If no issues are currently present, you can change your spark plugs between every 30,000-90,000 miles. This timeline can vary based on exact make and model of vehicle.
What Do Spark Plugs Do?
Spark plugs produce a quick electrical arc which ignites the mixture of air and fuel inside your engine’s combustion chamber. This fast burst of energy ultimately forces the pistons to move.
The crankshaft is responsible for transforming that movement into rotating the wheels, helping to propel the car forward. Since diesel engines rely on greater compression ratios to create combustion, they do not contain spark plugs.
How Often Do You Need To Change Spark Plugs?
As mentioned, drivers should expect to change spark plugs every 30,000-90,000 miles as long as there no issues with the vehicle. Always reference your owner’s manual for the recommended vehicle maintenance.
Why Do Spark Plugs Go Bad?
Time is the primary culprit behind failing spark plugs. The anti-corrosion coating protecting this component will eventually wear out over time. Dirt, oil, and carbon can now reach the plug and build up on it.
A bad fuel filter can also be responsible for spark plugs wearing out. Grime can eventually accumulate on the spark plugs and erode the insulators. This can force electrical sparks throughout the engine. Misfiring and ineffective timing can impact the engine’s overall performance.
Bad Spark Plug Signs
Worn out spark plugs will undoubtedly impact how your engine performs. The following are signs of worn out/bad spark plugs:
- Slow To Accelerate: Worn out spark plugs could make your vehicle feel sluggish. The engine may stop, stall, and sputter before starting. This can be very dangerous when in traffic or traveling at high speeds.
- Rough Idling: Strange noises like rattling or knocking coming from the engine can be indications that it’s time to change your spark plugs.
- Check Engine Light Ignited: This light can be activated for a variety of reasons. A recommendation to change your spark plugs is one of the reasons why. It’s best to take your car to the auto care professionals when this light is activated.
- Poor Fuel Economy: If you are getting fewer miles to the gallon than you are used to, faulty spark plugs could be to blame.
- Hard To Start: Most believe this is an issue due to a failing battery but worn out spark plugs can be the culprit here.
Bridwell Automotive Center In Scottsdale, AZ
If your car, truck, or suv has been showing any of these signs or has overheated Bridwell Automotive Center can help! Our master ASE repair technicians work on all makes, models, and can repair your overheating car quickly and affordably. Our radiator repair service and automotive repair shop is located in Scottsdale where we proudly care for any vehicle maintenance or repair need.
