The service and repair manual for the 1984 Buick Century — 3.8L V6 and 3.0L V6 and 2.5L I4 and 4.3L V6 and 2.8L V6 engines, 11 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 | 1984 |
|---|---|
| Engines | 3.8L V6 — 232 cu in, OHV 3.0L V6 — OHV 2.5L I4 — 151 cu in, OHV 4.3L V6 — OHV 2.8L V6 — OHV |
| Trims | Estate Wagon 4-Door · Olympia Limited Sedan 4-Door · Base Sedan 4-Door · Custom Wagon 4-Door · T-Type Coupe 2-Door · Custom Coupe 2-Door +5 |
| Federal record | 3 recalls · 11 complaints · 0 technical service bulletins (refreshed 2026-08-21) |
02 / InsideSample pages from the 1984 Century manual
03 / ContentsSections in the manual
- Quick Lookups 56
- Engine Performance 1,304
- Accessories & Equipment 297
- General Information 1,528
- Body & Frame 107
- Heating, Ventilation & A/C (HVAC) 242
- Brakes 94
- Maintenance 35
- Drivelines & Axles 11
- Steering 116
- Electrical 156
- Suspension 73
- Engine Mechanical 369
- Transmission 288
- Front Bracket Bolts 41
- Mounting Nuts 21
- Gear-Driven Pump Hold-Down Bolt 20
04 / Known issuesRecalls on federal record for the 1984 Century
- Fuel System, Gasoline — delivery › hoses, lines/piping, and fittings · 85V034000The fuel system may leak at the throttle body injection fuel feed pipe connection.
- Service Brakes, Hydraulic — foundation components › drum · 85V104000Some wagons were assembled with a ja2 rear system instead of the ja3 brake system. these station wagons may exceed the maximum stopping distance required by fmvss 105.
- Seats — front assembly › recliner · 84V011000Some vehicles have bucket seat back locks that do not conform to federal motor vehicle safety standard 207, anchorage of seats. in event of a crash, the seat back lock may not function.
Owners have filed 11 complaints and Buick has issued 0 technical service bulletins for the 1984 Century. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.
FAQQuestions about the 1984 Century manual
Is this manual specific to the 1984 Century?
Yes. It is the OEM manual matched to the 1984 model year, covering the 3.8L V6 and 3.0L V6 and 2.5L I4 and 4.3L V6 and 2.8L V6 across the Estate Wagon 4-Door, Olympia Limited Sedan 4-Door, Base Sedan 4-Door, Custom Wagon 4-Door, T-Type Coupe 2-Door, Custom Coupe 2-Door, T-Type Sedan 4-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 1984 Century problems does it help with?
3 recalls are on federal record for the 1984 Century, covering fuel system, gasoline, service brakes, hydraulic, seats. 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 1984 Century wiring diagrams?
Yes — the complete wiring diagrams for the 1984 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 Century years and 1984 Buick models
1990 Century · 1989 Century · 1988 Century · 1987 Century · 1986 Century · 1985 Century · 1983 Century · 1982 Century · all 24 years
1984 Buick Electra · 1984 Buick LeSabre · 1984 Buick Regal · 1984 Buick Riviera · 1984 Buick Skyhawk · 1984 Buick Skylark · every 1984 model