The service and repair manual for the 1990 Mitsubishi Mighty Max — 3.0L V6 and 2.4L I4 engines, 3 trims. 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 | 1990 |
|---|---|
| Engines | 3.0L V6 — 181 cu in, SOHC 2.4L I4 — 143 cu in, SOHC |
| Trims | Base Extended Cab Pickup 2-Door · Base Standard Cab Pickup 2-Door · 1 Ton Standard Cab Pickup 2-Door |
| Federal record | 1 recall · 8 complaints · 2 technical service bulletins (refreshed 2026-08-21) |
02 / InsideSample pages from the 1990 Mighty Max manual
03 / ContentsSections in the manual
- Quick Lookups 62
- Engine Performance 607
- Accessories & Equipment 91
- General Information 1,403
- Body & Frame 15
- Heating, Ventilation & A/C (HVAC) 162
- Brakes 65
- Maintenance 76
- Drivelines & Axles 69
- Steering 93
- Electrical 107
- Suspension 53
- Engine Mechanical 180
- Transmission 63
04 / Known issuesRecalls on federal record for the 1990 Mighty Max
- Seat Belts — front › buckle assembly · 95V103004The safety belts would not provide adequate protection to an occupant in a vehicle crash.
Owners have filed 8 complaints and Mitsubishi has issued 2 technical service bulletins for the 1990 Mighty Max. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.
FAQQuestions about the 1990 Mighty Max manual
Is this manual specific to the 1990 Mighty Max?
Yes. It is the OEM manual matched to the 1990 model year, covering the 3.0L V6 and 2.4L I4 across the Base Extended Cab Pickup 2-Door, Base Standard Cab Pickup 2-Door, 1 Ton Standard Cab Pickup 2-Door trims. Specifications and procedure sequences are the ones Mitsubishi published for this year.
What 1990 Mighty Max problems does it help with?
1 recall is on federal record for the 1990 Mighty Max, 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 1990 Mighty Max wiring diagrams?
Yes — the complete wiring diagrams for the 1990 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 Mighty Max years and 1990 Mitsubishi models
1996 Mighty Max · 1995 Mighty Max · 1994 Mighty Max · 1993 Mighty Max · 1992 Mighty Max · 1991 Mighty Max · 1989 Mighty Max · 1988 Mighty Max · 1987 Mighty Max · 1986 Mighty Max · 1985 Mighty Max · 1984 Mighty Max · all 14 years
1990 Mitsubishi Eclipse · 1990 Mitsubishi Galant · 1990 Mitsubishi Mirage · 1990 Mitsubishi Montero · 1990 Mitsubishi Precis · 1990 Mitsubishi Sigma · 1990 Mitsubishi Van · every 1990 model