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Home >> Mitsubishi >> 2014 >> Lancer ES Sportback >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Intake & Exhaust System - Lancer >> Intake And Exhaust Diagnosis >> Symptom Procedures >> Inspection Procedure 2: Abnormal Noise >> Diagnosis

Inspection Procedure 2: Abnormal Noise: Diagnosis

  1. STEP 1. Start the engine. Have an assistant stay in the drivers seat. Raise the vehicle on a hoist. Have the assistant rev the engine while searching for abnormal noise. 

    Q: Is any abnormal noise generated? 

    1. YES:  Go to Step 2.
    2. NO:  The procedure is complete.
  2. STEP 2. Check for missing parts in the muffler. Tap the muffler lightly to check for loose baffles, etc. 

    Q: Are there any missing parts in the muffler? 

    1. YES:  Replace the muffler (Refer to EXHAUST PIPE AND MAIN MUFFLER < 2.0L ENGINE Non-turbo, 2.4L ENGINE >  ). Then go to  STEP 7.
    2. NO:  Go to Step 3.
  3. STEP 3. Check the hanger for cracks. 

    Q: Is the hanger cracked? 

    1. YES:  Replace the hanger (Refer to EXHAUST PIPE AND MAIN MUFFLER < 2.0L ENGINE Non-turbo, 2.4L ENGINE >  ). Then go to  STEP 7.
    2. NO:  Go to Step 4.
  4. STEP 4. Check for interference of the pipes and muffler with the body. 

    Q: Are the pipes and muffler interfering with the body? 

    1. YES:  Repair the pipes or muffler. Then go to  STEP 7.
    2. NO:  Go to Step 5.
  5. STEP 5. Check the heat protectors. 

    Q: Are any heat protectors loose or damaged? 

    1. YES:  Tighten or replace the heat protector (Refer to EXHAUST PIPE AND MAIN MUFFLER < 2.0L ENGINE Non-turbo, 2.4L ENGINE >  ). Then go to  STEP 7.
    2. NO:  Go to Step 6.
  6. STEP 6. Check the pipes and muffler for damage. 

    Q: Are the pipes and muffler damaged? 

    1. YES:  Replace the pipes or muffler (Refer to EXHAUST PIPE AND MAIN MUFFLER < 2.0L ENGINE Non-turbo, 2.4L ENGINE >  ). Then go to Step 7.
    2. NO:  There is no action to be taken.
  7. STEP 7. Start the engine. Have an assistant stay in the drivers seat. Raise the vehicle on a hoist. Have the assistant rev the engine while searching for abnormal noise. 

    Q: Is any abnormal noise generated? 

    1. YES:  Return to Step  2.
    2. NO:  The procedure is complete.
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