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Home >> Cadillac >> 2018 >> Escalade Base, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 21 (Automatic Transmission - 8L90 (M5U) - Diagnostic Information And Procedures) >> Diagnostic Information And Procedures >> No Park Or Drive

No Park Or Drive

WARNING: This page is about a different car, the 2018 Chevrolet Suburban 3500 HD. However, it is still accessible from the selected car via links, so may be relevant.
Checks Causes
Output Shaft Assembly (76) Inspect for a broken or damaged output shaft. Inspect for worn splines.
A/Trans Case Assembly (16)
  • Inspect for broken or damaged case.
  • Inspect for broken or bent park pawl actuator.
  • Inspect for broken or missing park pawl actuator guide pin or manual shaft pin.
  • Inspect for broken, loose or misaligned park pawl guide.
  • Inspect for binding or broken park pawl or actuator assembly.
Manual Shift Shaft Position Switch Assembly (604) Inspect for broken or disengaged manual valve detent.
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