Does a 2007 Dodge Caliber have spark plugs?
Yes. The 2007 Dodge Caliber uses four spark plugs—one for each cylinder—in both of its four-cylinder engine options.
Engine options and spark plug layout
There were two four-cylinder engines offered for the 2007 Caliber, and both configurations require a total of four spark plugs. Here is a quick overview of the engines and their spark plug setup.
- 2.0L World engine — 4-cylinder; 4 spark plugs (one per cylinder).
- 2.4L World engine — 4-cylinder; 4 spark plugs (one per cylinder).
Conclusion: Regardless of which engine you have, the 2007 Caliber uses four spark plugs in total.
Spark plug maintenance and replacement intervals
Spark plug life varies with plug type and driving conditions. The Caliber’s engines typically use modern long-life plugs, but exact intervals depend on the installed plug type and how the car is driven. The following guidelines cover common scenarios you may encounter.
- Copper-core spark plugs: commonly replaced around 60,000 miles, or sooner under harsh conditions.
- Platinum or iridium spark plugs: commonly rated up to about 100,000 miles under normal driving.
- Always verify the exact interval and gap specification in the owner's manual or with a Dodge service advisor for your specific vehicle.
Conclusion: For most 2007 Caliber models with platinum/iridium plugs, plan for roughly 100,000-mile intervals; copper plugs typically require earlier changes. Always follow the manufacturer’s guidance for your particular car.
Signs your spark plugs may need replacement
Be attentive to performance symptoms that can indicate worn or fouled spark plugs. If any of these appear, have the ignition system inspected and the plugs tested or replaced as needed.
- Rough idle or engine misfire
- Difficulty starting, especially in cold weather
- Poor acceleration or reduced power
- Decreased fuel economy or sputtering during acceleration
- Visible wear on plugs or damaged ignition components during inspection
Conclusion: If you notice any of these symptoms, schedule a check of the spark plugs and related ignition components to restore smooth operation and efficiency.
Summary
The 2007 Dodge Caliber uses four spark plugs in either its 2.0L or 2.4L four-cylinder engines. Maintenance intervals depend on the plug type, with platinum/iridium plugs often rated for up to about 100,000 miles and copper plugs typically around 60,000 miles. Watch for signs of wear such as rough idling, hard starting, or reduced fuel economy, and consult the owner's manual or a dealer for exact specifications and service recommendations.
