The service and repair manual for the 1984 GMC S15 — 2.8L V6 and 2.0L I4 and 1.9L I4 and 2.2L I4 engines, 7 trims. Matched to this exact model year, so the specifications and sequences are the ones GMC published for your car, not figures carried over from a neighbouring year.
01 / FitmentWhat this manual covers
| Model year | 1984 |
|---|---|
| Engines | 2.8L V6 — OHV 2.0L I4 — OHV 1.9L I4 — SOHC 2.2L I4 — OHV |
| Trims | Base Extended Cab Pickup 2-Door · Base Standard Cab Pickup 2-Door · Sierra Classic Extended Cab Pickup 2-Door · High Sierra Standard Cab Pickup 2-Door · Base Cab & Chassis 2-Door · High Sierra Extended Cab Pickup 2-Door +1 |
| Other 1984 S15 variants | S15 Jimmy → |
| Federal record | 1 recall · 0 complaints · 0 technical service bulletins (refreshed 2026-08-21) |
02 / InsideSample pages from the 1984 S15 manual






03 / ContentsSections in the manual
- Quick Lookups 55
- Engine Performance 918
- Accessories & Equipment 101
- General Information 1,523
- Body & Frame 27
- Heating, Ventilation & A/C (HVAC) 195
- Brakes 101
- Maintenance 53
- Drivelines & Axles 73
- Steering 135
- Electrical 104
- Suspension 48
- Engine Mechanical 251
- Transmission 323
- Brake Hose-to-Caliper 30
- Caliper Mounting Bolts 35
- Hydraulic Line-to-Brake Hose 13
- Support Plate-to-Knuckle Bolts 12
- Brake Line-to-Caliper 32
- Support Key Retaining Screw 18
04 / Known issuesRecalls on federal record for the 1984 S15
- 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 0 complaints and GMC has issued 0 technical service bulletins for the 1984 S15. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.
FAQQuestions about the 1984 S15 manual
Is this manual specific to the 1984 S15?
Yes. It is the OEM manual matched to the 1984 model year, covering the 2.8L V6 and 2.0L I4 and 1.9L I4 and 2.2L I4 across the Base Extended Cab Pickup 2-Door, Base Standard Cab Pickup 2-Door, Sierra Classic Extended Cab Pickup 2-Door, High Sierra Standard Cab Pickup 2-Door, Base Cab & Chassis 2-Door, High Sierra Extended Cab Pickup 2-Door, Sierra Classic Standard Cab Pickup 2-Door trims. Specifications and procedure sequences are the ones GMC published for this year.
What 1984 S15 problems does it help with?
1 recall is on federal record for the 1984 S15, covering seats. The manual carries the manufacturer's diagnostic and repair procedures for those systems; the recall repairs themselves are done free by GMC dealers.
Does it include 1984 S15 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 S15 years and 1984 GMC models
1990 S15 · 1989 S15 · 1988 S15 · 1987 S15 · 1986 S15 · 1985 S15 · 1983 S15 · 1982 S15 · all 9 years
1984 GMC Astro · 1984 GMC B6000 · 1984 GMC Brigadier · 1984 GMC C1500 · 1984 GMC C1500 Suburban · 1984 GMC C2500 · 1984 GMC C2500 Suburban · 1984 GMC C3500 · 1984 GMC C5000 · 1984 GMC C6000 · 1984 GMC C7000 · 1984 GMC Caballero · every 1984 model