The service and repair manual for the 1991 Buick Regal — 3.8L V6 and 3.1L V6 engines, 6 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 | 3.8L V6 — 232 cu in, OHV 3.1L V6 — OHV |
| Trims | Gran Sport Sedan 4-Door · Custom Coupe 2-Door · Limited Coupe 2-Door · Custom Sedan 4-Door · Limited Sedan 4-Door · Gran Sport Coupe 2-Door |
| Federal record | 2 recalls · 303 complaints · 9 technical service bulletins (refreshed 2026-08-21) |
02 / InsideSample pages from the 1991 Regal manual
03 / ContentsSections in the manual
- Quick Lookups 69
- Engine Performance 1,176
- Accessories & Equipment 320
- General Information 1,523
- Body & Frame 152
- Heating, Ventilation & A/C (HVAC) 198
- Brakes 249
- Maintenance 86
- Drivelines & Axles 22
- Steering 128
- Electrical 237
- Suspension 81
- Engine Mechanical 237
- Transmission 480
- 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 Regal
- Exterior Lighting · 95V152000Consequence of non-compliance: during illumination, the bulbs will show clear rather than amber and.
- Fuel System, Gasoline — delivery › hoses, lines/piping, and fittings · 93V145000If the coupling were to separate and an ignition sourceis present, an engine compartment fire could.
Owners have filed 303 complaints and Buick has issued 9 technical service bulletins for the 1991 Regal. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.
FAQQuestions about the 1991 Regal manual
Is this manual specific to the 1991 Regal?
Yes. It is the OEM manual matched to the 1991 model year, covering the 3.8L V6 and 3.1L V6 across the Gran Sport Sedan 4-Door, Custom Coupe 2-Door, Limited Coupe 2-Door, Custom Sedan 4-Door, Limited Sedan 4-Door, Gran Sport Coupe 2-Door trims. Specifications and procedure sequences are the ones Buick published for this year.
What 1991 Regal problems does it help with?
2 recalls are on federal record for the 1991 Regal, covering exterior lighting, fuel system, gasoline. 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 Regal 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 Regal years and 1991 Buick models
1997 Regal · 1996 Regal · 1995 Regal · 1994 Regal · 1993 Regal · 1992 Regal · 1990 Regal · 1989 Regal · 1988 Regal · 1987 Regal · 1986 Regal · 1985 Regal · all 30 years
1991 Buick Century · 1991 Buick Commercial Chassis · 1991 Buick LeSabre · 1991 Buick Park Avenue · 1991 Buick Reatta · 1991 Buick Riviera · 1991 Buick Roadmaster · 1991 Buick Skylark · every 1991 model