Harsh, Soft, Delayed or Slipping Third, Fifth, or 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.

Control Valve Upper Body Assembly

Inspect for a worn, sticking or damaged 3-5 reverse clutch regulator valve and spring. Inspect the valve bore for debris or scoring.