you begin, make sure you have all the necessary tools and materials:

• New spark plugs: Ensure you purchase the correct spark plugs for your 2017 GMC Acadia. Refer to your owner’s manual or consult with a mechanic for the appropriate type and gap.
• Spark plug socket: A 5/8″ spark plug socket with a magnetic end is recommended.
• Torque wrench: This is crucial for tightening the spark plugs to the correct specifications.
• Ratchet: A 3/8″ drive ratchet will be needed to work with the spark plug socket.
• Extension: An extension bar will help reach the spark plugs in tighter spaces.
• Gloves: Protect your hands from dirt and grime.
• Safety glasses: Shield your eyes from any debris.
• Shop towels: Keep your work area clean and absorb any spills.

Prepare Your Acadia for Spark Plug Replacement

1. Park your Acadia on a level surface and engage the parking brake.
2. Disconnect the negative battery cable. This ensures your safety by preventing any electrical shocks.
3. Locate the spark plugs: The spark plugs are located on the top of the engine, under the valve cover.
4. Remove the valve cover: This will give you access to the spark plugs. Refer to your owner’s manual for specific instructions on removing the valve cover for your Acadia model.

Remove the Old Spark Plugs

1. Use the spark plug socket and ratchet to loosen the spark plugs. Turn the socket counter-clockwise to loosen the plugs.
2. Remove the old spark plugs. Once the plugs are loosened, you can pull them out by hand.
3. Inspect the old spark plugs: Examine the condition of the old plugs for signs of wear, fouling, or damage. This can help you determine if they were the source of any engine issues.

Install the New Spark Plugs

1. Install the new spark plugs. Carefully thread the new spark plugs into the cylinder head.
2. Tighten the new spark plugs with the torque wrench. Refer to your owner’s manual or consult with a mechanic for the recommended torque specification for your Acadia. Overtightening can damage the spark plugs and cylinder head.
3. Repeat steps 1 and 2 for each spark plug.

Reassemble Your Acadia

1. Replace the valve cover. Make sure to tighten the valve cover bolts securely.
2. Reconnect the negative battery cable.
3. Start your Acadia and let it idle for a few minutes. This will allow the engine to warm up and ensure that the spark plugs are seated properly.

Post-Installation Checks and Tips

• Check for leaks: After reassembling your Acadia, inspect for any leaks around the spark plugs or valve cover.
• Listen for misfires: Pay attention to your engine’s sound. If you hear any misfires or rough idling, double-check that the spark plugs are properly installed and tightened.
• Drive your Acadia for a short distance: This will help ensure that the new spark plugs are functioning correctly.
• Dispose of old spark plugs properly: Do not throw them in the trash. Check with your local recycling center for proper disposal options.

End of the Road: Final Thoughts on Changing Spark Plugs

Changing spark plugs on your 2017 GMC Acadia is a relatively simple maintenance task that can be done at home with the right tools and knowledge. By following these steps, you can save money and gain a greater understanding of your vehicle’s maintenance needs. Remember to always prioritize safety and consult your owner’s manual or a mechanic if you have any doubts or encounter any difficulties.

Questions You May Have

1. How often should I change my spark plugs?

The recommended interval for spark plug replacement varies depending on the type of spark plugs used and your driving habits. However, a general guideline is to replace them every 30,000 to 100,000 miles.

2. Can I use any type of spark plug for my 2017 GMC Acadia?

No, it’s crucial to use the correct type of spark plug for your specific vehicle. Refer to your owner’s manual or consult with a mechanic to ensure you purchase the appropriate spark plugs.

3. What should I do if I encounter problems while changing spark plugs?

If you encounter any difficulties or are unsure about any step, it’s best to consult with a qualified mechanic. They can provide expert guidance and assistance.

4. Can I change spark plugs myself if I have no mechanical experience?

While changing spark plugs is a relatively simple task, it’s always recommended to have some basic mechanical knowledge. If you are unsure, it’s best to seek professional help.

5. Are there any other maintenance tasks I should perform at the same time as changing spark plugs?

Yes, you can also consider changing the air filter, fuel filter, and PCV valve at the same time as changing spark plugs. These components are related to engine performance and should be inspected and replaced as needed.