Subject: | Intermittent Engine Flares, Loss of Power and/or Harsh Shifts, PCM/TC Diagnostic Trouble Codes 22, 23, 24 and/or 26 MP6/MP7 Automatic Transaxles (Replace Intermittently Sticking Transaxle Actuator Valve) |
Models: | 1995 Saturns equipped with MP6 or MP7 automatic transaxles |
Some customers may comment of intermittent engine flares, loss of power and/or harsh shifts malfunction indicator lamp (SERVICE ENGINE SOON telltale lamp) may be illuminated. Diagnostic trouble codes (DTCs) may be stored in the PCM memory as a result of this condition.
These diagnostic trouble codes may be DTC 22 (no 2nd gear), DTC 23 (no 3rd gear), DTC 24 (no 4th gear) or DTC 26 (TCC stuck On). DTCs are set when automatic transaxle fluid temperatures are approximately 90° C (194°F) or higher.
These conditions may be caused by internal components of the automatic transaxle control actuator valve that stick.
Perform the following procedure to repair the concern.
Important: Intermittent diagnostic trouble codes 22, 23, 24 and/or 26 are usually due to an internal clearance condiiton in the automatic transaxle control actautor valve and not the result of iron sediment in the automatic transaxle valvebody. Normally, sticking automatic transaxle control actuator valves do not cause clutch failures.
21002509 - Valve - Trans Control Actuator (Color Coded Red)
To receive credit for this repair during the warranty coverage period, submit a claim through the Saturn Dealer System using the appropriate Labor Operation and Time for the work performed.