The service and repair manual for the 1986 Buick Regal — 3.8L V6 and 5.0L V8 and 3.8L V6 engines, 4 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 | 3.8L V6 — 232 cu in, OHV, turbocharged 5.0L V8 — OHV 3.8L V6 — 232 cu in, OHV |
| Trims | Grand National Coupe 2-Door · T-Type Coupe 2-Door · Limited Coupe 2-Door · Base Coupe 2-Door |
| Federal record | 3 recalls · 14 complaints · 0 technical service bulletins (refreshed 2026-08-21) |
02 / InsideSample pages from the 1986 Regal manual
03 / ContentsSections in the manual
- Quick Lookups 66
- Engine Performance 1,706
- Accessories & Equipment 335
- General Information 1,523
- Body & Frame 97
- Heating, Ventilation & A/C (HVAC) 285
- Brakes 103
- Maintenance 45
- Drivelines & Axles 57
- Steering 126
- Electrical 230
- Suspension 53
- Engine Mechanical 232
- Transmission 229
04 / Known issuesRecalls on federal record for the 1986 Regal
- Seat Belts — front › anchorage · 86V093000Left handed driver's side shoulder belt anchor plate may be upside down in lock pillar so that the unthreaded slot of the plate aligned with the hole in the lock pillar. this resulted in the ancho.
- Structure · 87V124000Cracks would increase leading to difficulty in closingthe door and might allow door to come open dur.
- Exterior Lighting — headlights › switch · 88V014000Headlights would cycle on and off. sudden loss ofheadlights under severe weather or nightimer drivi.
Owners have filed 14 complaints and Buick has issued 0 technical service bulletins for the 1986 Regal. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.
FAQQuestions about the 1986 Regal manual
Is this manual specific to the 1986 Regal?
Yes. It is the OEM manual matched to the 1986 model year, covering the 3.8L V6 and 5.0L V8 and 3.8L V6 across the Grand National Coupe 2-Door, T-Type Coupe 2-Door, Limited Coupe 2-Door, Base Coupe 2-Door trims. Specifications and procedure sequences are the ones Buick published for this year.
What 1986 Regal problems does it help with?
3 recalls are on federal record for the 1986 Regal, covering seat belts, structure, 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 Regal 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 Regal years and 1986 Buick models
1992 Regal · 1991 Regal · 1990 Regal · 1989 Regal · 1988 Regal · 1987 Regal · 1985 Regal · 1984 Regal · 1983 Regal · 1982 Regal · all 30 years
1986 Buick Century · 1986 Buick Electra · 1986 Buick LeSabre · 1986 Buick Riviera · 1986 Buick Skyhawk · 1986 Buick Skylark · 1986 Buick Somerset · every 1986 model