1990 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
CONSUMER WAS DRIVING APPROX. 15 MPH WHEN HE PRESSED THE BRAKES TO SLOW DOWN FOR VEHICLE IN FRONT MAKING A TURN, AND THE BRAKES FAILED. CONSUMER CRASHED INTO THE CAR IN FRONT OF HI
CONSUMER WAS TRAVELING ABOUT 70MPH THERE WAS A LOUD THUMBING NOISE UNDERNEATH THE VEHICLE. CONSUMER LOST CONTROL OF VEHICLE. TIRE TREAD WAS OFF, AND VEHICLE WAS TRAVELING ON T
WHILE DRIVING HOME IN A HEAVY RAIN STORM CAME TO A STOP AT TOP OF STEEP HILL, GETNLY TEPPED THE BRAKES, BRAKES FAILED TO STOP VEHICLE. VEHICLE SLID INTO THE BACK OF A TRUCK, CAUSIN
WHEN APPLYING THE ABS BRAKES, WHILE GOING DOWN A HILL, THE ABS LIGHT CAME ON AND BRAKES FAILED TO STOP THE VEHICLE, CAUSING AN ACCIDENT.*AK
Showing the 4 most serious of 42 complaints filed with NHTSA.
