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Home >> Cadillac >> 2021 >> XT5 Sport >> Repair and Diagnosis >> External Pages >> Different car >> Section 707 (Automatic Transmission - 10L1000 (MGM MGU) - Diagnostic Information And Procedures (2 Of 2)) >> Diagnostic Information and Procedures >> No Drive in All Ranges

No Drive in All Ranges

WARNING: This page is about a different car, the 2023 GMC Sierra 3500 HD and 2023 GMC Sierra 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
Checks Causes
A/Trans Fluid Pan (21) Verify proper fluid level and condition, inspect transmission assembly for leaks.
A/Trans Fluid Filter (39)
  • Inspect for damaged or restricted fluid filter (14).
  • Inspect for damaged fluid filter seal (26) or improper sealing interface, leaks, and fluid aeration.
A/Trans Fluid Pump Seal (40) Inspect for worn or damaged seal.
A/Trans Cooling/Lubrication System Inspect transmission oil cooler (radiator) and cooler line seals for restrictions, damage, kinks, or leaks.
Torque Converter (1) Inspect for overheating (blued), ballooning, leaks, or other damage.
Manual Shift Detent Lever (605) Inspect PRNDL commands to and from vehicle using appropriate scan tool.
Control Valve Solenoid Body (35) Inspect PRNDL commands to and from vehicle using appropriate scan tool.
Output Carrier Shaft (60) Inspect for spline wear or damage.
Output Carrier (60)
  • Inspect the carrier assembly for damaged pinion gears, thrust washers, pins, and rollers.
  • Inspect for damaged thrust bearings.
  • Inspect for damaged sun gears.
  • Inspect the carrier assembly for damaged output carrier rear sun gear thrust bearing (captured).
Input Carrier (86) Inspect carrier assembly for damaged pinion gears, thrust washers, pins, and rollers.
Input Sun Gear (85) Inspect for spline wear or damage.
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