Description
Factory Honda Civic Workshop Manual (1988-1991)
This factory-level repair manual covers the complete fourth-generation Honda Civic lineup sold in the United States from 1988 through 1991, giving DIYers and professional technicians everything needed to diagnose, service, and rebuild these popular compacts.
Powertrain & Drive Coverage
| Component | Variants Covered |
|---|---|
| Petrol | 1.5L D15B1, 1.5L D15B2 SOHC; 1.6L D16A6 SOHC; 1.6L B16A DOHC VTEC (Si) |
| Diesel | N/A |
| Transmissions | 5-speed manual, 4-speed automatic |
| Drive | FWD |
| Model Years | 1988, 1989, 1990, 1991 |
| Badge Twins | Honda CRX, Honda CRX Si (EC/ED/EE/EF chassis) |
Common Civic Repairs Covered
| System | Procedures |
|---|---|
| Distributor & Ignition | Distributor O-ring replacement and ignition timing adjustment – a frequent leak point on D-series engines |
| Cooling System | Thermostat and radiator hose replacement, coolant flush, and water pump service |
| Suspension | Front strut cartridge replacement, lower control arm bushing service, and wheel bearing inspection |
| Fuel System | Fuel injector cleaning, fuel pressure regulator testing, and main relay diagnosis – a known cold-start failure on late-1980s Civics |
Format & Delivery
PDF. Instant download; lifetime re-downloads.
Frequently Asked Questions
Why does my 1988-1991 Civic fail to start when hot – and does this manual cover it?
Hot no-start and intermittent stalling on these Civics is classically caused by a failing main relay, which cuts fuel pump power when the solder joints inside overheat. This manual covers the complete fuel and electrical systems, including fuel pump circuit diagnosis, relay location, and testing procedures so you can confirm and resolve the fault.
Which chassis codes and body styles are included?
All EC, ED, EE, and EF platform variants are covered – including the 3-door hatchback, 4-door sedan, and the sporty 2-door CRX coupe. DX, LX, and Si trim levels are all addressed within the relevant powertrain and body sections.
Are complete wiring diagrams included for the electrical system?
Yes. The manual contains detailed circuit diagrams for charging, starting, ignition, fuel injection, exterior lighting, instrumentation, and accessory circuits. Each diagram identifies connector locations, wire colors, and component positions to speed up electrical fault-finding.
What format is the manual?
The manual is delivered as a fully searchable PDF compatible with Windows, Mac, Linux, Android, and iOS devices. Individual pages or complete chapters can be printed for use in the shop.
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