There are several TSBs from GM on “Power Steering Shudder.” Some have been solved by replacing the power steering gear and/or the power steering high-pressure line. The exact cause should be diagnosed using the GM TSB for this, GM TSB 05-02-32-008A.
Chino Autotech Inc., Auto Club SoCal AAR
SAE Int'l SoCal Section Board of Governors
Vice Chair, Service Technology Programs
NASTF Service Information/Communications Committees
Auto Value/Bumper-To-Bumper CSC Nat'l Council
ASE CMAT-L1, CA. Smog Check Technician
AMI AAM Accredited Automotive Manager