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
Fuel System: Precaution
- PRECAUTIONÂ
- Before working on fuel system, disconnect negative (-) terminal cable from battery.
- Do not smoke or work near an open flame when working on fuel system.
- Keep gasoline away from rubber or leather parts.
- WORK FOR PREVENT GASOLINE FROM SPILLING OUTÂ CAUTION:
- Perform disconnecting operation of the fuel system parts after working for prevent gasoline form spilling out.
- As there is remained pressure in the fuel line after working for prevent gasoline from spilling out, prevent it from splashing inside the vehicle compartment by covering them with a shop rag.
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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