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Home >> Chevrolet >> 2011 >> Suburban C2500 >> Repair and Diagnosis >> External Pages >> Different car >> Section 1752 (Automatic Transmission - 2ML70 - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> No First, Second, Third, or Fourth Gear

No First, Second, Third, or Fourth Gear

WARNING: This page is about a different car, the 2011 GMC Yukon, 2011 Chevrolet Tahoe, and 2011 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
No First, Second, Third, or Fourth Gear

Checks Causes
1-3 and 2-3-4 Clutch Assembly
  • Inspect for damaged or worn 1-3 and 2-3-4 clutch plates.
  • Inspect for damaged 1-3 and 2-3-4 clutch piston, piston housing, spring, and dam assembly.
  • Inspect for damaged 1-3 and 2-3-4 clutch piston dam retaining ring.
  • Inspect for cut, worn, or damaged 1-3 and 2-3-4 clutch piston seal, inner seal, and housing seals.
  • Inspect for improper selective 1-3 and 2-3-4 clutch backing plate retaining ring.
  • Inspect for damaged 1-3 and 2-3-4 clutch backing plate. Inspect for worn splines on the backing plate.
Carrier 3rd Position Assembly Inspect for damaged splines on the hub assembly.
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