If the brake and ABS lights are both on, you have a tiny leak somewhere inMy daughter has a 2001 Dakota. Yesterday her brake light and ABS light came on. The pedal seems to be going down further than it should. I checked the brake fluid, it was fine and I couldn't find any leaks. Any ideas where to start now?
I can't see how the rear shoes (2001 still has brake drums) being a bit outI couldn't find any kind of leak. I then got to thinking maybe the rear brakes were not self adjusting properly. I drove the truck in reverse while tapping the brakes, pedal firmed up and lights went out.
Well sometimes you can't always trust your gut completely.I have the same problem with the two lights and soft pedal, so since My dak is my daily driver I decided to check every thing that could fail,
Checked all wheel cylinders, all dry, checked all lines. No leaks.
My gut was telling me it was under the hood, turns out I have
a busted rubber plunger in the control valve....and now I need to find
a replacement....asked a mechanic and he said that if that seal is busted
It will cause an unbalanced pressure wich will cause the same simptoms but
With no leaks visible...you do have to remove the valve to get to this seal unfortunately...
What is the RWAL valve you are referring to?So for now in order to have it inspected I'll have to bypass the rwal valve all together until I can fix/replace it.. If you don't have any visible leaks this definately a possible cause...
and yes if I pump the pedal it firms up and the lights go out until I press the pedal again....
abs and brake light on and brakes work but spongy
Hello, and Thank you for letting me join this sight, been on here a lot , just now joining. Here is my predicament.
Went out of town for 3 days, leaving truck sit on a pretty good incline, with nose going down incline. Upon returning jumped in truck, and headed to town, about a mile down road, ABS and Brake light came on, and brakes got a little spongy, by the time i got back home, brakes were awful spongy. Brakes needed replaced. Replaced front and rear brakes, Which upon passengers side E-Brake cable was broke. Replaced everything on rear except, wheel cylinders. Brakes not quite as spongy as before, but still not real good. Have checked for leaks, finding nothing, brake level in resorvoir never drops, any thoughts would be appreciated.
I have a 2000 Dakota 2wd with positive traction, rear ABS and a 4.7 w/automatic transmission.
One day the Brake and ABS lights came on and the pedal started fading.
Nothing had been done to the vehicle.
There is a sensor on the differential, parking brake switch is fine and all pads/shoes are fine, no leaks, and the speedometer works fine. Added about a half cup of fluid (no level sensor on this vehicle), no change to the problem
So since the truck is 20 years old and the fluid was dirty, I replaced the master cylinder with a new one that I bench-bled before installation (as it was a little cruddy too) and bled all brake lines. Still no change
The shuttle valve switch for front/back brake line pressure loss was open (closed is bad), checked the switch and it works fine
There was nothing else I could check so I did a test. I bought a 3/16" (M10x1) bubble flair union (AGS #BLU-8C from any auto parts store) for about $4. I disconnected the lines from the ABS control unit, and put the union in place of it, bled the rear brakes and the pedal returned to normal and the lights went out. So the ABS unit was the problem source.
BTW, I had called the Dodge/Ram dealer and they would not even look at it saying they probably could not get parts for it anyway.
As far as the problem, the ABS unit is the most likely suspect, as far as a fix, that is up to you. Good luck!