Regal V6-231 3.8L VIN L SFI (1990)
Power Steering Line/Hose: All Technical Service Bulletins
Power Steering - Moan/Shudder
Bulletin:
91-3-14
Date:
May '91
Ref. No.: 91-185-3
Corp. Ref. No.: 133204
SUBJECT:
POWER STEERING MOAN/SHUDDER
(REPLACE INLET HOSE, FLOW CONTROL VALVE AND SHIELD ALTERATION)
MODELS AFFECTED: 1990-91 REGAL MODELS WITH 3800 V6 ENGINE (VIN CODE L)
This bulletin cancels Bulletin 91-3-3 dated December, 1990 entitled "Power Steering Moan". Information contained in this bulletin will address both
power steering moan and shudder, provide new part numbers and revised service procedure for correction of condition based on vehicle model year.
Please discard Bulletin 91-3-3.
CONDITION:
Some 1990-91 Regals with 3.8L V6 engines (VIN Code L) and assembled prior to VIN M1858118 may exhibit a slight power steering moan/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.
CAUSE:
A combination of power steering pump pressure pulses and engine firing frequency generating a disturbance transmitted through the body structure.
Figure 1
