GM Service Manual Online
For 1990-2009 cars only

No O/D-3, 3-2,or 2-1 Kickdown for Generic Unit Repair 2003

Problem

Action

Faulty shift solenoid

Inspect the shift solenoid.

Fault within electronic control system

Perform the Powertrain On-Board Diagnostic (OBD) system check.

Faulty valve body

Inspect the valve body.

Faulty throttle valve cable

Inspect the throttle valve cable.