Chevy Avalanche Repair Problems Answered

2004 Chevrolet Avalanche. Warning lights: transmission hot.
2004 Chevy avalanche having trouble going into overdrive local mechanic claims that it might need an overhaul on transmission.

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How Things Work

Power Steering- Electric- How Does It Work

The electric power steering (EPS) system reduces the amount of effort needed to steer the vehicle. The system uses the body control module (BCM), power steering control module (PSCM), torque sensor, discrete battery voltage supply circuit, EPS motor, serial data bus, and the instrument panel cluster (IPC) message center to perform the system functions.

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Common Engine Codes

Knock Sensor Codes P0325 and P0327

The powertrain control module (PCM) contains integrated knock sensor (KS) diagnostic circuitry. The KS produces an AC voltage at all engine speeds and loads. The PCM then adjusts spark timing based on the amplitude and frequency of the KS signal.

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