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Home >> Chevrolet >> 2017 >> Spark LT, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 79 (Automatic Transmission - 6T45 (MH7) - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> Harsh Garage Shift

Harsh Garage Shift

WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. However, it is still accessible from the selected car via links, so may be relevant.
Checks Causes
Input Carrier Assembly (570) Inspect for worn or stripped Output Internal Gear Splines.
Low-Reverse and 1 - 2 - 3 - 4 Clutch Housing (551)
  • Inspect for damaged or fatigued 1 - 2 - 3 - 4 Clutch Wave Plate (557) and Low and Reverse Clutch Wave Plate (547). Refer to Clutch Plate Diagnosis .
  • Inspect for stripped or sheared splines on 1 - 2 - 3 - 4 Clutch Plate (546). Refer to Clutch Plate Diagnosis .
  • Inspect for improperly positioned or plugged Low Reverse Piston (550) air bleed.
  • Inspect for correct fluid level.
Low and Reverse Clutch Assembly (OWC) (543) Inspect for stripped or sheared internal and external splines on Low and Reverse Clutch Assembly (543).
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