GM Service Manual Online
For 1990-2009 cars only

Strategy Based Diagnostics

Review the system operations in order to familiarize yourself with the system functions. Refer to Manual Transmission.

Visual/Physical Inspection

    • Inspect the manual transaxle 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 transaxle for the correct fluid level.
    • Inspect the manual transaxle for fluid leaks.
    • Inspect the manual transaxle 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:

    •  Bearing Failure
    •  Bearing Noise
    •  Knock at Low Speeds
    •  Noise Most Pronounced on Turns
    •  Transmission Clunk on Acceleration or Deceleration
    •  Click Noise In Turns
    •  Vibration Diagnosis
    •  Noisy in Neutral with Engine Running
    •  Noisy in First Gear Only
    •  Noisy in Second Gear Only
    •  Noisy in Third Gear Only
    •  Noisy in Fourth Gear Only
    •  Noisy in Fifth Gear Only
    •  Noisy in Reverse Only
    •  Noisy in All Gears
    •  Slips out of Gear
    •  Slips out of Gear While Accelerating
    •  Slips out of Gear While Coasting