1988 Chevrolet G20 Service & Repair Manual

← 1987All G20 years1989 →

The service and repair manual for the 1988 Chevrolet G20 — 5.0L 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 Chevrolet published for your car, not figures carried over from a neighbouring year.

01 / FitmentWhat this manual covers

Model year1988
Engines
5.0L V8 — OHV
6.2L V8 — OHV
4.3L V6 — OHV
5.7L V8 — OHV
TrimsSportvan Extended Passenger Van 3-Door · Beauville Extended Passenger Van 3-Door · Chevy Van Standard Cargo Van 3-Door · Chevy Van Extended Cargo Van 3-Door
Federal record2 recalls · 11 complaints · 0 technical service bulletins (refreshed 2026-08-21)

02 / InsideSample pages from the 1988 G20 manual

1988 Chevrolet G20 service manual page 11988 Chevrolet G20 service manual page 21988 Chevrolet G20 service manual page 31988 Chevrolet G20 service manual page 41988 Chevrolet G20 service manual page 51988 Chevrolet G20 service manual page 6

03 / ContentsSections in the manual

  • Quick Lookups 76
  • Engine Performance 955
  • Accessories & Equipment 127
  • General Information 1,523
  • Body & Frame 28
  • Heating, Ventilation & A/C (HVAC) 150
  • Brakes 132
  • Maintenance 75
  • Drivelines & Axles 97
  • Steering 122
  • Electrical 147
  • Suspension 52
  • Engine Mechanical 400
  • Transmission 476
  • Operating Voltage 12
  • Current Draw (Stall, Cold) 12
  • Speed 31

04 / Known issuesRecalls on federal record for the 1988 G20

  1. Equipment · 07E088000
    This condition may cause inadequate sealing and loss of engine oil, possibly resulting in.
  2. Fuel System, Gasoline · 06E043000
    This condition may cause an inadequate seal at the connection, potentially leading to a fu.

Owners have filed 11 complaints and Chevrolet has issued 0 technical service bulletins for the 1988 G20. The manual carries the manufacturer's diagnostic and repair procedures behind these systems.

FAQQuestions about the 1988 G20 manual

Is this manual specific to the 1988 G20?

Yes. It is the OEM manual matched to the 1988 model year, covering the 5.0L V8 and 6.2L V8 and 4.3L V6 and 5.7L V8 across the Sportvan Extended Passenger Van 3-Door, Beauville Extended Passenger Van 3-Door, Chevy Van Standard Cargo Van 3-Door, Chevy Van Extended Cargo Van 3-Door trims. Specifications and procedure sequences are the ones Chevrolet published for this year.

What 1988 G20 problems does it help with?

2 recalls are on federal record for the 1988 G20, covering equipment, fuel system, gasoline. The manual carries the manufacturer's diagnostic and repair procedures for those systems; the recall repairs themselves are done free by Chevrolet dealers.

Does it include 1988 G20 wiring diagrams?

Yes — the complete wiring diagrams for the 1988 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 G20 years and 1988 Chevrolet models

1994 G20 · 1993 G20 · 1992 G20 · 1991 G20 · 1990 G20 · 1989 G20 · 1987 G20 · 1986 G20 · 1985 G20 · 1984 G20 · 1983 G20 · 1982 G20 · all 14 years

1988 Chevrolet Astro · 1988 Chevrolet B60 · 1988 Chevrolet Beretta · 1988 Chevrolet Blazer · 1988 Chevrolet C15 · 1988 Chevrolet C1500 · 1988 Chevrolet C2500 · 1988 Chevrolet C35 · 1988 Chevrolet C3500 · 1988 Chevrolet C50 · 1988 Chevrolet C60 · 1988 Chevrolet C70 · every 1988 model