GM Service Manual Online
For 1990-2009 cars only

Component

Inspect

Throttle Position Sensor

Open or shorted circuit

Vehicle Speed Sensor

Open or shorted circuit

Pressure Switch Assembly

    • Contamination
    • Damaged seals

Transmission Fluid

Temperature Sensor

Open or shorted circuit

Engine Coolant Temperature Sensor

Open or shorted circuit

Pressure Control Solenoid

    • Damage to pins
    • Contamination