Beretta V6-173 2.8L (1989)
Power Steering Line/Hose: Customer Interest
Power Steering - Shudder/Moan or Vibration
Number: 91-408-3B
Section: 3B
Date: AUGUST 1991
Corporate Bulletin No.: 133209R
ASE No.: A4
Subject: POWER STEERING SHUDDER
Model and Year:
1989 CAVALIER, CORSICA AND BERETTA WITH 2.0L AND 2.8L ENGINES 1990 CAVALIER, CORSICA AND
BERETTA WITH 2.2L, 2.3L AND 3.1L ENGINES 1991 CAVALIER, CORSICA AND BERETTA WITH 2.2L AND 3.1L
ENGINES
THIS BULLETIN CANCELS AND SUPERSEDES DEALER SERVICE BULLETIN NO. 90-326-3B, DATED AUGUST 1990. THE 1991 MODEL
YEAR HAS BEEN ADDED AS WELL AS THE CAVALIER AND CORSICA VEHICLES. ALSO, ADDITIONAL INFORMATION HAS BEEN
ADDED. ALL COPIES OF 90-326-3B SHOULD BE DISCARDED.
MODELS/YEARS:
1990-91 "J" and "L" w/2.2L (VIN G) engine
1990-91 "J" and "L" w/3.1L (VIN T) engine
1990
"L" w/2.3L (VIN A) engine
1989
"J" and "L" w/2.0L (VIN 1) engine
1989
"J" and "L" w/2.8L (VIN W) engine
Condition:
Customers may comment about a shudder, moan or vibration that occurs when turning the steering wheel under the following conditions:
-
Vehicle stopped with brake applied (or moving very slowly)
-
Vehicle in gear
-
Engine at idle speed
The shudder or moan may occur during parking maneuvers or other situations when the steering wheel is turned while the vehicle is
stopped or moving very slowly. It is also sensitive to steering wheel rotational speed as well as engine speed. The shudder is commonly
more severe during hot ambient temperatures.
Cause:
A combination of steering gear valve instability and/or engine firing pulses generating a disturbance that is transmitted through the body
structure.
Correction:
Install a "tuned" power steering return hose and/or high expansion pressure hose between the steering pump and gear.
