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Home >> Cadillac >> 2006 >> CTS V >> Repair and Diagnosis >> External Pages >> Different car >> Section 271 (Automatic Transmission - 6L50/6L80/6L90 - Service, Diagnosis & Trouble Shooting) >> No Third, Fifth, and Reverse Gear

No Third, Fifth, and Reverse Gear

WARNING: This page is about a different car, the 2007 Cadillac SRX. However, it is still accessible from the selected car via links, so may be relevant.
No Third, Fifth, and Reverse Gear

Checks Causes
1-2-3-4 and 3-5-R Clutch Assembly (51)
  • Inspect for damaged or worn 3-5-R clutch plates (402-404).
  • Inspect for damaged 3-5-R clutch piston (421), apply ring (405), and spring (420).
  • Inspect for cut, worn, or damaged 3-5-R clutch piston dam O-ring seal (418), inner seal (419), and outer seal (422).
  • Inspect for improper selective 3-5-R clutch backing plate retaining ring (400).
  • Inspect for damaged 3-5-R clutch backing plate (401). Inspect for worn splines on the backing plate.