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 MANUALSCHEVROLET2002IMPALA LSREPAIR AND DIAGNOSISELECTRICALCHARGING SYSTEMSTROUBLESHOOTINGSYSTEM OPERATION CHECK
2002 Chevrolet Impala LS
System Operation Check
2002 Chevrolet Impala LSSECTION System Operation Check
NOTE:
Before making electrical checks, visually inspect all terminals for clean, tight connections. Ensure all charging system related fuses are okay. Check generator mounting bolts and drive belt tension. Ensure battery is fully charged and in good condition prior to testing charging system. See BATTERY TESTING & INSPECTION
under ON-VEHICLE TESTING. Ensure battery cable connections are in good condition and free of corrosion. Ensure starting system is okay. See appropriate STARTERS article in ELECTRICAL.
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:
- • 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.