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.
2003 Nissan-Datsun Sentra SE-R, AutomaticFACTORY OEM SERVICE PROCEDURE
Spark Plugs
SPARK PLUG TYPE
| Application | NGK | ||
|---|---|---|---|
| Altima, Maxima, Murano, Pathfinder, Sentra & 350Z | |||
| Standard | PLFR5A-11 | ||
| Cold | PLFR6A-11 | ||
| Hot | PLFR4A-11 | ||
| Frontier & Xterra | |||
| 2.4L | |||
| Standard | PFR5G-11 | ||
| Cold | PFR6G-11 | ||
| 3.3L (Except Supercharged) | |||
| Standard | PFR5G-11 | ||
| Cold | PFR6G-11 | ||
| Hot | PFR4G-11 | ||
| 3.3L (Supercharged) | |||
| Standard | PFR6G-11 | ||
| Cold | PFR7G-11 | ||
| Hot | PFR5G-11 | ||
SPARK PLUG SPECIFICATIONS
| Application | Gap - In. (mm) | Torque - Ft. Lbs. (N.m) |
|---|---|---|
| All Models | .043 (1.10) | 14-22 (20-29) |
Factory Service Tools
Use the Manual With the Right Hardware
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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.
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