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Home >> Cadillac >> 2006 >> CTS V >> Repair and Diagnosis >> External Pages >> Different car >> Section 270 (Automatic Transmission - 5L40-E/5L50-E - Service, Diagnosis & Trouble Shooting) >> No Reverse or Slips in Reverse

No Reverse or Slips in Reverse

WARNING: This page is about a different car, the 2007 Cadillac SRX. However, it is still accessible from the selected car via links, so may be relevant.
No Reverse or Slips in Reverse

Check Causes
DEFINITION: A large engine RPM increase is noted with little or no vehicle rearward speed increase during the following conditions:
  • The engine is running.
  • The transmission is in Reverse range.
  • The vehicle is stopped or moving slowly.
  • The vehicle brakes are not applied.
  • The throttle is opened 25 percent or greater.
Direct and Reverse Clutch Assembly
  • Damaged reverse clutch housing ball check valve
  • Damaged or cut piston
  • Damaged or worn clutch plates
Control Valve Body Accumulator Assembly
  • Reverse lockout valve stuck
  • TCC PWM solenoid valve leaking
Selector Lever Adjustment
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