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 MANUALSSUBARU1998FORESTER BASEREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMENGINE CONTROLS - BASIC TESTINGIGNITION CHECKSSPARK
1998 Subaru Forester Base
Ignition Checks: Spark
1998 Subaru Forester BaseSECTION Spark
Check for spark at spark plug wires using a spark tester. Check resistance of each spark plug wire. Replace wire if resistance is not within specification. See HIGH TENSION WIRE RESISTANCE table.
HIGH TENSION WIRE RESISTANCE
| Application | Ohms | |
|---|---|---|
| Forester | ||
| No. 1 & 3 | 6430-15,010 | |
| No. 2 & 4 | 6670-15,570 | |
| Impreza | ||
| No. 1 | 5950-13,890 | |
| No. 2 & 3 | 6240-14,560 | |
| No. 4 | 6670-15,570 | |
| Legacy | ||
| All Wires | 5120-12,340 | |
RENDER: 1.0x
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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.