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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSNISSAN-DATSUN2003FRONTIER BASE, STANDARDREPAIR AND DIAGNOSISENGINE PERFORMANCESPECIFICATIONSENGINE CONTROLS - SERVICE & ADJUSTMENT SPECIFICATIONSMECHANICAL CHECKSVALVE CLEARANCE
2003 Nissan-Datsun Frontier Base, Standard
Valve Clearance
2003 Nissan-Datsun Frontier Base, StandardSECTION Valve Clearance
NOTE:
All engines, except QG18DE, QR25DE and VQ35DE, are equipped with hydraulic lifters. Adjustments are not required.
VALVE CLEARANCE SPECIFICATIONS (1)
| Application | In. (mm) | |||||
|---|---|---|---|---|---|---|
| Altima, Sentra (2.5L) & Murano | ||||||
| Intake | .013-.016 (.32-.40) | |||||
| Exhaust | .013-.016 (.33-.41) | |||||
| Altima, Maxima, Pathfinder & 350Z | ||||||
| Intake | (2) .010-.013 (.26-.34) | |||||
| Exhaust | (2) .011-.015 (.29-.37) | |||||
| Frontier & Xterra (2.4L) | ||||||
| Intake | .012-.015 (.31-.39) | |||||
| Exhaust | .015-.019 (.39-.47) | |||||
| Sentra (1.8L) | ||||||
| Intake | .008-.019 (.21-.47) | |||||
| Exhaust | .012-.022 (.30-.56) | |||||
|
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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.