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 MANUALSLEXUS2006SC 430REPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMSFI SYSTEM - DIAGNOSTICSPROBLEM SYMPTOMS TABLE
2006 Lexus SC 430
Problem Symptoms Table
2006 Lexus SC 430SECTION Problem Symptoms Table
PROBLEM SYMPTOMS TABLE - ENGINE CONTROL SYSTEM
| Symptom | Suspected Area |
|---|---|
| Engine does not crank (does not start) |
|
| No initial combustion (does not start) |
|
| No complete combustion (does not start) |
|
| Engine cranks normally (difficult to start) |
|
| Cold engine (difficult to start) |
|
| Hot engine (difficult to start) |
|
| High engine idle speed (poor idling) |
|
| Low engine idle speed (poor idling) |
|
| Rough idling (poor idling) |
|
| Hunting (poor idling) |
|
| Hesitation/Poor acceleration (poor driveability) |
|
| Surging (poor driveability) |
|
| Engine stalls soon after starling |
|
| Unable to refuel/Difficult to refuel |
|
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.