The service and repair manual for the 1985 Buick Riviera — 3.8L V6 and 5.7L V8 and 5.0L V8 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 | 1985 |
|---|---|
| Engines | 3.8L V6 — 232 cu in, OHV, turbocharged 5.7L V8 — OHV 5.0L V8 — OHV |
| Trims | Luxury Coupe 2-Door · Base Convertible 2-Door · T-Type Coupe 2-Door |
| Federal record | 2 recalls · 7 complaints · 0 technical service bulletins (refreshed 2026-08-21) |
02 / InsideSample pages from the 1985 Riviera manual






03 / ContentsSections in the manual
- Quick Lookups 66
- Engine Performance 1,557
- Accessories & Equipment 292
- General Information 1,528
- Body & Frame 148
- Heating, Ventilation & A/C (HVAC) 242
- Brakes 93
- Maintenance 59
- Drivelines & Axles 37
- Steering 74
- Electrical 157
- Suspension 83
- Engine Mechanical 317
- Transmission 128
- Mounting Nuts 21
- L diesel is 25
04 / Known issuesRecalls on federal record for the 1985 Riviera
- Fuel System, Gasoline · 06E043000This condition may cause an inadequate seal at the connection, potentially leading to a fuel leak. i.
- Vehicle Speed Control · 89V102000Servo rod assembly could catch on engine components andresult in a stuck throttle with potential for.
Owners have filed 7 complaints and Buick has issued 0 technical service bulletins for the 1985 Riviera. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.
FAQQuestions about the 1985 Riviera manual
Is this manual specific to the 1985 Riviera?
Yes. It is the OEM manual matched to the 1985 model year, covering the 3.8L V6 and 5.7L V8 and 5.0L V8 across the Luxury Coupe 2-Door, Base Convertible 2-Door, T-Type Coupe 2-Door trims. Specifications and procedure sequences are the ones Buick published for this year.
What 1985 Riviera problems does it help with?
2 recalls are on federal record for the 1985 Riviera, covering fuel system, gasoline, vehicle speed control. 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 1985 Riviera wiring diagrams?
Yes — the complete wiring diagrams for the 1985 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 Riviera years and 1985 Buick models
1991 Riviera · 1990 Riviera · 1989 Riviera · 1988 Riviera · 1987 Riviera · 1986 Riviera · 1984 Riviera · 1983 Riviera · 1982 Riviera · all 17 years
1985 Buick Century · 1985 Buick Electra · 1985 Buick LeSabre · 1985 Buick Regal · 1985 Buick Skyhawk · 1985 Buick Skylark · 1985 Buick Somerset Regal · every 1985 model