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.
2021 Subaru Forester BaseFACTORY OEM SERVICE PROCEDURE
Ignition Timing: Inspection
CAUTION:
After warming-up, engine becomes very hot. Be careful not to burn yourself at measurement.
- Before checking the ignition timing, check the following item:
- Check the air cleaner element is free from clogging, spark plugs are in good condition, and hoses are connected properly.
- Check the malfunction indicator light does not illuminate.
- Warm up the engine.
- Read the ignition timing using Subaru Select Monitor. Ref. to ENGINE (DIAGNOSTICS) (H4DO)>DATA MONITOR>OPERATION
.NOTE: If the ignition timing is out of standard, refer to the basic diagnostic procedure of "ENGINE (DIAGNOSTICS)". Ref. to ENGINE (DIAGNOSTICS) (H4DO)>BASIC DIAGNOSTIC PROCEDURE>PROCEDURE .
Ignition timing [BTDC/{r/min}]:
Standard 8°±10°/675
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:
- • 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.