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.
2005 Subaru Baja Base, AutomaticFACTORY OEM SERVICE PROCEDURE
Ignition (H4SO): General Description: Specifications
IGNITION SPECIFICATION
| Item | Designation | |||
|---|---|---|---|---|
| Ignition coil and ignitor assembly | Model | FH0137 | ||
| Manufacturer | DEMCO | |||
| Secondary coil resistance | 12.8 kΞ©+/-15% | |||
| Spark plug | Type and manufacturer | RC10YC4..........CHAMPION | ||
| Alternate | BKR5E-11 .......... NGK | |||
| Thread size | mm | 14, P = 1.25 | ||
| Spark gap | mm (in) | 1.0 - 1.1 (0.039 - 0.043) | ||
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
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