EXPERTEC TSB (94-T-43)

Publication date: 1994-10-10
Reference number: 94-T-43

EXPERTEC TSB

TECHNICAL SERVICE BULLETIN

Reference Number(s): 94-T-43, Date of Issue: 10/10/94

REPEATABLE ENGINE FLARE - LOSS OF PERFORMANCE

Model(s): 1995 Saturn equipped W/MP6 or MP7 automatic transaxles

Bulletin No.: Saturn 94-T-43

Date: 10/10/1994

SUBJECT

Repeatable Engine Flare, Loss of Performance, Delayed and/or Harsh Engagement into Reverse (Replace Damaged Piston Seal)

MODELS AFFECTED

1995 Saturns equipped with MP6 or MP7 automatic transaxles

CONDITION

Some customers may comment of a repeatable engine flare, loss of performance, delayed and/or harsh engagement into Reverse and malfunction indicator lamp (SERVICE ENGINE SOON telltale lamp) may be illuminated. Diagnostic trouble codes (DTCs) may also 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) and/or DTC 24 (no 4th gear). DTCs may be set at any transaxle fluid temperature.

CAUSE

These conditions may be caused by a piston seal that may have been damaged during automatic transaxle assembly.

CORRECTION

When diagnosing diagnostic trouble codes 22, 23 or 24, follow the procedures in the "Automatic Transaxle Service Manual" corresponding to the appropriate diagnostic trouble code(s). When diagnosing a delayed and/or harsh engagement into reverse, with no DTC present, refer to the diagnostic chart in this bulletin.

NOTE: A delay and/or harsh engagement into Reverse may be caused by a small leak at the 2nd/Reverse piston seal which does not appear to cause any problem in the application of the second clutch. A no reverse condition may be caused by a large leak at the 2nd/Reverse piston seal. Damaged piston seals do not normally cause automatic transaxle clutch failures.

CLAIM INFORMATION

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.

BULLETIN ILLUSTRATION LIST

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