hydro boost issue?
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Well I'm not in your shoes so I'm not certain.. but these hydroboost pumps are goofy. They are tied into your brake system, so it's not unusual to feel the pedal pulsating etc. But these trucks are huge; when turning at full lock you are creating a lot of drag, so it "feels" like the brakes are put on, but it's just drag thats killing your momentum.
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Well heres some personal experience with the hydroboost; keep in mind my cummins did NOT do this though..
In my 7.3 psd, if I tapped the brakes repeatedly while going slow and turning the truck, or while parked and cranking the wheel and tapping the brakes, it would pulsate the steering wheel. They are a system thats completely connected to each other and share functions. If your power steering or braking system fails, so does the other. I say stick some Lucas stop squeel or whatever in it and see what happens. That stuff rocks man.
In my 7.3 psd, if I tapped the brakes repeatedly while going slow and turning the truck, or while parked and cranking the wheel and tapping the brakes, it would pulsate the steering wheel. They are a system thats completely connected to each other and share functions. If your power steering or braking system fails, so does the other. I say stick some Lucas stop squeel or whatever in it and see what happens. That stuff rocks man.