hydroboost brake system

[03f250stroke]

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!

[dhanna6powerstroke]

Originally Posted by 03f250stroke

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.

[460+]

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.

[03f250stroke]

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?

[sikktruk01]

the power steering provides the assist for braking just like a Vacuum booster does on passenger car.

[dhanna6powerstroke]

Originally Posted by 03f250stroke

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.

[03f250stroke]

alright, im gonna go with the ps pump then. i just dont want to deal with that terrible sound or crappy braking anymore