For 1990-2009 cars

#### No 2-3 Shift or 2-3 Shift slipping, Rough or Hunting

Checks | Causes
--- | ---
Oil Pump (4) | Stator shaft bushings scored or off location
Valve Body Assembly (60) |

• | 2-3 Shift valve train stuck

• | Gaskets or spacer plate incorrect, mispositioned or damaged

• | 2-3 Accumulator valve stuck

• | Face not flat

• | Chips in servo feed oil, orifice #7 in spacer plate

• | Mislocated valve body to spacer plate checkball or checkballs

Input Housing Assembly (620-621, 646-655) |

• | 3-4 clutch or forward clutch plates worn

• | Excessive clutch plate travel

• | Cut or damaged 3-4 clutch or forward clutch piston seals

• | Porosity in input clutch housing or piston

• | 3-4 clutch piston checkball stuck, damaged or not sealing

• | Restricted apply passages

• | Forward clutch piston retainer and ball assembly not seating

• | Sealing balls loose or missing

• | Input housing (621) cracked or broken

Case (103) | 3rd accumulator retainer and ball assembly not seating
2-4 Servo Assembly (13-28) | 2nd apply piston seals missing, cut or damaged