1991 Chevrolet Blazer 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
- Scottsdale Sport Utility 2-Door
- Silverado Sport Utility 2-Door
Engines covered
- 6.2L 379Cu. In. V8 DIESEL OHV Naturally Aspirated
- 5.7L 350Cu. In. V8 GAS OHV 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
SEVERE CORROSION DUE TO ROAD SALT AT THE JOINT OF THE STAMPED STEEL CENTER SECTION AND THE CAST OUTER SECTION CAN CAUSE THE SECTIONS TO SEPARATE.
SEPARATION OF THE ROTOR SECTIONS CAN CAUSE LOSS OFBRAKING ABILITY IN THE AFFECTED WHEEL. T
REPLACE THE FRONT BRAKE ROTORS WITH NEW ROTORS WITH A CORROSION PROTECTION COATING. HOWEVE
DIAGNOSTIC INFORMATION FOR INTERMITTENT TRANSMISSION DOWNSHIFT, SLIP, BUSY/CYCLING TCC OR NOISY COOLING FAN. *TT
POP SNAP NOISE IN THE FRONT SUSPENSION WHEN BRAKING. *MR
DIAGNOSIS OF CRACKED OR BROKEN TRANSMISSION CASE. *TT 2006 AND PRIOR CARS AND LIGHT DUTY TRUCKS. *TT
END GATE LATCH RATTLE (INSTALL REVISED STRIKER). *TW
WATER LEAK AT THE A/C RECIRCULATION DOOR (INSTALL NEW HOOD HINGE SEAL). *TW
FRONT DOOR SIDE GLASS BINDING/TRACK DISENGAGEMENT. *TW
OIL PRESSURE GAUGE READING CONCERNS. *TW
ABS BRAKE PROBLEMS; ON REGULAR ROAD CONDITIONS, DRIVER HAD TO MAKE AN EMERGENCY STOP. WHEN APPLYING THE BRAKES, THE PEDAL WENT TO THE FLOORBOARD AND STAYED AT FLOORBOARD. DRIVER R
GOING 20MPH, WHEN VEHICLE IN FRONT STARTED TO STOP. APPLIED THE BRAKES & REAR ENDED FRONT VEHICLE. UPON IMPACT, REAR SEAT BELTS (SHOULDER/LAP) FAILED TO RESTRAIN CSS & GAVE WAY. CH
WHEN APPLYING BRAKES AT 55MPH VEHICLE WENT INTO A SPIN, RESULTING IN A COLLISION AND INJURIES. *AK
NO SUMMARY LISTED FOR THIS VEHICLE. *AK
Showing the 4 most serious of 267 complaints filed with NHTSA.
