Symptoms - Manual Transmission for GMC Truck Sierra Denali 2008
Strategy Based Diagnostics
Review the system operations in order to familiarize yourself with the system functions. Refer to
Manual Transmission Description and Operation.
Visual/Physical Inspection
| • | Inspect the manual transmission for excessive wear or damage. |
| • | 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:
