Duramax Lifetime Supporter
Join Date: Oct 2016
Location: Maurice, LA
Could be the Powe Steering pump cavitating............It is a sign the pump needs replaced.
When you replace it, Id change ALL the lines between the pump, Hydroboost, steering knuckle and the pump itself.
2008 Silverado 2500HD CCSB LTZ Diesel
FASS 95 Lift Pump (with Baldwin filters), Edge Insight CTS Monitor on a Windshield Mount, Nicktane Fuel Filter Adapter w/ CAT 306-9199 UHE tertiary fuel filter, Bilstein 5100 Stock Height, Bushwacker Bed Rail Caps, AMP Research Bedstep, Fumoto oil drain valve, Dorman PS Oil cooler, Pioneer AVIC 7200NEX GPS/Stereo, Air Lift LoadLifter 5000 Air Bags.