The service and repair manual for the 1991 Buick LeSabre — the 3.8L V6 engine, 5 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 |
| Trims | Custom Coupe 2-Door · Limited Coupe 2-Door · Custom Sedan 4-Door · Limited Sedan 4-Door · Base Coupe 2-Door |
| Federal record | 1 recall · 46 complaints · 3 technical service bulletins (refreshed 2026-08-21) |
02 / InsideSample pages from the 1991 LeSabre manual
03 / ContentsSections in the manual
- Quick Lookups 68
- Engine Performance 955
- Accessories & Equipment 293
- General Information 1,528
- Body & Frame 99
- Heating, Ventilation & A/C (HVAC) 277
- Brakes 162
- Maintenance 46
- Drivelines & Axles 22
- Steering 128
- Electrical 160
- Suspension 162
- Engine Mechanical 195
- 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 LeSabre
- Fuel System, Gasoline · 06E043000This condition may cause an inadequate seal at the connection, potentially leading to a fuel leak. i.
Owners have filed 46 complaints and Buick has issued 3 technical service bulletins for the 1991 LeSabre. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.
FAQQuestions about the 1991 LeSabre manual
Is this manual specific to the 1991 LeSabre?
Yes. It is the OEM manual matched to the 1991 model year, covering the 3.8L V6 across the Custom Coupe 2-Door, Limited Coupe 2-Door, Custom Sedan 4-Door, Limited Sedan 4-Door, Base Coupe 2-Door trims. Specifications and procedure sequences are the ones Buick published for this year.
What 1991 LeSabre problems does it help with?
1 recall is on federal record for the 1991 LeSabre, covering 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 LeSabre 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 LeSabre years and 1991 Buick models
1997 LeSabre · 1996 LeSabre · 1995 LeSabre · 1994 LeSabre · 1993 LeSabre · 1992 LeSabre · 1990 LeSabre · 1989 LeSabre · 1988 LeSabre · 1987 LeSabre · 1986 LeSabre · 1985 LeSabre · all 24 years
1991 Buick Century · 1991 Buick Commercial Chassis · 1991 Buick Park Avenue · 1991 Buick Reatta · 1991 Buick Regal · 1991 Buick Riviera · 1991 Buick Roadmaster · 1991 Buick Skylark · every 1991 model