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 MANUALSCHEVROLET1966CHEVY II BASE, NOT AVAILABLE, 2.5L ENG, AUTOMATIC TRANS, TRANS MFR CD THM400REPAIR AND DIAGNOSIS (SINGLE PAGE)ELECTRICALCHARGING SYSTEMSALTERNATOR & GENERATORTROUBLE SHOOTING & DIAGNOSISLIGHTS ON, IGNITION OFF (CARS WITH ALTERNATOR)
1966 Chevrolet Chevy II Base, Not Available, 2.5L Eng, Automatic Trans, Trans Mfr CD THM400
Lights On, Ignition Off (Cars With Alternator)
1966 Chevrolet Chevy II Base, Not Available, 2.5L Eng, Automatic Trans, Trans Mfr CD THM400SECTION Lights On, Ignition Off (Cars With Alternator)
Shorted positive diode in alternator with continuous drain on battery.
TESTING CAUTION - On cars with double contact voltage regulator, do not ground regulator FLD terminal when making tests.
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.