Electrical equipment of car engine Chevy Trailblazer 1

Engine Electrical Systems — Specifications
General Battery voltage Engine off - 12.0-12.6V The engine is running -13.5-14.7V Generator output current is 150A Tightening torques of threaded connections...

General information and precautions
General information The engine electrical system consists of ignition, starting and charging subsystems (see illustration). In connection with that. since the...

Battery — Checking and Replacing
Warning: The battery produces hydrogen gas, so keep open flames and lit cigarettes away from the battery. When working with the battery, you must wear...

Battery Cables — Replacement
1. Wires should be periodically inspected along their entire length for damage, cracks, burnout or corrosion of the insulation. Loose terminals cause difficult...

Ignition system — general information
All models described use a distributorless ignition system, which consists of a battery. six coils (one for each cylinder), spark plug boots, spark plugs,...

Ignition system — checking functionality
Warning 1: When working on ignition components, extreme caution must be taken as this system generates extremely high voltages which may be present not only at...

Ignition coils — removal and installation
1. Disconnect the negative battery cable. 2. Remove the intake air duct resonator from the throttle body ( see chapter 4 ). 3. Disconnect the wiring connector...

Charging system — general information and precautions
The main elements of the charging system are the generator (together with a voltage regulator), battery and wires connecting these elements. The charging...

Charging system — checking functionality
Note: Vehicles have an on-board diagnostic system called OBD, which can be used to determine the cause of problems with the charging system. IN chapter 6 the...

Generator — removal and installation
1. Disconnect the negative battery cable. 2. Remove the drive belt ( see chapter 1 ). 3. Remove the bolt from the air conditioning line bracket located on the...

Starting system — general information and precautions
The starter consists of a permanent magnet and an electric motor that drives the toothed ring gear of the drive shaft. The starter is a non-separable unit,...

Starter and its electrical circuit — checking the functionality
1. If the starter does not engage when you turn the ignition key, first check the following. Battery cable terminals are free of deposits and are securely...

Starter — removal and installation
1. Disconnect the negative battery cable. 2. Loosen the left front wheel mounting nuts, raise the front of the vehicle and install vertical supports. Remove...

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