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Home >> Cadillac >> 2004 >> CTS Base, 3.2 N >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Automatic Transmission Troubleshooting) >> Troubleshooting >> First Gear Only

First Gear Only

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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
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