New ABS Modulator Assembly. Saturn Saturn 1992

For 1990-2009 cars

# New ABS Modulator Assembly

Subject: | Service Information on New ABS Modulator Assembly

Models: | 1991-1994 Saturns equipped with antilock brake system (ABS option JL9)

### Purpose

Vehicles equipped with ABS brakes and produced after the including VIN RZ244699 are built using a new design ABS modulator assembly containing the following two changes:

• | The new 2nd design ABS modulator gear cover material has changed from plastic to aluminum and is now attached to the ABS modulator assembly with two ABS modulator gear cover screws instead of six ABS modulator gear cover screws as used in the old 1st design.

• | The new 2nd design ABS motor pack assembly attaches to the ABS modulator assembly with two ABS motor pack assembly screws instead of four ABS motor pack assembly screws as used in the old 1st design.

### ABS Motor Pack Assembly to ABS Modulator Assembly

1st Design

2nd Design

The 1st design ABS modulator assembly as a plastic ABS modulator gear cover (P/N 21011768) that is retained to the ABS modulator assembly with six ABS modulator gear cover screws. The 2nd design ABS modulator assembly has an aluminum ABS modulator gear cover (P/N 21012219) that is retained to the ABS modulator assembly with two ABS modulator gear cover screws. (Note: The 2nd design ABS modulator assembly may still have six threaded holes.)

If installing or replacing an ABS modulator gear cover on an ABS modulator assembly which has six threaded ABS modulator gear cover screw holes, a 1st design (plastic) or 2nd design (aluminum) ABS modulator gear cover may be used. If installing or replacing an ABS gear cover on an ABS modulator assembly which has two threaded ABS modulator gear cover screw holes, a 2nd design (aluminum) ABS modulator gear cover must be used.

Make sure to use six screws if the replacement gear cover is plastic and two screws if the replacement gear cover is aluminum.

Tighten:
Tighten Plastic Cover (1st design-six screws) to: 2.75 N·m (25 lb in)

Tighten:
Tighten Aluminum Cover (2nd design-two screws) to: 4.0 N·m (35 lb in)

### ABS Modulator Gear Cover to ABS Modulator Assembly

1st Design

2nd Design

The 1st design ABS modulator assembly uses four ABS motor pack assembly screws to retain the ABS motor pack assembly. The 2nd design ABS modulator assembly uses two ABS motor pack assembly screws to retain the ABS motor pack assembly. The 2nd design ABS modulator assembly may have two or four threaded holes for the ABS motor pack screws.

When installing or replacing an ABS motor pack on an ABS modulator assembly with four ABS motor pack assembly screw holes, it may be installed using four ABS motor pack assembly screws at all four locations, or using only two ABS motor pack assembly screws at the outboard locations. When installing or replacing an ABS motor pack on an ABS modulator assembly with two ABS motor pack assembly screw holes, it can only be installed using two ABS motor pack assembly screws.

Tighten:
Tighten ABS Modulator to ABS Motor Pack to: 4.5 N·m (40 lb in)

### Parts Information

21011769 | Modulator Asm-ABS
21010916 | Motor Pack Asm-ABS
21011768 | Gear Cover Kit-ABS Mod (Plastic)
21012219 | Gear Cover Kit-ABS Mod (Aluminum)
Important: When 1st design parts are depleted from Saturn Service Parts Inventory, the 2nd design parts will be used to service all applications