Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSFORD2010FOCUS SES, 4D SEDAN, STANDARDREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - PINPOINT TEST HF: CATALYST EFFICIENCY MONITOR AND EXHAUST SYSTEMS THROUGH PINPOINT TEST JC: SECONDARY IGNITION (COIL PACK) - (EXCEPT DIESEL & HYBRID)PINPOINT TEST JB: SECONDARY IGNITION (COP)INTRODUCTION
2010 Ford Focus SES, 4D Sedan, Standard
Pinpoint Test JB: Secondary Ignition (COP): Introduction
2010 Ford Focus SES, 4D Sedan, StandardSECTION Introduction
A damaged ignition system may cause high catalyst temperatures. Check the components next to the catalyst and muffler for heat damage.
This pinpoint test is intended to diagnose the following:
- spark plugs (12405)
- secondary side of the coil
CYLINDER APPLICATIONS CHART
| Vehicle | Firing Order for Coil On Plug Applications |
|---|---|
| BASE, 4-cylinder applications | 1 3 4 2 |
| BASE, 6-cylinder applications | 1 4 2 5 3 6 |
| BASE, 8-cylinder applications | 1 3 7 2 6 5 4 8 |
| BASE, 10-cylinder applications | 1 6 5 10 2 7 3 8 4 9 |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.