The service and repair manual for the 1991 Buick Century — 3.3L V6 and 2.5L I4 and 3.1L V6 engines, 7 trims. Matched to this exact model year, so the specifications and sequences are the ones Buick published for your car, not figures carried over from a neighbouring year.
01 / FitmentWhat this manual covers
| Model year | 1991 |
|---|---|
| Engines | 3.3L V6 — OHV 2.5L I4 — 151 cu in, OHV 3.1L V6 — OHV |
| Trims | Limited Wagon 4-Door · Special Sedan 4-Door · Base Sedan 4-Door · Custom Wagon 4-Door · Custom Coupe 2-Door · Custom Sedan 4-Door +1 |
| Federal record | 1 recall · 50 complaints · 1 technical service bulletins (refreshed 2026-08-21) |
02 / InsideSample pages from the 1991 Century manual
03 / ContentsSections in the manual
- Quick Lookups 69
- Engine Performance 1,252
- Accessories & Equipment 213
- General Information 1,528
- Body & Frame 35
- Heating, Ventilation & A/C (HVAC) 206
- Brakes 56
- Maintenance 53
- Drivelines & Axles 22
- Steering 128
- Electrical 165
- Suspension 70
- Engine Mechanical 198
- Transmission 588
- Body 22
- Air Bag Module 13
- Turn Signal Switch Screw 35
- Lock Cylinder Retaining Screw 40
04 / Known issuesRecalls on federal record for the 1991 Century
- Seat Belts — front › anchorage · 95V173000Consequence of non-compliance: in a collison, stress can cause the attachment metal to tear and all.
Owners have filed 50 complaints and Buick has issued 1 technical service bulletins for the 1991 Century. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.
FAQQuestions about the 1991 Century manual
Is this manual specific to the 1991 Century?
Yes. It is the OEM manual matched to the 1991 model year, covering the 3.3L V6 and 2.5L I4 and 3.1L V6 across the Limited Wagon 4-Door, Special Sedan 4-Door, Base Sedan 4-Door, Custom Wagon 4-Door, Custom Coupe 2-Door, Custom Sedan 4-Door, Limited Sedan 4-Door trims. Specifications and procedure sequences are the ones Buick published for this year.
What 1991 Century problems does it help with?
1 recall is on federal record for the 1991 Century, covering seat belts. The manual carries the manufacturer's diagnostic and repair procedures for those systems; the recall repairs themselves are done free by Buick dealers.
Does it include 1991 Century wiring diagrams?
Yes — the complete wiring diagrams for the 1991 build, alongside repair procedures, specifications and diagnostics.
Is it a subscription?
No. $29.99 once and the manual is yours. It is a digital manual — nothing ships; access details arrive by email after checkout and it works on any device.
RelatedOther Century years and 1991 Buick models
1997 Century · 1996 Century · 1995 Century · 1994 Century · 1993 Century · 1992 Century · 1990 Century · 1989 Century · 1988 Century · 1987 Century · 1986 Century · 1985 Century · all 24 years
1991 Buick Commercial Chassis · 1991 Buick LeSabre · 1991 Buick Park Avenue · 1991 Buick Reatta · 1991 Buick Regal · 1991 Buick Riviera · 1991 Buick Roadmaster · 1991 Buick Skylark · every 1991 model