Inspection Procedure 4: The acceleration is poor: 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.
Q: Is the check result normal?
- YES: Go to Step 2.
- NO: Repair the failure, and perform adjustment.
- STEP 2. Compare with another same model vehicle.
Q: Is there a difference from the same model vehicle?
- YES: Go to Step 3.
- NO: The procedure is complete.
- STEP 3. Check the TCM power supply and ground.
Q: Is the check result satisfactory?
- YES: Go to Step 4.
- NO: Repair the wiring.
- STEP 4. Replace the TCM.
Q: Is the failure resolved?
- YES: The procedure is complete.
- NO: Go to Step 5.
- STEP 5. Check the transmission fluid.
Check the transmission fluid for seizure, fouling, and foreign material. Also, check that the fluid level is adequate.
Q: Is the check result normal?
- YES: Go to Step 6.
- NO: Go to Step 7.
- STEP 6. Replace the torque converter.
Q: Is the failure resolved?
- YES: The procedure is complete.
- NO: Go to Step 7.
- STEP 7. 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.