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Home >> Mitsubishi >> 2014 >> Lancer ES Sportback >> Repair and Diagnosis >> External Pages >> Different car >> Section 52 (Automatic Transaxle On-Vehicle Service - With Diagnostics) >> Automatic Transaxle Diagnosis < A/T > >> Diagnostic Trouble Code Procedures >> Inspection Procedure 13: Abnormal sound occurs during driving >> Diagnosis

Inspection Procedure 13: Abnormal sound occurs during driving: Diagnosis

WARNING: This page is about a different car, the 2014 Mitsubishi Outlander. However, it is still accessible from the selected car via links, so may be relevant.
  1. STEP 1. Check the body and engine performance. 
    • Check if a non-genuine aeropart is installed to the body.
    • Check the engine auxiliary parts, drive shaft, and wheel bearing.
    • Check if the abnormal sound changes in accordance with the engine speed, or the vehicle speed.

    Q: Is the check result normal? 

    • YES:  Go to Step 2.
    • NO:  Repair the failure, and perform adjustment.
  2. STEP 2. Check the installation of the transaxle control cable, damping device, and sound isolation device. 

    Q: Is the check result normal? 

    • YES:  Go to Step 3.
    • NO:  Repair the failure, and perform adjustment.
  3. STEP 3. Check the abnormal sound. 

    Q: Does the abnormal sound change in accordance with the vehicle speed? 

    • YES:  Go to  Step 5.
    • NO:  Go to Step 4.
  4. STEP 4. Check the abnormal sound. 

    Q: Does the abnormal sound change in accordance with the throttle valve opening? Or is it the transmission fluid sound especially caused at start-up? 

    • YES:  Replace the torque converter.
    • NO:  Go to Step 5.
  5. STEP 5. Compare with another same model vehicle. 

    Q: Is there a difference from the same model vehicle? 

    • YES:  Go to Step 6.
    • NO:  The procedure is complete.
  6. STEP 6. Remove the transaxle assembly from the vehicle. 

    Disassemble and check the transaxle assembly to check if there is a foreign material inside.

    Q: Is the check result satisfactory? 

    • YES:  Replace the transaxle assembly.
    • NO:  Replace the failure part.