Update on Dodge grain truck brakes

b.jones

Member
This past month we have really been busy. On oct 31, I inquired about our 10 wheeler brakes. The pedal would be hard but you had no brakes. Just after that our combine motor caught on fire and we had to change motors from our old parts machine but we did get harvest finished. About a week ago we finally ordered a new brake booster for the truck, $275. It had some air in the lines and was doing the same thing as the old one. I could only get 2 bleed screws open, one on the front and one on the back, but I bleed and bleed the brakes until I was fairly sure I had all the air out of them. They seem to work good now. Thanks guys for your help on this. I had tried to bleed them with the old brake booster but could not get them to have good brakes every time. If the pedal came down and was hard then you had no brakes. It is a relief to know we have good brakes now. Again thanks.
 
Those bleeder screws will open if you heat them red hot and douse them with cold water. In the shop I worked in that was a common everyday method of getting the bleeders open. I would be suspicious that there is still air in the lines that weren't bled out..good luck.
 
If this unit gets very little use it may have more rusted frozen components than just the bleeder screws.

Or blocked hoses, etc.


When a good shop inspects brakes, they inspect it all. If that includes half a day tear down, so be it.
 
When you put the truck away for the winter, or any time it will not be used for awhile, pump the brakes to release the pressure on the the booster. It will last longer as it releases the tension on the internal parts. I got this advise from a guy that does lots of work on grain trucks in Nebraska.
 
Yup, seen it all, hoses that would let fluid into the cylinders and then not let it out due to broken rubber fragments etc, corroded wheel cylinders, crushed lines, frozen shoes, siezed adjusters, siezed cables, everything imaginable wrong in brake systems..including fluid which has never been changed..there can be some real crud in the braking system
 

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