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 MANUALSBUICK2000CENTURY CUSTOMREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMENGINE CONTROL SYSTEM - TESTING & ENGINE COMPONENT TESTING
2000 Buick Century Custom
Engine Control System - Testing & Engine Component Testing
2000 Buick Century CustomSECTION Engine Control System - Testing & Engine Component Testing
- Model Identification
- Introduction
- Air Induction Systems
- Computerized Engine Controls
- Pcm Output Diagnosis (2.2L & 2.4L)
- Pcm Power & Ground Check
- Powertrain Control Module Connector Terminal Identification
- Notes
- Powertrain Control Module Connector Terminal Identification (2.2L Cavalier & SUNFIRE, & 2.4L ALERO, Cavalier, Grand Am & SUNFIRE)
- Powertrain Control Module Connector Terminal Identification (3.1L - Century)
- Powertrain Control Module Connector Terminal Identification (3.1L - MALIBU)
- Powertrain Control Module Connector Terminal Identification (3.1L - Grand PRIX & Lumina)
- Powertrain Control Module Connector Terminal Identification (3.4L - ALERO & Grand Am)
- Powertrain Control Module Connector Terminal Identification (3.4L - Impala & Monte CARLO)
- Powertrain Control Module Connector Terminal Identification (3.5L - Intrigue)
- Powertrain Control Module Connector Terminal Identification (3.8L - BONNEVILLE)
- Powertrain Control Module Connector Terminal Identification (3.8L - LESABRE)
- Powertrain Control Module Connector Terminal Identification (3.8L - CAMARO & Firebird)
- Powertrain Control Module Connector Terminal Identification (3.8L - Grand PRIX)
- Powertrain Control Module Connector Terminal Identification (3.8L - Impala & Monte CARLO)
- Powertrain Control Module Connector Terminal Identification (3.8L - Park Avenue)
- Powertrain Control Module Connector Terminal Identification (3.8L - Regal)
- Powertrain Control Module Connector Terminal Identification (4.6L - DEVILLE)
- Powertrain Control Module Connector Terminal Identification (4.6L - ELDORADO)
- Powertrain Control Module Connector Terminal Identification (4.6L - SEVILLE)
- Powertrain Control Module Connector Terminal Identification (5.7L - CAMARO, Corvette & Firebird)
- Engine Sensors & Switches
- Modules, Motors, Relays & Solenoids
- Fuel System
- Idle Control System
- Ignition System
- Emission Systems & Subsystems
- Miscellaneous Controls
- Notes
- A/C Compressor Clutch Controls (Except 1.9L & 3.0L)
- A/C Compressor Clutch Controls (1.9L)
- A/C Compressor Clutch Controls (3.0L)
- Electric Cooling Fan Control (Except 1.9L & 3.0L)
- Electric Cooling Fan Control (1.9L)
- Electric Cooling Fan Control (3.0L)
- Pcm Controlled Generator
- Pcm Controlled Starter
- Pcm Controlled Tachometer
- Pcm Controlled Warning Lights
- Transmission
- Component Locations
- Notes
- Component Locations (2.2L VIN 4 & 2.4L VIN T - Cavalier & SUNFIRE)
- Component Locations (2.4L VIN T - ALERO & Grand Am)
- Component Locations (3.0L VIN R - CATERA)
- Component Locations (3.1L VIN J - Century)
- Component Locations (3.1L VIN J - MALIBU)
- Component Locations (3.1L VIN J - Lumina)
- Component Locations (3.1L VIN J - Grand PRIX)
- Component Locations (3.4L VIN E - ALERO & Grand Am)
- Component Locations (3.4L VIN E - Impala & Monte CARLO)
- Component Locations (3.5L VIN H - Intrigue)
- Component Locations (3.8L VIN K & 1 - BONNEVILLE, LESABRE & Park Avenue)
- Component Locations (3.8L VIN K - CAMARO & Firebird)
- Component Locations (3.8L VIN K & 1 - Grand PRIX)
- Component Locations (3.8L VIN K - Impala & Monte CARLO)
- Component Locations (3.8L VIN K & 1 - Regal)
- Component Locations (4.6L VIN Y & 9 - DEVILLE, ELDORADO & SEVILLE)
- Component Locations (5.7L VIN G - CAMARO & Firebird)
- Component Locations (5.7L VIN G - Corvette)
- Engine Component Locations (1.9L VIN 7 & 8 - SATURN)
- Engine Component Locations (2.2L VIN F - SATURN)
- Engine Component Locations (3.0L VIN R - SATURN)
- Transmission Component Locations (1.9L VIN 7 & 8 - SATURN A/T)
- Transmission Component Locations (1.9L VIN 7 & 8 - SATURN M/T)
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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.