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Old 12-13-2008, 06:57 PM
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Question hydroboost brake system

whats up guys, been having some braking issues with the truck, i have replaced everything, down to pads, rotors, caliper, lines. the thing is whenever i get on the go pedal and then have to brake after, or if i power brake the truck then it starts to whine. the pedal like tingles and seems like it vibrates when you push it down, im wondering if the hydroboost is bad? i know they leak sometimes if they are but i dont have any fluid leaking anywhere unless it just goes into the booster?!?! i know no idea, i figured i would ask some of you guys. maybe someone has replaced it. if thats the case then i have no problem replacing it, i just want a good braking truck again.

thanks in advanced guys!
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Old 12-13-2008, 11:50 PM
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Originally Posted by 03f250stroke View Post
whats up guys, been having some braking issues with the truck, i have replaced everything, down to pads, rotors, caliper, lines. the thing is whenever i get on the go pedal and then have to brake after, or if i power brake the truck then it starts to whine. the pedal like tingles and seems like it vibrates when you push it down, im wondering if the hydroboost is bad? i know they leak sometimes if they are but i dont have any fluid leaking anywhere unless it just goes into the booster?!?! i know no idea, i figured i would ask some of you guys. maybe someone has replaced it. if thats the case then i have no problem replacing it, i just want a good braking truck again.

thanks in advanced guys!
Could be a power steering pump issue.
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Old 12-14-2008, 03:52 AM
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Check the fluid level, if its full then its probably the pump. Does it whine when you turn the steering wheel? If it does its definatly the pump.
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Old 12-14-2008, 06:17 AM
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yeah this is what happens, if i get on the go pedal and let off and say hit the brake, then it whines, makes noises when i turn the wheel, brake pedal is real soft, spongy almost. vibrates/tingles when i press it down.

so you guys are saying the power steering pump? arent they linked together, the steering and braking?
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Old 12-14-2008, 06:21 AM
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the power steering provides the assist for braking just like a Vacuum booster does on passenger car.
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Old 12-14-2008, 06:22 AM
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Originally Posted by 03f250stroke View Post
yeah this is what happens, if i get on the go pedal and let off and say hit the brake, then it whines, makes noises when i turn the wheel, brake pedal is real soft, spongy almost. vibrates/tingles when i press it down.

so you guys are saying the power steering pump? arent they linked together, the steering and braking?
You need a new powersteering pump. That will fix your problem.
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Old 12-15-2008, 04:22 AM
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alright, im gonna go with the ps pump then. i just dont want to deal with that terrible sound or crappy braking anymore
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