GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Buick
🢒
2002
🢒
Century
🢒
Engine
🢒 Engine Controls - 3.8L
Engine
All Description and Operation
Knock Sensor (KS) System Description
Powertrain Control Module Description
Service Programming System (SPS) Description
Diagnostic Procedures
Poor Fuel Fill Quality
Service Bay Test
Electrical/Electronic Specifications
Diagnostic Trouble Code (DTC) Type Definitions
Temperature Versus Resistance
Gas, Vacuum and Fluids Schematics and Diagrams
Evaporative Emissions Hose Routing Diagram
Removal, Installation, and Replacement
Powertrain Control Module Replacement