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INSPECTION PROCEDURE 2: Does not Move Forward: Diagnosis

WARNING: This page is about a different car, the 2005 Dodge Stratus and 2005 Chrysler Sebring. However, it is still accessible from the selected car via links, so may be relevant.

Required Special Tool: 

  1. STEP 1. Using scan tool MB991502, check actuator test item 02: Underdrive Solenoid Valve. 
    CAUTION: To prevent damage to scan tool MB991502, always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool MB991502.
    1. Connect scan tool MB991502 to the data link connector.
    2. Turn the ignition switch to the "ON" position.
    3. Set scan tool MB991502 to actuator test mode for item 02: Underdrive Solenoid Valve.
      • An audible clicking or buzzing should be heard when the underdrive solenoid valve is energized.
    4. Turn the ignition switch to the "LOCK" (OFF) position.

    Q: Is the solenoid valve operating properly? 

    YES  : Go to Step 2.

    NO:  Repair or replace the underdrive solenoid valve. Refer to VALVE BODY . Then confirm that the symptom is eliminated.

    Fig 1: Connecting Scan Tool To Data Link Connector
    G04542392Courtesy of CHRYSLER CORP.
  2. STEP 2. Check the hydraulic pressure. 

    Shift the selector lever to the "L" range then measure the hydraulic pressure of each element in 1st speed to check and see if each respective hydraulic pressure is within the range of standard pressure. Refer to HYDRAULIC PRESSURE TEST .

    Q: Is the hydraulic pressure within the standard value? 

    YES  : Go to Step 3.

    NO:  Go to  Step 4.

  3. STEP 3. Check the underdrive clutch system. 
    1. Remove the valve body cover and valve body. Refer to TRANSAXLE ASSEMBLY  and TRANSAXLE .
    2. Blow 108 kPa (15psi) compressed air into the underdrive clutch oil orifice of the transaxle case, and check if the underdrive clutch piston moves and air pressure is maintained in that condition.

    Q: Is the air pressure maintained? 

    YES  : Go to Step 4.

    NO:  Go to  Step 6.

    Fig 2: Locating Underdrive Clutch Oil Orifice
    G04542393Courtesy of CHRYSLER CORP.
  4. STEP 4. Disassemble and clean the valve body. 

    Check the O-ring installation bolts for looseness and valve body for damage. Repair or replace the faulty parts. Refer to VALVE BODY .

    Replace the valve body assembly if the damages are thought to be irreparable. Then check the symptom.

    Q: Is the symptom eliminated? 

    YES  : The procedure is complete.

    NO:  Go to Step 5.

    Fig 3: Identifying Valve Body Assembly
    G04542394Courtesy of CHRYSLER CORP.
  5. STEP 5. Check the oil pump. 
    1. Remove the transaxle assembly.
    2. Check the oil pump (incorrect installation, damage and etc.) and replace the oil pump assembly if necessary (The oil pump cannot be disassembly). Refer to TRANSAXLE . Then check the symptom.

    Q: Is the symptom eliminated? 

    YES  : The procedure is complete.

    NO:  Go to  Step 7.

    Fig 4: Identifying Oil Pump
    G04542395Courtesy of CHRYSLER CORP.
  6. STEP 6. Check the underdrive clutch. 
    1. Remove the transaxle assembly.
    2. Check the facing for seizure and the piston seal ring for damage and interference with the retainer. Repair or replace the faulty parts. Refer to UNDERDRIVE CLUTCH AND INPUT SHAFT . Then check the symptom.

    Q: Is the symptom eliminated? 

    YES  : The procedure is complete.

    NO:  Go to Step 7.

    Fig 5: Locating Underdrive Clutch
    G04542396Courtesy of CHRYSLER CORP.
  7. STEP 7. Replace the PCM. 

    Q: Is the symptom eliminated? 

    YES  : The procedure is complete.

    NO:  Start over at  Step 1.

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