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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1620 (Automatic Transmission - 6T75 - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis) >> Diagnostic Information And Procedures >> Harsh or Late First, Second, Third, and Fourth Shift

Harsh or Late First, Second, Third, and Fourth 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
1-2-3-4 Clutch Assembly
  • Inspect for damaged or broken 1-2-3-4 Clutch Piston (461) and piston seals damaged, worn or leaking
  • Inspect for fatigued or binding 1-2-3-4 Clutch Piston Return Spring (460)
  • Inpsect for improper surface finish on 1-2-3-4 Clutch Plates (456-458)
Case Cover Assembly (403) Inspect for leaking or loose fitting blow off valve
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