Inspection Procedure 3: The Acceleration Is Poor

INSPECTION PROCEDURE 3: The acceleration is poor.

TROUBLESHOOTING HINTS (THE MOST LIKELY CAUSES FOR THIS CONDITION:)
^ Malfunction of the engine
^ Malfunction of the TCM
^ TCM power supply or ground failure
^ Malfunction of the torque converter
^ A/T failure: Hydraulic system (valve body assembly), driving force transmission system (clutch/brake)

DIAGNOSIS

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.