I have new rotors, calipers, pads, and bearings.

When I apply pressure to the brakes they will not release. If I open the bleeder screw they release. As far as I can tell its only the front. I did already bleed the whole system as well.

The brake system is all the same as a chey 1 ton of the same or similar year. It has the bendix type calipers w/ hydro-boost.

I have never worked on a hydro-boost so there may be something I am missing, or its the master cylinder. Just wanted a second opinion before replacing it.

it is a 78 g30 motorhome dually

 

Sometimes the hoses can fail and act as a check valve.Try opening the lines at various points to locate the restriction.

 

Is there a solution I could run through the lines or just unhook and let gravity bleed or pump through?

It did seem like it was taking excessive pressure to stop abruptly.

 

Nothing I know of.

 

It was indeed both front brake hoses were bad. Thanks for your help.

Chris

 

Thanks for lettin us know. For future reference the rubber parts on something that sets around fail rather fast. Keep an eye on hoses,belts,and tires.

 

I am new and cant figure out how to post!84 Impala 305 4 barrel 70,000 ACTUAL mi.wont run well with coolant sensor hook up dead miss and loss of power, unhooked runs much better at about 90 %,,,,if you can start me in the right direction i would appreciate it.Will not run good with replacement of TX1,2 wire sensor.I wonder if i found wire for new TX1 temp. sensor would it fix it,ALSO IS THIS POSTED IN THE RIGHT PLACE

 

Thanks for good info here.