The service and repair manual for the 1986 Buick Somerset — 3.0L V6 and 2.5L I4 engines, 3 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 | 3.0L V6 — OHV 2.5L I4 — 151 cu in, OHV |
| Trims | T-Type Coupe 2-Door · Custom Coupe 2-Door · Limited Coupe 2-Door |
| Federal record | 1 recall · 7 complaints · 1 technical service bulletins (refreshed 2026-08-21) |
02 / InsideSample pages from the 1986 Somerset manual
03 / ContentsSections in the manual
- Quick Lookups 68
- Engine Performance 1,279
- Accessories & Equipment 330
- General Information 1,523
- Body & Frame 94
- Heating, Ventilation & A/C (HVAC) 183
- Brakes 73
- Maintenance 45
- Drivelines & Axles 15
- Steering 112
- Electrical 249
- Suspension 55
- Engine Mechanical 241
- Transmission 220
04 / Known issuesRecalls on federal record for the 1986 Somerset
- Fuel System, Gasoline · 06E043000This condition may cause an inadequate seal at the connection, potentially leading to a fuel leak. i.
Owners have filed 7 complaints and Buick has issued 1 technical service bulletins for the 1986 Somerset. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.
FAQQuestions about the 1986 Somerset manual
Is this manual specific to the 1986 Somerset?
Yes. It is the OEM manual matched to the 1986 model year, covering the 3.0L V6 and 2.5L I4 across the T-Type Coupe 2-Door, Custom Coupe 2-Door, Limited Coupe 2-Door trims. Specifications and procedure sequences are the ones Buick published for this year.
What 1986 Somerset problems does it help with?
1 recall is on federal record for the 1986 Somerset, 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 1986 Somerset 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 Somerset years and 1986 Buick models
1986 Buick Century · 1986 Buick Electra · 1986 Buick LeSabre · 1986 Buick Regal · 1986 Buick Riviera · 1986 Buick Skyhawk · 1986 Buick Skylark · every 1986 model