Power Steering - Shudder

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Number: 90-442-3B

Section: 3B

Date: MARCH 1992

Corporate Bulletin No.: 233204

ASE No.: A4


Subject:
POWER STEERING SHUDDER


Model and Year:
1990 CELEBRITY WITH 3.1L ENGINES





Condition:
Some 1990 A-cars with 3.1L V-6 engines (RPO LHO) may exhibit a slight Power Steering shudder condition noted during static or low speed turning maneuvers. This condition may be perceived by the vehicle operator as a disturbance felt and/or heard through the body structure and steering wheel.

Cause:
A combination of Power Steering pump pressure pulses and engine firing frequency generating a disturbance through the body structure.

Correction:
Replace the existing Power Steering return (outlet) hose and pipe assembly (steering gear to cooler pipe) with new assembly indicated below, which includes internal tuning cable.

Parts Required


Part Distribution Part Number Quantity

Power Steering Return 26034284 1
Hose and Pipe Assembly

Clamp 22527587 1

Removal and installation procedures shown in applicable Service Manual, Section 3B (Power Steering Gear and Pump) and those provided in attached ILLUSTRATION must be followed to insure proper installation and operation.

Part Availability:

Parts are currently available from GMSPO.

Warranty Information:


Labor Operation:
T1436

Labor Time:
0.7 Hrs.