What is the spark plug gap on a 2009 Ford Focus?
The typical spark plug gap for the 2009 Ford Focus with the common 2.0-liter engine is 0.043 inches (1.1 mm). Always verify the exact specification for your engine code and plug type to avoid misfires or engine damage.
In practice, the spark plug gap is a precise setting that affects ignition efficiency, fuel economy, and emissions. While North American Focus models commonly use a 0.043-inch gap for the 2.0L Duratec engine, different markets or engine variants can have slightly different requirements. Always consult your owner's manual or a Ford service bulletin for the exact figure that applies to your specific vehicle.
Engine variants and gap specifications
The following guidelines cover the most common setup for U.S.-market 2009 Focus models. If you have a different market engine, use this as a general reference and verify against official data for your exact engine code.
- Spark plug gap: 0.043 inches (1.1 mm) for the typical 2.0L Duratec I4 engine in the 2009 Focus when using standard plugs (copper, platinum, or iridium). This is the common OEM recommendation.
- Plug type considerations: When installing aftermarket plugs, ensure they are compatible with Ford’s gap recommendations; many plugs specify a similar 0.043-inch gap, but always confirm the exact value for the plug model you choose.
- Market variations: Some European or other-market variants of the 2009 Focus (with different displacements or configurations) may have gaps in the range of approximately 0.043–0.046 inches (1.1–1.2 mm). Always check the engine code and local service data for an exact figure.
In short, for the most common 2009 Focus engines in North America, set plugs to 0.043 inches (1.1 mm) unless a Ford service document specifies a different value for your engine code or plug type. Gap accuracy matters for performance and emissions, so verify before installation.
How to check and set the gap
Before you install plugs or adjust a used plug, prepare with the proper tools and follow the recommended procedure. The steps below describe a typical method; always refer to your manual for torque specs and any model-specific instructions.
- Disconnect the battery and access the spark plugs by removing the coil/plug boot as needed.
- Inspect the spark plug for wear or damage and replace if necessary; use a plug that matches Ford’s specification for your engine.
- Measure the gap with a feeler gauge and adjust to 0.043 inches (1.1 mm) by carefully bending the ground electrode if required.
- Reinstall the plug to the specified torque (often around 13–15 ft-lbs for many Ford engines; confirm with your manual).
- Reconnect ignition components, clear any codes, start the engine, and verify smooth idle without misfires.
Exact torque values and replacement criteria vary by engine code and plug type; always consult the owner's manual or a dealership service bulletin for precise instructions. After installation, allow the engine to run and check for proper performance.
Summary
The standard spark plug gap for the common 2009 Ford Focus 2.0L engine is 0.043 inches (1.1 mm). Variations can occur based on market and engine code, so always verify the correct gap for your vehicle and plug type. Proper gap, correct plug selection, and correct torque are essential for optimal performance and emissions.
Bottom line: set to 0.043 inches (1.1 mm) for most 2009 Focus engines, but confirm with your specific vehicle data before final installation. This small adjustment can influence reliability, efficiency, and emissions.
What is the spark plug Gap for a 2009 Ford Focus?
0.052in
Vehicle Fit Details
| Vehicle Type | Submodel | Fitment Notes |
|---|---|---|
| 2009 Ford Focus | S | Gap 0.052in |
| 2009 Ford Focus | SEL | Gap 0.052in |
| 2009 Ford Focus | SE | Gap 0.052in |
What is the spark plug Gap on a 2009 Ford Fusion?
Notes: Iridium IX spark plug. Gap 0.052".
What is the correct spark plug Gap?
The correct spark plug gap depends on your vehicle, but it's typically between 0.0280.0280.028 and 0.0600.0600.060 inches. To find the exact specification, consult your vehicle's owner's manual or a parts catalog. You will need a spark plug gapping tool to check the current gap and adjust it by carefully widening or narrowing the electrode as needed, before confirming the final measurement with the tool.
How to check and set the spark plug gap
- Consult your manual: Find the recommended gap for your specific vehicle in the owner's manual or check with a parts store, as pre-gapped plugs can sometimes have an incorrect or damaged gap.
- Gather your tools: You will need a spark plug gapping tool. You can also use old spark plugs to practice gapping without risking damage to new ones.
- Check the existing gap: Slide the correct size for your plug into the gap on the gapping tool until you feel resistance. This will tell you the current gap.
- Adjust the gap:
- To widen the gap: Gently pry the ground electrode away from the center electrode using the tool or a flat-head screwdriver.
- To narrow the gap: Gently press the ground electrode closer to the center electrode.
- Re-check the gap: After adjusting, use the tool to check the gap again and ensure it is correct and the electrode is aligned.
- Avoid damage: Be careful not to exert excessive pressure, as this can damage the plug's electrode. When gapping iridium or platinum plugs, be extra careful to avoid breaking the fine tip.
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What is the spark plug Gap for a 3.8 L V6?
Set 6 U-Groove Design Spark Plugs Gap 0.060 For 3.0L 3.2L 3.8L 4.1L V6 L6.
