Grand Prix V6-191 3.1L (1989)
Power Steering Line/Hose: Customer Interest
Power Steering System - Shudder
Bulletin Number:
91-3-10
Reference Number:
033207
Publish Date:
1/91
Subject:
POWER STEERING SHUDDER (INLET HOSE AND PIPE ASSEMBLY REPLACEMENT)
Models
Affected:
1988-91 GRAND PRIX MODELS WITH 2.8L AND 3.1L
Condition:
Some 1988-91 Grand Prix models with 2.8L (RPO LB6) or 3.1L (RPO LHO) V-6 engines assembled prior to VIN
breakpoints indicated below, may exhibit a slight power steering shudder condition noted during static or low speed turning
maneuvers. This condition may be perceived as a disturbance felt and heard by the vehicle operator through the body
structure and steering wheel.
VIN Breakpoints
Fairfax
MF235638
Cause:
A combination of power steering pump pressure pulses and engine firing frequency generating a disturbance transmitted through the
body structure.
Correction:
Replace the existing power steering inlet (pressure) hose and pipe assembly with new assembly noted below by model year,
with internal tuning cable and high expansion hose material.
1989-90
1991
P/N 26025653
P/N 26026921
Parts are currently available from GMSPO.
Labor Operation Number:
E8622