I have replaced the master cylinder and the speed sensor in the rear axle
The warning lights mean there should be a trouble code stored in the body computer. I would start there.
When the ABS system is inop it may prevent the cruise from working too. Sometimes a hydraulic brake system failure will turn the ABS light on too. After repairs you would need to scan the system to turn the light off with most vehicles.
Are the brake lights in the rear of the truck staying on ?
SOURCE: 1996 dodge ram 3500, abs brakes are locking up
is it the front or rear locking up? you really have to have this truck loaded (load valve under bed) before the back brakes come on and i think these are the same as my 1999 2500 where the rear is only abs, and not on the front..dumb design i know, but thats how it is...determining if its rear abs only and which axle is locking up will help pin point the problem...i put 100000 miles on my dodge since i got it in 2001 and i put 8 sets of pads on the front and just changed the rear lining and thats only because the rear wheel cylinder was leaking causing the rear brakes to lock up..
SOURCE: ABS LIGHT AND BRAKE LIGHT STAY ILLUMINATED
As far as the cruise control look under the battery, drivers side one if a diesel and there is a vacume line for the cruise. This vacume line always breaks right under the battery causing the cruise not to work.. Ive owned 2 2nd gen dodges with non working cruises and this was the problem on both.
SOURCE: Cruise control not working
The pump is located on the passenger side of the engine compartment, back by the firewall. Look in the middle of the firewall by the cowl and you'll see a small plastic line going into the cowl. follow it back and you will come to a T fitting. Follow it to the passenger side and it will go into the Vacuum pump that controls the Cruise control.If you follow it to the other side, it goes under the Battery box. this is where the Servo for the cruise is located. Check the lines for small cracks, wear spots or even breaks. The plastic line can get beaten up pretty easily.
The easy way to see if it is your vacuum pump, turn the key on and listen. you will hear 2 distinct sounds. The first sound will stop in about 15 - 20 seconds. (fuel pump?) the second sound is the vacuum pump. If it turns off in 45 seconds to a minute (or slightly longer) the vacuum pump is probably ok, as are the plastic lines. The sound of the pump stopping means that vacuum has been achieved and is holding vacuum. If it keeps running, the pump is bad or the lines have a break in them. If the lines have had a hole in them for a long time, the diaphragm in the pump will have gone south. This is not a servicable part and the pump will have to be replaced. The pump is available from a dodge dealer but most likely the parts guy will not have a clue as there is no picture in their manual and a very poor description. When talking to them ask for a "03 Ram 2500 CUMMINS Cruise vacuum pump"
The part costs $212.70
SOURCE: 2001.5 Dodge Ram Diesel 2500 4x4 Brake Pedal drops to floor
It sounds like you have a bad mastercylinder cause when you panic brake it doesn't have time to bleed through the valve in the cylinder but under normal braking your foot is on pedal longer in turn giving the fluid time to bypass the valve in the mastercylinder in turn the pedal going to the floor.
Testimonial: "thnx"
SOURCE: I Have a 2002 Dodge Ram 2500.Both the ABS and Brake Lights are on
Did you lift the truck at all? What I found with mine is that the abs sensor lines are too short and once they get pulled it gives the female to male connection a bad connection thus the light stays on. Is your abs system activating when trying to brake? The bad connection could be the problem. Why did you replace both abs sensor lines?
4,435 views
Usually answered in minutes!
×