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1991 Chevrolet Corvette CAR/TRUCK REPAIR PROCEDURES AND DIAGRAMS - WHAT Chevrolet REPAIR SHOPS DON'T WANT YOU TO KNOW
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- Component Locations
- Wiring Diagrams
- Technical Service Bulletins
- Specifications
- A/C & Heater Service
- Brake Service
- Fuel Filter Replacement
- Driveline, U-Joint & CV Axles Replacement
- Tire Pressure Monitoring System
- Starter & Alternator Replacement
- Maintenance Lamp Reset
- Radiator & Hose Replacement
- Serpentine Belt Service
A/C & HEATER SERVICE PROCEDURES FOR 1991 Chevrolet Corvette AUTOMOBILES
A/C & Cooling System Maintenance -> General Motors Corp. -> 1990-2002 Chevrolet Corvette
Vehicle: 1991 Chevrolet Corvette ZR-1 5.7 V8 GAS
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BRAKE SERVICE PROCEDURES FOR 1991 Chevrolet Corvette AUTOMOBILES
HYDRAULIC BRAKE SYSTEM, GENERAL MOTORS -> COMPONENT DESCRIPTION -> BRAKE DISTRIBUTION VALVE & SWITCH -> BRAKE WARNING LAMP SWITCHES -> COMBINATION VALVE -> Failure Warning Switch -> Fluid Level Sensor -> Metering Valve -> Proportioning or Pressure Control Valve -> Testing Warning Lamp Operation
Vehicle: 1991 Chevrolet Corvette ZR-1 5.7 V8 GAS
BRAKE WARNING LAMP SWITCHES
There are four basic types of brake warning lamp switches as shown,Figs. through . When a pressure differential occurs between the front and rear brake systems, the valves will shuttle toward the side with the low pressure.
In the switch shown inFig. , movement of the differential valve forces the switch plunger upward over the tapered shoulder of the valve to close the switch contacts and light the dual brake warning lamp, signaling a brake system failure.
InFig. , the valve assembly consists of two valves in a common bore that are spring loaded ...
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FUEL FILTER REPLACEMENT PROCEDURES FOR 1991 Chevrolet Corvette AUTOMOBILES
General Motors Corp./Saturn Passenger Cars -> Fuel Pressure Relief -> Except Aveo, LaCrosse, LeMans (1988-93), Malibu & Malibu Maxx (2004-05), Metro, Nova, Prizm, Spectrum & Storm -> Engine Fuel Pressure Service Port -> Engines Less Fuel Pressure Service Port
Vehicle: 1991 Chevrolet Corvette ZR-1 5.7 V8 GAS
Do not smoke or allow an open flame of any type when working on or near any fuel system related components. The highly flammable vapor mixtures may ignite, resulting in serious personal injury.
Prior to disconnecting fuel lines, the fuel system pressure must be relieved to prevent accidental spray of fuel.
After the battery has been disconnected and reconnected, some abnormal driveability symptoms may occur. The vehicle may need to be driven while the vehicle relearns its adaptive strateg...
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DRIVELINE, U-JOINT & CV AXLES REPLACEMENT PROCEDURES FOR 1991 Chevrolet Corvette AUTOMOBILES
DRIVESHAFT, Replace -> Axle Shaft -> Propeller Shaft
Vehicle: 1991 Chevrolet Corvette ZR-1 5.7 V8 GAS
Propeller Shaft
- With transmission in neutral and parking brake released, raise and support vehicle, then remove underbody braces, as required.
- Remove exhaust system as follows:
- Disconnect AIR pipe from catalytic converter and exhaust pipe.
- Disconnect electrical connector to oxygen sensor.
- Remove bolts securing muffler to hangers, disconnect exhaust pipes from manifolds and remove exhaust system as an assembly.
- Support transmission, remove support beam retaining bolts and support beam.
- Mark position of shaft in relation to pinion flange for installation.
- Remove straps securing univer...
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TIRE PRESSURE MONITORING SYSTEM PROCEDURES FOR 1991 Chevrolet Corvette AUTOMOBILES
Diagnosis & Testing -> 1991-95 -> 1991-96 Diagnostic Trouble Code Identification -> 1996 -> Accessing Diagnostic Trouble Codes -> Intermittent & Poor Connections -> Intermittents -> Poor Connections
Vehicle: 1991 Chevrolet Corvette 5.7 V8 GAS
Accessing Diagnostic Trouble Codes
1991-95
The trouble codes can be accessed by connecting a suitable jumper wire between the ALDL connector link terminals B and A. The connector is located under the left side of the instrument panel. The Low Tire Pressure Warning Lamp will blink the trouble codes. The codes may also be accessed by connecting a suitably programmed scan tool to the ALDL connector.
1996
Connect a suitably programmed scan tool to DLC (Data Link Connector) and follow manufacturer's instructions.
1991-96 Diagnostic Trouble Code Identification
[[table data]]Intermittent & Poor Connec...
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STARTER & ALTERNATOR REPLACEMENT PROCEDURES FOR 1991 Chevrolet Corvette AUTOMOBILES
Starter, Replace
Vehicle: 1991 Chevrolet Corvette 5.7 V8 GAS
If shims are required between starter and engine block, they should be placed in their original location during installation. If starter is noisy during cranking, remove one .015 inch double shim or add one .015 single shim to outer bolt. If starter makes a high pitched whine after firing, add .015 inch double shims until noise ceases.
- Disconnect battery ground cable.
- Drain cooling system into a suita...
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MAINTENANCE LAMP RESET PROCEDURES FOR 1991 Chevrolet Corvette AUTOMOBILES
General Motors Corp./Saturn Cars -> Low Washer Fluid Indicator ->
Vehicle: 1991 Chevrolet Corvette 5.7 V8 GAS
The windshield washer solvent tank has a switch that closes when the wash...
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RADIATOR & HOSE REPLACEMENT PROCEDURES FOR 1991 Chevrolet Corvette AUTOMOBILES
Coolant Hose, Replace -> Lower -> Upper
Vehicle: 1991 Chevrolet Corvette ZR-1 5.7 V8 GAS
Lower
- Drain coolant into a suitable container.
- Loosen hose clamp connecting hose to radiator.
- Loosen hose clamp connecting hose to water pump inlet.
- Remove hose from vehicle.
- Reverse procedure t...
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SERPENTINE BELT SERVICE PROCEDURES FOR 1991 Chevrolet Corvette AUTOMOBILES
Serpentine Drive Belt, Replace
Vehicle: 1991 Chevrolet Corvette 5.7 V8 GAS
- Disconnect battery ground cable.
- Remove air intake duct from throttle body extension.
- Retract serpentine drive be...
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COMPONENT LOCATION DIAGRAMS FOR 1991 Chevrolet Corvette AUTOMOBILES
Component location diagrams for most 1991 Chevrolet Corvette cars and light trucks sold in the U.S. from 1990+.
RH Rear Of Engine Compartment Diagram for 1991 Chevrolet Corvette 5.7 V8 GAS Components on diagram: |
LH Front Of Engine Compartment Diagram for 1991 Chevrolet Corvette ZR-1 5.7 V8 GAS Components on diagram: |
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WIRING DIAGRAMS FOR 1991 Chevrolet Corvette AUTOMOBILES
OEM drawn wiring diagrams for most 1991 Chevrolet Corvette cars and light trucks sold in the U.S.
1991 Chevrolet Corvette 5.7 V8 GAS Wiring Diagram Components on diagram: |
1991 Chevrolet Corvette 5.7 V8 GAS Wiring Diagram Components on diagram: |
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TECHNICAL SERVICE BULLETINS FOR 1991 Chevrolet Corvette AUTOMOBILES
OEM TSB listings for most 1991 Chevrolet Corvette cars and light trucks sold in the U.S. from 1985+.
Document: Car and Truck Fix It Right the First Time Issues Vehicle: 1991 Chevrolet Corvette 5.7 V8 GAS Auto Systems: |
Document: GM TIRE WARRANTY PROGRAM CLAIMS GOODWILL GUIDELINES - REVISED Vehicle: 1991 Chevrolet Corvette 5.7 V8 GAS Auto Systems: |
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COMPONENT/PARTS SPECIFICATIONS FOR 1991 Chevrolet Corvette AUTOMOBILES
BRAKE SPECIFICATIONS: Brake drum, rotor, caliper, and related specifications for most 1991 Chevrolet Corvette cars and light trucks sold in the U.S. and Canada from 1970+.
- Brake caliper mounting bolt torque
- Brake drum runout, machining, & discard specs
- Minimum brake lining thickness.
- Brake rotor runout, parallelism, machining, discard, & finish specs
A/C SYSTEM SPECIFICATIONS: Air conditioning refrigerant capacity and type as well as lubricant capacity for most 1991 Chevrolet Corvette cars and light trucks sold in the U.S. and Canada from 1980+.
- Refrigerant capacity & type, compressor oil viscosity, total system oil capacity & compressor clutch gap
COOLING SYSTEM BLEED: Cooling system bleeder valve identification, bleeder type and bleed procedures for most domestic and imported cars and light trucks sold in the U.S. and Canada from 1986+.
PREVENTIVE MAINTENANCE: Preventive maintenance recommendations and required services for most domestic and imported cars and light trucks sold in the U.S. and Canada from 1980+. Includes severe and routine service schedules
QUICK-LUBE and ILLUSTRATIONS: Fluid recommendations, capacities, drain plug torques, tire data, and severe service recommended preventive maintenance schedules. Information covers most 1991 Chevrolet Corvette cars and light trucks sold in the U.S. and Canada from 1980+. Engine and chassis service images.
- Automatic transmission/transaxles capacities, lubricant recommendations
- Differential/final drive capacities, lube recommendations, grades, & viscosities
- Final drive fill & drain plug torques
- Number of lubrication fittings & plugs
- Power steering, brake, & clutch fluid recommendations
- Manual transmission/transaxle capacities, lube recommendations, grades, & viscosities
- Number of lubrication fittings & plugs
- Power steering, brake, & clutch fluid recommendations
- Engine oil capacities, API grade recommendations, SAE viscosity recommendations, drain plug torque
- Severe service maintenance & interval recommendations
- Tire sizes, wheel nut/bolt torque, pressures & rim sizes
- Transfer case capacities, lube recommendations, grades, & viscosities
TUNE-UP & DRIVEABILITY SPECIFICATIONS: Most tune-up specifications for most 1991 Chevrolet Corvette cars and light trucks sold in the U.S. and Canada from 1980+
- Airflow sensor electrical specifications
- Tensioning specifications for systems with automatic tensioners
- Barometric pressure sensor specs
- Battery group number and cranking performance
- Crankshaft & camshaft position sensor resistance
- Engine compression pressures
- Coolant temperature sensor specs
- Computer advance.
- Diesel fuel temperature sensor resistance.
- Distributor advance specifications
- Ignition pickup coil resistance
- Exhaust gas recirculation temperature sensor resistance
- Engine fastener torque values
- Firing order diagrams
- Fuel system pressures
- Generator (alternator) specs
- Intake air temperature sensor specs
- Ignition coil specifications
- Fuel injector resistance
- Engine idle speeds
- Knock sensor resistance
- Manifold absolute pressure sensor specs
- Mixture control solenoid resistance
- Voltage regulator specs
- Spark plug applications & gaps
- Starter motor electrical specs.
- Tensioning specifications for systems without automatic tensioners
- Throttle body temperature sensor resistance
- Ignition timing in degrees at rpm
- Transmission oil temperature sensor resistance
- Throttle position sensor specs
- Vacuum sensor valve specs
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