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 Lexus ES 300FACTORY OEM SERVICE PROCEDURE
Service Data
SERVICE DATA
| Spark plug | ||
| Recommended spark plug | DENSO NGK |
SK20R11 IFR6A11 |
| Electrode gap | Standard Maximum |
1.0-1.1mm (0.039-0.043 in.) 1.2 mm (0.047 in.) |
| Camshaft position sensor (RH Cylinder) | ||
| Resistance | at cold at hot |
835-1400 ohm 1,060-1645 ohm |
| Crank position sensor | ||
| Resistance | at cold at hot |
1,630 - 2740 ohm 2,065 - 3225 ohm |
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.
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