1991 Chevrolet Corvette Service and Repair Manual

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Factory-Grade Data

1991 Chevrolet Corvette service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.

Designed for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and reference wiring diagrams and system sections quickly while you work.

What’s included

  • Step-by-step repair procedures and service information
  • Specifications and reference data (where provided)
  • Wiring diagrams and electrical sections
  • Powertrain, brakes, steering, suspension, HVAC and more

Trims covered

  • Base Convertible 2-Door
  • ZR-1 Hatchback 2-Door
  • Base Hatchback 2-Door

Engines covered

  • 5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated
  • 5.7L 350Cu. In. V8 GAS DOHC Naturally Aspirated

Index / Table of contents

  • Body
  • Brakes
  • Chassis Electrical
  • Driveline
  • Engine Cooling
  • Engine Electrical
  • Engine Mechanical
  • Engine Performance & Emission Controls
  • Fuel System
  • General Information & Identification
  • Heating, Ventilation, & Air Conditioning
  • Hybrid & Electric Vehicle Systems
  • Steering
  • Suspension
  • Transmission, Clutch, & Transfer Case
  • Wiring Diagrams

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Vehicle Safety Data

1991 Chevrolet Corvette Recalls & Complaints

NHTSA #07E08800024/10/2007Component: EQUIPMENT

CERTAIN HONEYWELL FRAM RACING BRAND HP4 AND HP8 OIL FILTERS THAT WERE MANUFACTURED FROM MAY 25, 2006, THROUGH SEPTEMBER 14, 2007, AND SOLD FOR USE AS REPLACEMENT EQUIPMENT FOR VEHI

Consequence

THIS CONDITION MAY CAUSE INADEQUATE SEALING AND LOSS OF ENGINE OIL, POSSIBLY RESULTING IN

Remedy

HONEYWELL WILL REPLACE THE AFFECTED OIL FILTERS FREE OF CHARGE. THE RECALL BEGAN DURING N

NHTSA #06E04300019/05/2006Component: FUEL SYSTEM, GASOLINE

CERTAIN REPLACEMENT FUEL FILTERS, FRAM BRAND NAME P/N G3727, WITH DATE CODES X52911 THROUGH X60801 SEQUENTIALLY OR X600141 AND A MEXICO COUNTRY OR ORIGIN MARKING ON THE FUEL FILTER

Consequence

THIS CONDITION MAY CAUSE AN INADEQUATE SEAL AT THE CONNECTION, POTENTIALLY LEADING TO A FU

Remedy

HONEYWELL WILL NOTIFY OWNERS AND REPLACE THE FUEL FILTERS FREE OF CHARGE. THE RECALL BEGA

NHTSA #91V14300004/09/1991Component: SEAT BELTS:FRONT:ANCHORAGE

UNDER CERTAIN VEHICLE OPERATIONS AND OCCUPANT USAGE CONDITIONS, THE SAFETY BELTS CAN LOCKUP OR JAM IN THE SAFETY BELT RETRACTOR.

Consequence

IF LOCKUP OCCURS, IT IS IMPOSSIBLE TO PULL BELT OUT OFTHE RETRACTOR. THE OCCUPANT OF A SEA

Remedy

REPLACE THE SAFETY BELTS IF THE LOCKUP OCCURS.

TSB #10006297

NO SERIAL DATA COMMUNICATIONS USING THE TECH 1 WITH A 1986 OR NEWER CAMARO, FIREBIRD OR CORVETTE WITH A 5.0 OR 5.7 LITRE ENGINE. SIT BULLETIN 1450640. *TT

TSB #634999

DIAGNOSIS OF CRACKED OR BROKEN TRANSMISSION CASE. *TT 2006 AND PRIOR CARS AND LIGHT DUTY TRUCKS. *TT

TSB #622763

INFORMATION REGARDING CORVETTE ZF SIX SPEED MANUAL TRANSMISSION. NLM

TSB #39547

REAR LIFT WINDOW HARD TO OPEN/HINGE LOOSE TO GLASS. *TW

20020702Component: VEHICLE SPEED CONTROL:CABLESCrash reported1 injured

WHILE STARTING VEHICLE AND WITHOUT WARNING VEHICLE ACCELERATED. CONSUMER APPLIED BRAKES, BUT BRAKES BECOME INOPERABLE, RESULTING IN A HEAD ON COLLISION CONSUMER SUSTAINED MINOR I

20020702Component: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTSCrash reported1 injured

WHILE STARTING VEHICLE AND WITHOUT WARNING VEHICLE ACCELERATED. CONSUMER APPLIED BRAKES, BUT BRAKES BECOME INOPERABLE, RESULTING IN A HEAD ON COLLISION CONSUMER SUSTAINED MINOR I

20020702Component: VEHICLE SPEED CONTROLCrash reported1 injured

WHILE STARTING VEHICLE AND WITHOUT WARNING VEHICLE ACCELERATED. CONSUMER APPLIES BRAKES, BRAKES BECOME INOPERABLE, RESULTING IN A HEAD-ON COLLISION. CONSUMER SUSTAINED MINOR INJU

20020702Component: SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTSCrash reported1 injured

WHILE STARTING VEHICLE AND WITHOUT WARNING VEHICLE ACCELERATED. CONSUMER APPLIES BRAKES, BRAKES BECOME INOPERABLE, RESULTING IN A HEAD-ON COLLISION. CONSUMER SUSTAINED MINOR INJU

Showing the 4 most serious of 28 complaints filed with NHTSA.

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