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Home >> Chevrolet >> 2021 >> Trailblazer RS, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 11 (Automatic Transmission - VT40 (MRG) - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> Automatic Transmission Fluid Leaks

Automatic Transmission Fluid Leaks

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Checks Causes
Torque Converter (16) Inspect for damage
Automatic Transmission Case (25)
  • Inspect for cracked or broken Case (25)
  • Inspect for porosity or damage on the sealing surfaces
  • Inspect for damaged Manual Shift Shaft Seal (405)
  • Inspect for damaged or worn Front Wheel Drive Shaft Oil Seal (17)
  • Inspect for plugged Transmission Fluid Filler Cap (5)
  • Inspect for loose Automatic Transmission Fluid Level Hole Plug (50) and Automatic Transmission Case Hole Plug (71)
Torque Converter and Differential Housing (12)
  • Inspect for damaged Torque Converter Housing Assembly (12)
  • Inspect for porosity or damage on the sealing surfaces
  • Inspect for damaged Torque Converter Housing Gasket (24)
  • Inspect for damaged or worn Torque Converter Fluid Seal (15)
  • Inspect for loose Torque Converter and Differential Housing Bolts (18) and (26)
  • Inspect for loose, missing or damaged Transmission Fluid Filler Hole Plug (11)
Control Valve Body Cover (53)
  • Inspect for damaged or warped Valve Body Cover Assembly (53)
  • Inspect for damaged or improperly installed Valve Body Cover Seal (54)
  • Inspect for loose Valve Body Cover Bolts (52) and Valve Body Cover Studs (51)
  • Inspect for damaged or improperly installed Control Valve Body Cover Wiring Connector Hole Seal (55)
Automatic Transmission Case Cover
  • Inspect for cracked or broken Automatic Transmission Case Cover
  • Inspect for porosity or damage on the sealing surfaces
  • Inspect for damaged Fluid Cooler Pipe Fitting Seals (88)
  • Inspect for damaged Automatic Transmission Case Cover Gasket
  • Inspect for loose Automatic Transmission Case Cover Bolts
  • Inspect for loose Variable Drive Pulley Bearing Retainer Bolts
  • Inspect for loose Variable Driven Pulley Bearing Retainer Bolts
  • Inspect for damaged or worn Automatic Transmission Intermediate Speed Sensor Seal
  • Inspect for loose Automatic Transmission Case Cover Plug (83) and (80)