Target Audience:
Corvette owners, DIY enthusiasts, independent repair shops, professional mechanics
Value Proposition:
Provides factory-level information for comprehensive vehicle maintenance and repair at a fraction of the cost of dealership services.
Content Quality:
Authored by GM/Chevrolet, ensuring accuracy and completeness.
Accessibility:
Instant download for immediate use on various devices.
Primary Coverage:
Service, Repair, Troubleshooting, Maintenance
Estimated Pages:
Hundreds (exact count not specified, but described as very detailed)
Type:
Factory Service Manual / Workshop Manual
Primary Language:
English
File Format:
PDF (Downloadable)
Powertrain:
Engine mechanical, fuel system, ignition system, exhaust system, cooling system, lubrication system
Transmission:
Automatic transmission (e.g., 700R4/4L60) repair, diagnostics, fluid service
Chassis:
Suspension (front and rear independent suspension), steering system, brake system (including ABS if equipped)
Electrical System:
Wiring diagrams, charging system, starting system, lighting, instrumentation, power accessories, HVAC electrical controls, diagnostic codes
Body & Interior:
Body panels, doors, glass, interior trim, seats, HVAC system mechanical components, climate control
Diagnostic:
Troubleshooting guides, diagnostic procedures, fault code identification and resolution
Routine Maintenance:
Oil changes, filter replacements, fluid checks and top-offs, spark plug replacement, belt inspections and replacement
Component Repair:
Engine rebuild procedures, transmission overhaul, brake caliper/rotor replacement, suspension component replacement, steering rack repair
Electrical Repair:
Component testing, wiring harness repair, sensor replacement, actuator testing, module diagnostics
Troubleshooting:
Step-by-step diagnostic flowcharts for common and uncommon issues
Specifications:
Torque specifications, clearances, diagnostic values
Depth:
Comprehensive (covers all aspects from basic maintenance to complete overhauls and advanced diagnostics)
Detail Level:
High (detailed photos, diagrams, exploded views, step-by-step instructions)
Quality:
High-quality PDF (printable, searchable text assumed)
Feature:
Printable (single pages or entire manual)
Format Advantage:
Digital Download (no physical binding, instantly accessible)
Format Advantage:
N/A (Digital)
Licensing:
Unlimited usage on multiple devices, lifetime access, no expiry
Engine Type:
5.7L V8 (350ci) Tuned Port Injection (TPI)
Bore X Stroke:
4.00 in x 3.48 in (101.6 mm x 88.4 mm)
Horsepower:
230 hp @ 4000 rpm (approximate)
Torque:
330 lb-ft @ 3200 rpm (approximate)
Induction:
Tuned Port Injection (TPI)
Fuel Type:
Unleaded gasoline (87 octane or higher recommended)
ECM Type:
Delco-Remy ECM (Electronic Control Module)
Type:
4-speed Automatic (700R4 / 4L60)
Type:
4-speed Manual (ZF S6-40 'Corvette' transmission - less common for 1989, typically 1990+)
Overdrive:
Yes (4th gear)
Automatic Transmission Fluid:
Dexron-III (or equivalent)
NHTSA Rollover Resistance:
N/A for this era's reporting standards
Braking System:
Four-wheel disc brakes (Vented front/rear), optional Anti-lock Braking System (ABS)
Steering:
Power-assisted rack and pinion
Airbags:
Driver-side airbag (standard from 1990, potentially optional or introduced late in 1989 C4 models but generally not standard on the 1989 model year itself. Check VIN for certainty.)
Seat Belts:
Three-point inertia reel seat belts
Structural Integrity:
Integral frame and body construction
Audio System:
Factory AM/FM stereo with cassette player, optional CD player.
Instrumentation:
Digital instrument cluster (speedometer, tachometer, gauges) with driver information center.
ABS:
Anti-lock Braking System (ABS) available as an option.
Diagnostics:
On-board diagnostics (OBD) system with diagnostic trouble codes (DTCs) accessible via specific procedures and tools covered in the manual.
Oil Change Interval:
Every 7,500 miles or 12 months, whichever comes first (using synthetic blend or full synthetic oil)
Transmission Fluid Change:
Every 30,000 - 45,000 miles (depending on driving conditions)
Coolant Flush:
Every 30,000 - 50,000 miles
Spark Plug Replacement:
Every 60,000 - 100,000 miles (depending on plug type; platinum/iridium recommended)
Engine Oil:
SAE 5W-30 (API SG or higher service classification recommended)
Coolant:
GM-specified 50/50 ethylene glycol coolant (e.g., AC Delco 10-2010)
Common Problems:
Fuel injector issues (TPI specific), aging electrical connectors, potential for AC system leaks, speedometer gear wear, catalytic converter failure.
Oil Filter Example:
AC Delco PF44 or equivalent (e.g., Fram PH8A, Wix 51515)
Air Filter Example:
AC Delco A3172 or equivalent
Legacy:
The Chevrolet Corvette represents America's sports car, with a rich history of performance and innovation since its introduction in 1953.
C4 Generation Details:
The C4 generation (1984-1996) was a significant departure from the C3, featuring a more modern chassis, updated aerodynamics, and digital instrumentation. 1989 saw refinements to the TPI system and suspension.
Production Years For Model:
1984-1996
Production Location:
Bowling Green, Kentucky, USA
