The service and repair manual for the 1989 Mitsubishi Sigma — the 3.0L V6 engine, 1 trim. Matched to this exact model year, so the specifications and sequences are the ones Mitsubishi published for your car, not figures carried over from a neighbouring year.
01 / FitmentWhat this manual covers
| Model year | 1989 |
|---|---|
| Engines | 3.0L V6 — 181 cu in, SOHC |
| Trims | Base Sedan 4-Door |
| Federal record | 1 recall · 1 complaints · 3 technical service bulletins (refreshed 2026-08-21) |
02 / InsideSample pages from the 1989 Sigma manual
03 / ContentsSections in the manual
- Quick Lookups 67
- General Information 1,403
- Accessories & Equipment 58
- Heating, Ventilation & A/C (HVAC) 198
- Brakes 131
- Maintenance 67
- Drivelines & Axles 19
- Steering 89
- Electrical 116
- Suspension 116
- Engine Mechanical 146
- Transmission 149
- Engine Performance 464
- Tighten bearing to 14
04 / Known issuesRecalls on federal record for the 1989 Sigma
- Seat Belts — front › buckle assembly · 95V103004The safety belts would not provide adequate protection to an occupant in a vehicle crash.
Owners have filed 1 complaints and Mitsubishi has issued 3 technical service bulletins for the 1989 Sigma. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.
FAQQuestions about the 1989 Sigma manual
Is this manual specific to the 1989 Sigma?
Yes. It is the OEM manual matched to the 1989 model year, covering the 3.0L V6 across the Base Sedan 4-Door trims. Specifications and procedure sequences are the ones Mitsubishi published for this year.
What 1989 Sigma problems does it help with?
1 recall is on federal record for the 1989 Sigma, covering seat belts. The manual carries the manufacturer's diagnostic and repair procedures for those systems; the recall repairs themselves are done free by Mitsubishi dealers.
Does it include 1989 Sigma wiring diagrams?
Yes — the complete wiring diagrams for the 1989 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 Sigma years and 1989 Mitsubishi models
1989 Mitsubishi Galant · 1989 Mitsubishi Mighty Max · 1989 Mitsubishi Mirage · 1989 Mitsubishi Montero · 1989 Mitsubishi Precis · 1989 Mitsubishi Starion · 1989 Mitsubishi Van · every 1989 model