Strategy Based Diagnostics
Review the system operations in order to familiarize yourself with the
  system functions. Refer to 
Transmission System Description and Operation 
.
Visual/Physical Inspection
|     •  | Inspect the easily accessible or visible system components for
  obvious damage or conditions which could cause the symptom. | 
 
|     •  | Inspect the manual transmission for the correct fluid level. | 
 
|     •  | Inspect the manual transmission for fluid leaks. | 
 
|     •  | Inspect the manual transmission for broken or loose  transmission
 mounts. | 
 
Intermittent
Test the vehicle under the same conditions that the customer reported
  in order to verify the system is operating properly.
Symptom List
Refer to a symptom diagnostic procedure from the following list in order
  to diagnose the symptom: