Project: Blue Heep
CF Veteran
Joined: Jul 2010
Posts: 1,208
Likes: 1
From: Albuquerque
Year: 1999
Model: Cherokee
Engine: 4.0
Nice! Jeep looks great!
As far as the brake lines go. I had never done it before either, and it was really simple. Just be careful, becuase brake fluid will take off paint. I also did a complete flush of the brake system at the same time, because the fluid was looking pretty bad. It's not hard at all to change the lines.
As far as the brake lines go. I had never done it before either, and it was really simple. Just be careful, becuase brake fluid will take off paint. I also did a complete flush of the brake system at the same time, because the fluid was looking pretty bad. It's not hard at all to change the lines.
CF Veteran
Joined: Jul 2010
Posts: 1,208
Likes: 1
From: Albuquerque
Year: 1999
Model: Cherokee
Engine: 4.0
Yes, you have to bleed the brakes, to get the air out of the lines. Bleeding them was very simple. Here's what i did:
Get two liter bottle of whatever, and cut it in half. Put some brake fluid in that. Get some clear acryllic tubing, make sure it fits snug over the bleeder valve on the brakes (on the rear drums, it's at the top, in the back). Put the acryllic tubing over the valve, with the other end submerged in brake fluid. Have someone depress the brake pedal, and hold it. Slowly open the bleeder valve (i beleve it was an 8mm wrench) at which point air bubbles should come out. While the other person is holding the pedal, close the valve and have them let off the pedal. Repeat, until there aren't any air bubbles coming out. Do that for all brakes. Always start at the farthest from the brake booster. (Passenger rear, driver rear, passenger front, driver front).
A couple of tips:
Make sure you keep the end submerged in brake fluid at all times (the end in the bottle), because when letting off the pedal it's sucking fluid through it. If it's not submerged, it will suck air, and you will have to repeat the entire process.
Before starting, open the fluid resovoir (sp?) and leave the cap off. Make sure there is always fluid in it, also. When the resovoir is open, make sure whoever is working the pedal push it in slowly, so fluid doesn't splash out.
Sorry for the extremely long post, but that's how i did it and it was very simple!
Get two liter bottle of whatever, and cut it in half. Put some brake fluid in that. Get some clear acryllic tubing, make sure it fits snug over the bleeder valve on the brakes (on the rear drums, it's at the top, in the back). Put the acryllic tubing over the valve, with the other end submerged in brake fluid. Have someone depress the brake pedal, and hold it. Slowly open the bleeder valve (i beleve it was an 8mm wrench) at which point air bubbles should come out. While the other person is holding the pedal, close the valve and have them let off the pedal. Repeat, until there aren't any air bubbles coming out. Do that for all brakes. Always start at the farthest from the brake booster. (Passenger rear, driver rear, passenger front, driver front).
A couple of tips:
Make sure you keep the end submerged in brake fluid at all times (the end in the bottle), because when letting off the pedal it's sucking fluid through it. If it's not submerged, it will suck air, and you will have to repeat the entire process.
Before starting, open the fluid resovoir (sp?) and leave the cap off. Make sure there is always fluid in it, also. When the resovoir is open, make sure whoever is working the pedal push it in slowly, so fluid doesn't splash out.
Sorry for the extremely long post, but that's how i did it and it was very simple!
as for brakes I would bleed them all while under there.
Spray PB Blaster on the rear bleeders a few days before and then again 20 min before trying to crack them.


