Inspection Procedure 12: Abnormal sound occurs during idling: 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.

STEP 1. Check the engine performance.
Check the sound of engine, auxiliary parts, and resonance/nonresonance.

Q: Is the check result normal?
- YES: Go to Step 2.
- NO: Repair the failure, and perform adjustment.
STEP 2. Check the transmission fluid level.
Check if the transmission fluid level is adequate.

Q: Is the check result normal?
- YES: Go to Step 4.
- NO: Go to Step 3.
STEP 3. Check and repair the leakage point of the transmission fluid.
Check and repair the leakage point of the transmission fluid, and adjust the transmission fluid level. Then check if the abnormal sound is generated.

Q: Is the check result normal?
- YES: The procedure is complete.
- NO: Go to Step 4.
STEP 4. Check the transmission fluid.
Check the transmission fluid for burning, fouling, and foreign material.

Q: Is the check result normal?
- YES: Go to Step 5.
- NO: Go to Step 8.
STEP 5. Retest the system.
Check if the abnormal sound during idling occurs with vibration.

Q: Is the check result normal?
- YES: Go to Step 6.
- NO: Go to Step 7.
STEP 6. Check the torque converter.
Check the torque converter installation, change the installation phase, and then check the trouble symptom.

Q: Is the check result normal?
- YES: The procedure is complete.
- NO: Go to Step 7.
STEP 7. Compare with another same model vehicle.
Q: Is there a difference from the same model vehicle?
- YES: Go to Step 8.
- NO: The procedure is complete.
STEP 8. 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.