1st Gear Range Only - No Upshift
Checks 
 | Causes 
 | 
Control Valve Body (60) 
 | 
|     •  | The 1-2 Shift valve is sticking |  
  
|     •  | The spacer plate or gaskets are mispositioned or damaged |  
  
 | 
Case (103) 
 | The case to valve body face is damaged or is not flat 
 | 
Shift Solenoid Valves (366/368) 
 | 
|     •  | Faulty electrical connection |  
  
 | 
2-4 Servo Assembly (13-28) 
 | 
|     •  | The apply passage case is restricted or blocked |  
  
|     •  | Nicks or burrs on the servo pin or on the pin bore in the case |  
  
|     •  | Fourth servo piston is installed backwards |  
  
 | 
2-4 Band Assembly (602) 
 | 
|     •  | The 2-4 band is worn or damaged |  
  
|     •  | The band anchor pin is not engauged |  
  
 |