The service and repair manual for the 1990 GMC P3500 — 3.9L I4 and 7.4L V8 and 6.2L V8 and 4.3L V6 and 5.7L V8 engines, 3 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 | 1990 |
|---|---|
| Engines | 3.9L I4 — OHV, turbocharged 7.4L V8 — OHV 6.2L V8 — OHV 4.3L V6 — OHV 5.7L V8 — OHV |
| Trims | Value Van Delivery Van 2-Door · Base Stripped Chassis · Base Motorhome - Stripped Chassis |
| Federal record | 1 recall · 0 complaints · 1 technical service bulletins (refreshed 2026-08-21) |
02 / InsideSample pages from the 1990 P3500 manual






03 / ContentsSections in the manual
- Quick Lookups 63
- Engine Performance 812
- Accessories & Equipment 211
- General Information 1,523
- Body & Frame 20
- Heating, Ventilation & A/C (HVAC) 103
- Brakes 111
- Steering 107
- Drivelines & Axles 103
- Suspension 86
- Electrical 224
- Transmission 148
- Engine Mechanical 387
- Booster-to-Cowl Nut 20
- Bracket Nut 110
- Housing Cover Bolts 22
- Master Cylinder-to-Booster Nut 20
- Power Steering-to-Booster Line 25
04 / Known issuesRecalls on federal record for the 1990 P3500
- Equipment · 07E088000This condition may cause inadequate sealing and loss of engine oil, possibly resulting in a fire.
Owners have filed 0 complaints and GMC has issued 1 technical service bulletins for the 1990 P3500. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.
FAQQuestions about the 1990 P3500 manual
Is this manual specific to the 1990 P3500?
Yes. It is the OEM manual matched to the 1990 model year, covering the 3.9L I4 and 7.4L V8 and 6.2L V8 and 4.3L V6 and 5.7L V8 across the Value Van Delivery Van 2-Door, Base Stripped Chassis, Base Motorhome - Stripped Chassis trims. Specifications and procedure sequences are the ones GMC published for this year.
What 1990 P3500 problems does it help with?
1 recall is on federal record for the 1990 P3500, covering equipment. 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 1990 P3500 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 P3500 years and 1990 GMC models
1996 P3500 · 1995 P3500 · 1994 P3500 · 1993 P3500 · 1992 P3500 · 1991 P3500 · 1989 P3500 · 1988 P3500 · 1987 P3500 · 1986 P3500 · 1985 P3500 · 1984 P3500 · all 18 years
1990 GMC B6000 · 1990 GMC C1500 · 1990 GMC C1500 Suburban · 1990 GMC C2500 · 1990 GMC C2500 Suburban · 1990 GMC C3500 · 1990 GMC C5000 · 1990 GMC C5000 Topkick · 1990 GMC C6000 · 1990 GMC C6000 Topkick · 1990 GMC C7000 · 1990 GMC C7000 Topkick · every 1990 model