1991 Chevrolet Corvette Service & Repair Manual Software

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Basic Information Identification Make: Chevrolet Model: Corvette Year: 1991 Generation: C4 Production Platform: C4 Introduction Market Market Position: Essential DIY and professional repair resource for owners of the 1991 Chevrolet...

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Type: Car

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Sku: 46850

Tags: 1991 Car Cars Chevrolet Corvette

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Description

Basic Information
Identification
Make:	Chevrolet
Model:	Corvette
Year:	1991
Generation:	C4
Production Platform:	C4

Introduction
Market
Market Position:	Essential DIY and professional repair resource for owners of the 1991 Chevrolet Corvette, offering a convenient digital alternative to outdated print manuals.
Competition
Competitive Analysis:	Superior to older printed manuals in terms of accessibility, searchability, and cost-effectiveness. Provides licensed OE data unlike unofficial or generic repair guides.
Features
Key Features:	Officially licensed, factory-derived data, instant online access, broad system coverage, diagnostic and repair focus, convenient for all devices with internet access.

Manual Details
Coverage
Coverage Areas:	Comprehensive service and repair information for the 1991 Chevrolet Corvette.
Format
Manual Type:	Service and Repair Manual Software
Language:	English
Format:	PDF Download (Licensed Software)
Access Duration:	1 Year Access (Renewable)

Manual Coverage
Systems
Systems Covered:	Engine, Drivetrain, Transmission, Suspension, Steering, Brakes, Electrical System, HVAC, Body, Fuel System, Exhaust System, Cooling System, Ignition System, Emission Control Systems.
Procedures
Procedures Included:	Diagnostic procedures, troubleshooting guides, routine maintenance, repair procedures, component removal and installation, wiring diagrams, specifications, torque values, adjustments.
Depth
Technical Depth:	Factory-derived OE materials, suitable for DIYers and professional technicians. Covers basic to advanced repair and diagnostic tasks.

Manual Specifications
File
File Format:	PDF
Quality
Print Quality:	High-resolution, digitally rendered from OE sources. Searchable text.
Binding
Binding Type:	N/A (Digital Download)
Paper
Paper Type:	N/A (Digital Download)

Engine Specifications
Primary
Primary Engine:	5.7L V8 (LT1)
Performance
Horsepower:	300 hp @ 5000 rpm
Torque:	330 lb-ft @ 4000 rpm
Fuel System
Fuel System:	Sequential Fuel Injection (SFI)
Engine Type
Engine Layout:	V8, Small Block
Displacement:	350 cubic inches (5.7 Liters)
Bore X Stroke:	4.00 in x 3.48 in (101.6 mm x 88.4 mm)
Compression Ratio:	10.5:1
Valvetrain:	Overhead Valve (OHV), 2 valves per cylinder
Fuel Type:	Unleaded Premium (91 Octane or higher recommended)

Transmission
Standard
Standard Transmission:	4-speed Automatic (700R4 / 4L60)
Optional
Optional Transmission:	6-speed Manual (ZF S6-40)
Features
Transmission Features:	Lock-up torque converter (automatic), overdrive gear, electronic controls on 4L60. Close-ratio gearing and robust construction for manual.
Fluid
Automatic Transmission Fluid:	Dexron-III (or equivalent)
Manual Transmission Fluid:	GM Synchromesh Transmission Fluid or equivalent SAE 75W-90 GL-4/GL-5 gear oil.

Dimensions
Exterior
Length:	179.0 in (4547 mm)
Width:	71.0 in (1803 mm)
Height:	46.3 in (1176 mm)
Wheelbase:	96.2 in (2443 mm)
Weights
Curb Weight:	Approx. 3300-3400 lbs (1497-1542 kg)
Gross Vehicle Weight Rating:	Approx. 4200 lbs (1905 kg)
Interior
Passenger Volume:	Approx. 47.4 cu ft (1.34 m³)
Cargo
Cargo Volume:	Approx. 15.5 cu ft (0.44 m³) (Rear Hatch)

Safety Features
Ratings
NHTSA Front Impact Rating:	Not rated (vehicle design predates standardized NHTSA testing of this era)
Features
Active Safety Features:	Anti-lock Braking System (ABS), Power-assisted steering.
Passive Safety Features:	Seat belts, energy-absorbing steering column, reinforced windshield frame.

Technology Features
Infotainment
Infotainment System:	Analog gauges with digital driver information center (DIC). Limited factory infotainment; typically includes AM/FM stereo with cassette player, optional CD player.
Driver Assistance
Driver Assistance Features:	ABS (Anti-lock Braking System) is the primary electronic driver assistance feature.
Connectivity
Connectivity Features:	N/A (No factory connectivity features such as Bluetooth or USB ports)

Maintenance
Intervals
Oil Change Interval:	Every 5,000 miles or 6 months, whichever comes first (using synthetic blend or full synthetic oil).
Air Filter Replacement Interval:	Every 15,000 - 30,000 miles or as needed based on driving conditions.
Spark Plug Replacement Interval:	Typically 30,000 - 60,000 miles, depending on plug type.
Fluid
Engine Oil Capacity:	5 Quarts (4.7 Liters) with filter (5W-30 recommended for most conditions).
Coolant Capacity:	Approx. 14.2 Quarts (13.4 Liters) (50/50 mix of Dex-Cool or equivalent coolant and distilled water).
Brake Fluid Type:	DOT 3
Known Issues
Common Issues:	C4 specific issues can include: aging rubber bushings, potential for dashboard cracks due to UV exposure, HVAC blower motor failures, electrical gremlins in aging wiring harnesses, early C4s experienced some opti-spark distributor failures (though the 1991 LT1 revised this somewhat). The manual addresses these proactively.

Vehicle History
Brand
Brand Heritage:	Chevrolet, established in 1911, has a long history of performance and innovation in the automotive industry.
Model
Model Evolution:	The Corvette, America's Sports Car, entered its fourth generation (C4) in 1984, characterized by a modern, angular design and significant performance upgrades. The 1991 model year saw the introduction of the LT1 engine.
Production
Production Years C4:	1984-1996
Manufacturing Location:	Bowling Green, Kentucky, USA

Awards & Recognition
Recognitions
Model Recognitions:	The C4 Corvette, particularly with the advent of the LT1 engine, was well-regarded for its performance and handling in its era, often competing with European sports cars.