So I changed the drum brakes on my 06 ranger. Changed out both wheel cylinders, but when trying to bleed the brake system. Brake pedal went stiff after a few pumps. Brake master cylinder has brake fluid an I don't know what could be. Had the brake booster, ABS, an master brake cylinder changed about 5 years ago. What could be the problem? Is there a process I gotta follow that I missed?
To clarify, does the pedal get stiffer with the engine off or on?
Every time I try to bleed it, yeah it's off. An when I turn on the truck the pedal does drop. I'll give it a try with the engine on, see if that does the trick.
I don't know if this is what you are refering to, but that is normal. After you shut the car off, each time you pump the break pedal, it gets stiffer and stiffer.
I agree. That's completely normal for when the engine is OFF. If it's on and it does that, then that's a problem with the booster. That's a great sign that there are no leaks and no air in the system.
Say y'all, so I tried going at it again with the engine on but nothing. Pedal goes down bout an inch an thats it. I literally opened both rear bleeders but nothing came out. What could it be??
Did the fluid flow out freely when you bled the brakes until the pedal stopped moving? Have you tried bleeding a different wheel, andif so did the fluid flow properly and the brake pedal move appropriately?
I started with the rear passenger tire, an yes there was fluid coming out. Pumped it a couple times before the pedal went stiff. Tried the rear driver side, but that one had no fluid flowing.
I'm not familiar with the Ford ABS system, but I know that other ABS systems make brake bleeding considerably more complex - perhaps this situation is driven by your ABS system.