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International Automotive Technicians Network
Re: Hydroboost noise- 112K miles
Posted to Technical Discussion Forum on 4/17/2024

Always it is air in the system.I sometimes think more is better using vacuum to blead the system. But what I found was it can suck in air from seals. I try it with less vacuum standing and off. Times I have it at idle with a small [...] I do the engine off whe... Login to read more.