DZLPWR

I had a brake line go bad just above the load sensor valve, rusted up and got a pin hole. All the fluid dranined out of the system.

Anything special i should do when re-filling besides bleeding real well? I think im going to pick up a vaccum bleeder to help. What a great way to start a moday. Thanks -Jake

Geico266

Don't use the vacuum bleeder too much. (too much vacuum) you can suck air and crud from around the cylinders causing more problems. Been there, done that. In fact I would recommend you NOT you a vacuum system.

MnTom

I think the best way is to go rent a power bleeder. That way you will push the fluid through. I tried using a vacuum pump and I don't know if it was too much or what, but I had to bleed the rear brakes "the old fashioned way" to get any kind of pedal back.
Tom

DZLPWR

I assume that a power bleeder "pushes" the fluid through the system? Ive bled them the old fashsioned way before. Just wanted to try something easier and try not to mess up the master cyl. by pushing the pedal too far like infidel says.

infidel

I've never had a problem with a vacuum bleeders, use them all the time, don't see how it could suck air and crud from around the cylinders when the only opening is the reservoir. Now maybe if you opened all your bleeders at once then sucked at just one you could run into trouble, but why do that?

Geico266

All I know is I used the vacuum bleeder and pulled air into the system. All I was doing was changing fluid. I had not opened the system. I had to gravity bleed the brakes to get the air out.

MnTom

When I did mine, I used a 4cfm vacuum pump. Did a 4 wheels and got in the truck and the pedal was on the floor and wouldn't even pump up. I had my son (who kept the MC full entire time) pump the pedal and I re-bled the rears and VIOLA!!! had better brakes than I have ever had. I don't know how the rears got air in, but they did.
Tom

wgingg

powewr bleeders are the fastest and easiest way to go. a little air pressure and a full tank of fluid, crack this bleeder then that one and your done