LEMON Manuals: Even more car manuals for everyone
Home >> Saturn >> 2008 >> Sky Base, Automatic >> Repair and Diagnosis >> Transmission >> Hydraulic Diagrams >> Automatic Transmission - 5L40-E/5L50-E - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis >> Diagnostic Information and Procedures >> First Gear Only

First Gear Only

Check Causes
DEFINITION: The transmission only provides first gear in Drive range. The vehicle accelerates from a stop in first gear and does not upshift.
Control Valve Body Accumulator Assembly
  • 1-2 shift control valve stuck applied
  • 1-2 shift valve stuck applied
Control Valve Body Accumulator Assembly The spacer plate or gasket are mispositioned or damaged
Shift Solenoid Valve
  • Stuck or damaged
  • Faulty electrical connection