The service and repair manual for the 1991 GMC P3500 — 3.9L I4 and 7.4L V8 and 6.2L V8 and 4.3L V6 and 5.7L V8 engines, 4 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 | 1991 |
|---|---|
| Engines | 3.9L I4 — OHV, turbocharged 7.4L V8 — OHV 6.2L V8 — OHV 4.3L V6 — OHV 5.7L V8 — OHV |
| Trims | Base Standard Cargo Van 2-Door · Base Stripped Chassis · Base Motorhome - Stripped Chassis · Base Cab & Chassis 2-Door |
| Federal record | 1 recall · 0 complaints · 1 technical service bulletins (refreshed 2026-08-21) |
02 / InsideSample pages from the 1991 P3500 manual
03 / ContentsSections in the manual
- Quick Lookups 73
- Engine Performance 1,057
- Accessories & Equipment 145
- General Information 1,523
- Body & Frame 66
- Heating, Ventilation & A/C (HVAC) 171
- Brakes 131
- Steering 125
- Drivelines & Axles 85
- Suspension 87
- Electrical 148
- Transmission 615
- Engine Mechanical 374
- Steering Column Support Bracket 22
- Steering Wheel Retaining Nut 30
- Ignition Switch-To-Column Screws 35
- Lock Cylinder Retaining Screw 22
- Turn Signal Switch Screws 35
04 / Known issuesRecalls on federal record for the 1991 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 1991 P3500. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.
FAQQuestions about the 1991 P3500 manual
Is this manual specific to the 1991 P3500?
Yes. It is the OEM manual matched to the 1991 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 Base Standard Cargo Van 2-Door, Base Stripped Chassis, Base Motorhome - Stripped Chassis, Base Cab & Chassis 2-Door trims. Specifications and procedure sequences are the ones GMC published for this year.
What 1991 P3500 problems does it help with?
1 recall is on federal record for the 1991 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 1991 P3500 wiring diagrams?
Yes — the complete wiring diagrams for the 1991 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 1991 GMC models
1997 P3500 · 1996 P3500 · 1995 P3500 · 1994 P3500 · 1993 P3500 · 1992 P3500 · 1990 P3500 · 1989 P3500 · 1988 P3500 · 1987 P3500 · 1986 P3500 · 1985 P3500 · all 18 years
1991 GMC B6000 · 1991 GMC C1500 · 1991 GMC C1500 Suburban · 1991 GMC C2500 · 1991 GMC C2500 Suburban · 1991 GMC C3500 · 1991 GMC C3500HD · 1991 GMC C5000 Topkick · 1991 GMC C6000 Topkick · 1991 GMC C7000 Topkick · 1991 GMC G1500 · 1991 GMC G2500 · every 1991 model