The service and repair manual for the 1990 Pontiac Grand Prix — 2.3L I4 and 3.1L V6 and 3.1L V6 engines, 5 trims. Matched to this exact model year, so the specifications and sequences are the ones Pontiac published for your car, not figures carried over from a neighbouring year.
01 / FitmentWhat this manual covers
| Model year | 1990 |
|---|---|
| Engines | 2.3L I4 — DOHC 3.1L V6 — OHV 3.1L V6 — OHV, turbocharged |
| Trims | LE Sedan 4-Door · SE Coupe 2-Door · STE Sedan 4-Door · Mclaren Coupe 2-Door · LE Coupe 2-Door |
| Federal record | 1 recall · 249 complaints · 6 technical service bulletins (refreshed 2026-08-21) |
02 / InsideSample pages from the 1990 Grand Prix manual
03 / ContentsSections in the manual
- Quick Lookups 70
- Engine Performance 1,217
- Accessories & Equipment 253
- General Information 1,523
- Body & Frame 119
- Heating, Ventilation & A/C (HVAC) 174
- Brakes 249
- Maintenance 68
- Drivelines & Axles 19
- Steering 66
- Electrical 169
- Suspension 67
- Engine Mechanical 366
- Transmission 462
04 / Known issuesRecalls on federal record for the 1990 Grand Prix
- Wheels · 95V115000If wheel separation occurs while the vehicle is in motion, loss of steering and brake control of the.
Owners have filed 249 complaints and Pontiac has issued 6 technical service bulletins for the 1990 Grand Prix. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.
FAQQuestions about the 1990 Grand Prix manual
Is this manual specific to the 1990 Grand Prix?
Yes. It is the OEM manual matched to the 1990 model year, covering the 2.3L I4 and 3.1L V6 and 3.1L V6 across the LE Sedan 4-Door, SE Coupe 2-Door, STE Sedan 4-Door, Mclaren Coupe 2-Door, LE Coupe 2-Door trims. Specifications and procedure sequences are the ones Pontiac published for this year.
What 1990 Grand Prix problems does it help with?
1 recall is on federal record for the 1990 Grand Prix, covering wheels. The manual carries the manufacturer's diagnostic and repair procedures for those systems; the recall repairs themselves are done free by Pontiac dealers.
Does it include 1990 Grand Prix 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 Grand Prix years and 1990 Pontiac models
1996 Grand Prix · 1995 Grand Prix · 1994 Grand Prix · 1993 Grand Prix · 1992 Grand Prix · 1991 Grand Prix · 1989 Grand Prix · 1988 Grand Prix · 1987 Grand Prix · 1986 Grand Prix · 1985 Grand Prix · 1984 Grand Prix · all 27 years
1990 Pontiac 6000 · 1990 Pontiac Bonneville · 1990 Pontiac Firebird · 1990 Pontiac Firefly · 1990 Pontiac Grand Am · 1990 Pontiac LeMans · 1990 Pontiac Optima · 1990 Pontiac Sunbird · 1990 Pontiac Tempest · 1990 Pontiac Trans Sport · every 1990 model