2001 BUICK CENTURY spark plugs replace

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Page 315 of 351

BUICK CENTURY 2001  Owners Manual 6-65 Engine Specifications
Engine VIN Code J. . . . . . . . . . . . . . . . . . . . . . . . . . . . 
Engine Type 3100 V6. . . . . . . . . . . . . . . . . . . . . . . . . 
Displacement 191 CID. . . . .

Page 329 of 351

BUICK CENTURY 2001  Owners Manual Scheduled Maintenance
7-14
100,000 Miles (166 000 km)
Inspect spark plug wires. 
An Emission Control Service. 
Replace spark plugs. 
An Emission Control Service.
Change automatic transaxle fluid an