The service and repair manual for the 1986 Buick LeSabre — 5.0L V8 and 3.8L V6 and 3.0L V6 engines, 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 | 1986 |
|---|---|
| Engines | 5.0L V8 — OHV 3.8L V6 — 232 cu in, OHV 3.0L V6 — OHV |
| Trims | Estate Wagon Wagon 4-Door · Custom Coupe 2-Door · Limited Coupe 2-Door · Custom Sedan 4-Door · Limited Sedan 4-Door |
| Federal record | 1 recall · 20 complaints · 0 technical service bulletins (refreshed 2026-08-21) |
02 / InsideSample pages from the 1986 LeSabre manual
03 / ContentsSections in the manual
- Quick Lookups 84
- Engine Performance 1,696
- Accessories & Equipment 409
- General Information 1,527
- Body & Frame 94
- Heating, Ventilation & A/C (HVAC) 285
- Brakes 254
- Maintenance 97
- Drivelines & Axles 72
- Steering 172
- Electrical 268
- Suspension 114
- Engine Mechanical 305
- Transmission 281
04 / Known issuesRecalls on federal record for the 1986 LeSabre
- Exterior Lighting — headlights › switch · 86V131000The push pull headlight switch may have electrical contacts which allow an intermittent headlight circuit causing headlight to flicker or suddenly go out.
Owners have filed 20 complaints and Buick has issued 0 technical service bulletins for the 1986 LeSabre. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.
FAQQuestions about the 1986 LeSabre manual
Is this manual specific to the 1986 LeSabre?
Yes. It is the OEM manual matched to the 1986 model year, covering the 5.0L V8 and 3.8L V6 and 3.0L V6 across the Estate Wagon Wagon 4-Door, Custom Coupe 2-Door, Limited 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 1986 LeSabre problems does it help with?
1 recall is on federal record for the 1986 LeSabre, covering exterior lighting. 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 1986 LeSabre wiring diagrams?
Yes — the complete wiring diagrams for the 1986 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 1986 Buick models
1992 LeSabre · 1991 LeSabre · 1990 LeSabre · 1989 LeSabre · 1988 LeSabre · 1987 LeSabre · 1985 LeSabre · 1984 LeSabre · 1983 LeSabre · 1982 LeSabre · all 24 years
1986 Buick Century · 1986 Buick Electra · 1986 Buick Regal · 1986 Buick Riviera · 1986 Buick Skyhawk · 1986 Buick Skylark · 1986 Buick Somerset · every 1986 model