The Stovebolt Site Forums The Parking Lot Big Bolts Brake Problems

Hi,

Bleeding sequence should be...

As stated above you have to "Start" bleeding at the Hydro-vac unit first.

There should be 2 bleeder screws, one is just above the line coming in from the master cylinder, that is the first one to bleed, the other one, on top is the second one to bleed.

Then start with the left rear wheel. If the brake lines run down the right frame channel. Else, reverse procedure sequence. But Hydro-vac comes first and last.

Question: Does you truck have 2 brake cylinders per wheel? Are they mounted top and bottom or are they mounted one on each the side on the backing plate???.

If top and bottom do the top first then the bottom. If sides, then this is tricky do both at the same time very slowly, if you can.

Then do the right rear, then left front and last right front.

Then go back and do the Hydro-vac again.

Do not start the engine to bleed the brakes.

Also, Depending on which axles are in your truck. There may be a bolt with a lock nut in the backing plate, mid-way of the arc of the brake shoe. This is an adjustment to align the brake shoe to center of the brake drum. If this is out of adjustment it can cause the wheels to lock up or drag and not return to relaxed position.

Then again I may be all wrong.

Good Luck
GMCPic