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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1914 (Automatic Transmission - 6T75 - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis) >> Diagnostic Information And Procedures >> Harsh Fourth, Fifth, and Sixth Shift

Harsh Fourth, Fifth, and Sixth Shift

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
Checks Causes
4-5-6 Clutch Assembly
  • Inspect for leaking 4-5-6 Clutch Piston (433) and Piston Seals (430-432)
  • Inspect for plugged or restricted 4-5-6 Piston Dam air bleed
  • Inspect for fatigued 4-5-6 Clutch Piston Spring (434)
  • Inspect for leaking 4-5-6 Clutch Dam Seals (435)
  • Inspect for improper surface finish on 4-5-6 Clutch Plates (439-441)
  • Inspect for porous, improper surface finish, seal groove damage or plugged or restricted oil passages of the 3-5-Rev/4-5-6 Housing (422)