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 MANUALSPLYMOUTH1994LASER RS TURBO, AWD, AUTOMATICREPAIR AND DIAGNOSISENGINE PERFORMANCEENGINE CONTROLS - SPECIFICATIONSIGNITION SYSTEMSPARK PLUGSSPARK PLUG SPECIFICATIONS - 4-CYLINDER
1994 Plymouth Laser RS Turbo, AWD, Automatic
Spark Plug Specifications - 4-Cylinder
1994 Plymouth Laser RS Turbo, AWD, AutomaticSECTION Spark Plug Specifications - 4-Cylinder
SPARK PLUG TYPE - 4-CYLINDER
| Application | Champion No. |
|---|---|
| 1.8L & 2.0L Non-Turbo | RN9YC4 |
| 2.0L Turbo | RN9YC |
| 2.2L & 2.5L | RN12YC |
SPARK PLUG SPECIFICATIONS - 4-CYLINDER
| Application | Gap In. (mm) | Torque Ft. Lbs. (N.m) |
|---|---|---|
| 1.8L & 2.0L Non-Turbo | .039-.043 (.99-1.09) | 15-21 (20-28) |
| 2.0L Turbo | .028-.031 (.71-.79) | 15-21 (20-28) |
| 2.2L & 2.5L | .035 (.89) | 20 (27) |
RENDER: 1.0x
NO RELATED
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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.