The service and repair manual for the 1998 GMC Sonoma — 2.2L I4 and 4.3L V6 engines, 7 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 | 1998 |
|---|---|
| Engines | 2.2L I4 — 134 cu in, OHV 4.3L V6 — OHV |
| Trims | SLE Extended Cab Pickup 3-Door · SLS Extended Cab Pickup 3-Door · SLS Extended Cab Pickup 2-Door · SLE Extended Cab Pickup 2-Door · SL Standard Cab Pickup 2-Door · SLS Standard Cab Pickup 2-Door +1 |
| Federal record | 4 recalls · 202 complaints · 55 technical service bulletins (refreshed 2026-08-21) |
02 / InsideSample pages from the 1998 Sonoma manual
03 / ContentsSections in the manual
- Quick Lookups 103
- General Information 1,688
- Accessories & Equipment 460
- Heating, Ventilation & A/C (HVAC) 163
- Body & Frame 194
- Maintenance 46
- Brakes 359
- Restraints 152
- Drivelines & Axles 102
- Steering 125
- Electrical 243
- Suspension 85
- Engine Mechanical 178
- Transmission 215
- Engine Performance 1,136
- Axle Nut/Hub Nut 103
- Radiator Cap Pressure 15
04 / Known issuesRecalls on federal record for the 1998 Sonoma
- Electrical System — wiring › front underhood · 97V208001The clip material on the exhaust manifold can ignite and subsequently ignite other combustible compo.
- Service Brakes, Hydraulic — foundation components › hoses, lines/piping, a · 97V218000Partial loss of braking at a time when minimum stopping distance was required could result in a vehi.
- Fuel System, Other — storage › tank assembly › pressure relief devices · 07E021000Fuel may leak, possibly resulting in a fire.
- Exterior Lighting · 00V220000These vehicles do not comply with requirements of fmvss no. 108.
Owners have filed 202 complaints and GMC has issued 55 technical service bulletins for the 1998 Sonoma. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.
FAQQuestions about the 1998 Sonoma manual
Is this manual specific to the 1998 Sonoma?
Yes. It is the OEM manual matched to the 1998 model year, covering the 2.2L I4 and 4.3L V6 across the SLE Extended Cab Pickup 3-Door, SLS Extended Cab Pickup 3-Door, SLS Extended Cab Pickup 2-Door, SLE Extended Cab Pickup 2-Door, SL Standard Cab Pickup 2-Door, SLS Standard Cab Pickup 2-Door, SLE Standard Cab Pickup 2-Door trims. Specifications and procedure sequences are the ones GMC published for this year.
What 1998 Sonoma problems does it help with?
4 recalls are on federal record for the 1998 Sonoma, covering electrical system, service brakes, hydraulic, fuel system, other. 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 1998 Sonoma wiring diagrams?
Yes — the complete wiring diagrams for the 1998 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 Sonoma years and 1998 GMC models
2004 Sonoma · 2003 Sonoma · 2002 Sonoma · 2001 Sonoma · 2000 Sonoma · 1999 Sonoma · 1997 Sonoma · 1996 Sonoma · 1995 Sonoma · 1994 Sonoma · 1993 Sonoma · 1992 Sonoma · all 14 years
1998 GMC B7 · 1998 GMC C1500 · 1998 GMC C1500 Suburban · 1998 GMC C2500 · 1998 GMC C2500 Suburban · 1998 GMC C3500 · 1998 GMC C3500HD · 1998 GMC C6500 Topkick · 1998 GMC C7500 Topkick · 1998 GMC Jimmy · 1998 GMC K1500 · 1998 GMC K1500 Suburban · every 1998 model