How much does it cost to replace spark plugs in Acura TL?
What affects the price
- Engine type and model year: The TL used different V6 engines across generations, which affects access to the plugs and the time required for replacement.
- Spark plug type and brand: Copper plugs are cheaper than platinum or iridium options; six plugs are required, so differences multiply quickly in the total.
- Labor rate and shop type: Dealerships generally charge more per hour than independent repair shops, and rates vary by region.
- Engine access and complexity: Some engines require removing coils, intake components, or other parts to reach the plugs, increasing labor time.
- Coil and ancillary parts: Ignition coils or related hardware may be replaced if they show wear or misfire symptoms, adding to the cost.
In practice, most TL owners see a mid-range total, but the final price hinges on your car’s specific year and the shop you choose. If you’re comfortable with DIY, you can slash the bill by handling the labor yourself.
Cost by engine option
The Acura TL used different V6 engines over its years, which affects access and pricing. Here is a rough guide:
Older TL models with 3.2L V6 (roughly 1999–2003)
Access is typically manageable for a capable home mechanic. At a shop, expect roughly $250–$500 total; parts alone for six plugs commonly run about $12–$150 depending on plug type, while a DIY approach could keep parts under $120.
Newer TL models with 3.5L V6 (roughly 2009–2014)
Some rear plugs can be more challenging to reach, especially if the intake assembly must be moved. Typical shop total ranges from about $350–$650; parts costs for six plugs generally fall in the $12–$150 range, depending on the type chosen. DIY parts may cost around $40–$120.
Note: These ranges reflect common U.S. market rates as of 2024–2025. Local pricing can vary, and dealerships often charge toward the higher end.
DIY vs Professional service
Choosing to do the job yourself can dramatically cut labor costs but requires the right tools and mechanical confidence. If you prefer a professional service, you’ll benefit from proper torque specifications and a guarantee against misfires or cross-threading. Here are the basics to consider:
- Tools and parts: You’ll need six spark plugs, a spark plug socket, a torque wrench, and possibly intake-related gaskets or coils depending on how you approach the job.
- Typical steps: Remove coil packs, detach any components obstructing access, install new plugs to the recommended torque, and reassemble.
- Safety and warranty: Work with the engine cool, disconnect power as advised, and be aware that some warranties or dealer service plans may have specific coverage requirements.
DIY can significantly reduce total cost, but assess your skill level and tool set before diving in to avoid damage or improper installation.
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