Common Symptoms
- Check engine light illuminated
- Rough idle or engine misfire on cylinder 5
- Reduced engine power or hesitation during acceleration
- Increased fuel consumption
- Engine runs lean on cylinder 5
Most Likely Root Causes
- Faulty fuel injector on cylinder 5
- Shorted injector wiring or connector
- Failed injector driver circuit in PCM
- Corrosion or water intrusion in injector connector
- Damaged wiring harness rubbing on engine components
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Component Location
Cylinder 5 fuel injector is located on the intake side of the cylinder head corresponding to the fifth cylinder in the engine firing order.
Manufacturer Notes
Some manufacturers use different cylinder numbering conventions, so verify which physical cylinder corresponds to cylinder 5 for the specific engine configuration.
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