Ignition Coil J Primary/Secondary Circuit Malfunction (Cylinder 10)
The P0360 code means the vehicle's onboard diagnostic system has detected: Ignition Coil J Primary/Secondary Circuit Malfunction (Cylinder 10). This is a moderate severity code.
- Keep driving?
- Short distances only
- DIY difficulty
- moderate
- Estimated cost
- $50 - $400 (parts and labor)
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What Are the Symptoms of P0360?
- Engine misfire on cylinder 10
- Rough idle on V10 engine
- Check Engine Light illuminated or flashing
- Reduced power and acceleration
- Poor fuel economy
What Causes P0360? (Most Likely First)
- Faulty ignition coil on cylinder 10 Very High
- Worn or fouled spark plug on cylinder 10 High
- Damaged coil connector or wiring High
- PCM coil driver circuit failure for cylinder 10 Moderate
- Spark plug stuck or broken in cylinder head Low
Can I Still Drive with P0360?
Short distances only. P0360 is rated moderate severity. Keep trips short and get it diagnosed soon rather than waiting for symptoms to worsen.
Frequently Asked Questions
Can I drive with code P0360?
You can drive short distances. On a V10 engine, the misfire will be noticeable but the engine will still function. Repair to prevent catalytic converter damage.
Why are Ford V10 spark plugs notorious?
The 3-valve Ford Triton V10 engines (2005+) use a two-piece spark plug design that is prone to breaking during removal if not serviced at proper intervals. Special extraction tools exist for this common issue.
Should I replace all 10 coils at once?
Not necessarily. If one coil has failed and the others test good, replace only the failed coil along with its spark plug. However, if multiple coils have failed or the vehicle has very high mileage, a full set replacement may be more economical in the long run.
Mechanics Guide Step-by-step diagnosis
How Do You Diagnose P0360?
-
Swap cylinder 10 ignition coil with another cylinder and clear codes to test
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Carefully inspect and remove the spark plug on cylinder 10 -- watch for seized plugs
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Measure coil resistance and compare to specification
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Check the coil connector for damage, corrosion, or melted plastic
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Test PCM coil driver signal at the connector
Sources 2
This page is built from documented references. Verify against your own service info before repair work.
- SAE J2012Diagnostic Trouble Code Definitions (defines the generic OBD-II code ranges)
- Cross-checked against the SAE J2012:2002 DTC table (2026-08-27)archived scan of the SAE standard — readable copy, not SAE’s current edition
Which Vehicles Commonly Get P0360?
- 2005-2015 Ford F-250 V10
- 2004-2014 Ford E-Series V10
- 2006-2016 Ford F-350 V10
- 2003-2013 Ford Excursion V10
- 2008-2018 Dodge Viper V10
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