1990 Chevrolet C/K Pickup, Blazer, Suburban, Van Repair Shop Manual

Official Service and Repair Instructions

Introduction

This manual provides comprehensive service and repair information for 1990 Chevrolet C/K Pickup, Blazer, Suburban, and Van models. It is the official repair manual utilized by dealerships and service centers, offering detailed diagrams, photographs, and exploded views to assist with various maintenance and repair procedures.

The content is designed for technicians and individuals who require genuine OEM quality information for vehicle servicing. It covers a wide range of topics essential for diagnosing, repairing, and maintaining your Chevrolet truck or van.

How to Use This Manual

This manual is organized into sections based on vehicle systems. To locate specific information, refer to the relevant section heading. Each section contains detailed instructions, illustrations, and specifications pertinent to the system being discussed.

General Information: Provides an overview of the vehicle, safety precautions, and general service procedures.
System-Specific Sections: Detailed repair and maintenance steps for individual components.
Diagrams and Illustrations: Use these visual aids to understand component locations and assembly sequences.

Always prioritize safety. Disconnect the battery before working on electrical components and use appropriate personal protective equipment.

Key Systems Covered

This manual provides in-depth coverage for the following major vehicle systems:

Steering System: Includes power steering, steering gear, linkage, and wheel alignment procedures.
Suspension System: Covers front and rear suspension components, shock absorbers, springs, and related adjustments.
Driveline/Axle: Details on driveshafts, universal joints, front and rear axles, differentials, and wheel bearings.
Brake System: Comprehensive information on disc and drum brakes, anti-lock brake systems (ABS), master cylinder, brake lines, and bleeding procedures.
Engine: Detailed instructions for engine diagnostics, repair, overhaul, and component replacement. Includes fuel and emissions service information.
Transmission: Covers both manual and automatic transmissions, including removal, installation, repair, and adjustment procedures.
General Information: Electrical systems, body, frame, and other general service topics.

Maintenance Procedures

Regular maintenance is crucial for the longevity and performance of your vehicle. This manual outlines recommended service intervals and procedures for various components, including:

Fluid checks and changes (engine oil, transmission fluid, coolant, brake fluid, power steering fluid).
Filter replacements (oil filter, air filter, fuel filter).
Inspection and adjustment of belts, hoses, and ignition components.
Tire rotation and inspection.
Brake system inspection and pad replacement.

Troubleshooting Guide

This section assists in diagnosing common vehicle issues. It provides symptom-based troubleshooting charts and diagnostic procedures to help identify the root cause of problems related to the engine, transmission, brakes, electrical system, and more.

Follow the diagnostic steps systematically to ensure accurate problem identification and effective repair.

Specifications

This manual includes detailed technical specifications for various vehicle components, including torque values, fluid capacities, electrical diagrams, and component dimensions. Always refer to these specifications when performing repairs or replacements to ensure proper fit and function.

Publication Details:

Publisher: GMC
Publication Date: January 1, 1990
Language: English

Physical Dimensions:

Item Weight: 5.96 pounds
Dimensions: 11 x 8.5 x 2.13 inches

Visual Reference

Image: Front cover of the 1990 Chevrolet C/K Pickup Service Manual. The cover displays "1990 CHEVROLET TRUCKS C/K PICKUP SERVICE MANUAL" with the model number ST 375-90. This image represents the official repair manual for the specified vehicle models.

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Chevrolet ST 375-90