Spark Plug Replacement
Stay on top of vehicle performance with professional spark plug replacement at Apex Automotive. Our ASE-certified team uses premium Iridium or Platinum plugs to restore fuel economy and power. Call to schedule an appointment with Dave Sr. or Dave Jr. today.
Spark plugs are essential for igniting the air-fuel mixture inside your engine’s cylinders, directly impacting performance, fuel economy, and emissions. At Apex Automotive in Gilbert, AZ, David Jr. and David Sr. understand that in Arizona’s intense desert heat, maintaining optimal spark plug condition is crucial to keep your engine running smoothly under stress.
A spark plug generates a high-voltage spark to ignite the compressed air and fuel mixture, initiating combustion. Over time, plugs wear out due to electrode erosion, carbon fouling, or heat damage, leading to incomplete combustion. Symptoms include rough idling, misfires, decreased power, increased exhaust smoke, and illuminated check engine lights.
Arizona conditions accelerate spark plug wear. High under-hood temperatures can cause pre-ignition and plug overheating, while dust and grit may contribute to fouling. Using the correct plug type and heat range for your engine is vital to prevent damage and ensure efficient combustion. For example, GM 5.3L and 6.2L V8 engines require plugs with specific gap settings and heat ratings to avoid lifter failures and misfires associated with AFM/DOD systems.
David Jr.’s diagnostic-first approach involves reviewing your vehicle’s history, performing OBD-II scans to detect misfire codes, and monitoring live engine data to confirm plug condition before recommending replacement. We avoid unnecessary parts swaps by verifying plug wear or fouling as the root cause.
When replacing spark plugs, we use premium Iridium or Platinum plugs that provide longer lifespan, better heat tolerance, and improved ignition reliability—especially important in the desert heat. Installation includes careful gapping, torqueing to manufacturer specifications, and inspecting ignition coils and wiring for complementary issues.
All spark plug replacements are performed by appointment only, ensuring David Jr.’s focused attention and precise workmanship. Whether your daily driver or performance vehicle needs a tune-up, trust Apex Automotive to restore your engine’s efficiency and power with expert spark plug replacement tailored to Arizona’s unique conditions.