TRANS BINDS IN REVERSE/CREEPS IN NEUTRAL (SERVICE PROCEDURE). Saturn Saturn 1993

For 1990-2009 cars

# TRANS BINDS IN REVERSE/CREEPS IN NEUTRAL (SERVICE PROCEDURE)

#### SUBJECT: Automatic Transaxle Binds in Reverse and Creeps in Neutral After Repair (Check for Proper Clutch Pack Installation)

Due to revisions in the affected model years, this bulletin supersedes bulletin 91-T-37, which should be discarded.

#### MODELS AFFECTED: 1991 - 1994 Saturns equipped with automatic transaxle (MP6/MP7)

CONDITION: The transaxle binds when shifted into R (Reverse), and the vehicle creeps when in N (Neutral) after transaxle has been repaired in the field.

CAUSE: During reassembly of the transaxle in the field, it is possible to install a gear and hub assembly into the clutch pack without engaging all the clutch plates in the pack. If the clutch and gear assembly are installed with the clutch plate tangs not aligned, the hub of the gear will pinch against the plate that has not been engaged and cause the clutch to bind - up.

CORRECTION: This bulletin provides a way to verify the correct assembly of clutch assemblies during field repairs. The following procedure must be used during transaxle assembly to make sure that all clutches are properly assembled.

INSTALLATION OF GEAR/HUB ASSEMBLY INTO CLUTCH --------------------------------------------- While installing the clutch pack, rotate the gear and hub assembly back and forth to align the clutch plates. If you are not sure that all the clutch plates have been engaged, lift the gear out of the clutch housing and verify that all clutch tangs are aligned.

#### VERIFY PROPER INSTALLATION

After the input and output shaft nuts have been installed, verify proper operation.

1. Engage park pawl.

2. Rotate the input shaft by turning the 1st clutch housing. The clutch housing should turn freely in both directions.

a. If input shaft turns freely in only one direction, the 1st clutch is binding.

b. If input shaft will not turn freely in either direction, 2nd, 3rd or 4th clutch is binding.

General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.