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 MANUALSBUICK1992CENTURY CUSTOM, 2D COUPE, 2.5 RREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 12 (ENGINE CONTROLS - BASIC TESTING)BASIC IGNITION SYSTEM CHECKS (C4)HEI-EST DISTRIBUTORIGNITION COIL POWER SOURCE
1992 Buick Century Custom, 2D Coupe, 2.5 R
Ignition Coil Power Source
1992 Buick Century Custom, 2D Coupe, 2.5 RSECTION Ignition Coil Power Source
WARNING: This page does not describe the selected car, but rather 34 other vehicles, including the 1991 Pontiac Sunbird, 1991 Pontiac Grand Prix, 1991 Pontiac Grand Am, 1991 Pontiac Firebird, and 1991 Pontiac Bonneville. However, it is still accessible from the selected car via links, so may be relevant.
- Turn ignition on. Using voltmeter, check voltage between terminal "B" of ignition coil and ground on models with remote-mounted coil.
- On models equipped with integral ignition coil, check voltage between "BAT" terminal and ground at distributor. Battery voltage should exist. If not, check for open circuit, blown ignition fuse or defective ignition switch.
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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.