My 2002 Ram 1500 4.7L with 70,000 just mysteriously had the ABS and Brake Lights come on and they stay on pemanantly. Also, my speedometer and odometer quit working at the same time. After some research, I came to the conclusion (I call it a conclusion but more like a guess) that the vehicle speed sensors are bad. I am in the process of changing the rear wheel speed sensor that is mounted on top of the differential to hopefully solve the brake and ABS light problem. I went to remove the other vehicle speedsensor that is mounted on the driver side of the tranny and it looks as if there are 2 of them, if I am pulling the correct sensors. Does this sound correct? If there are 2 how can I tell which is the bad one so that I can save myself $50 instead of replacing them both?Any guidance is appreciated. Thanks, Ken

 

hey dude sorry sounds like u know what ur doin but food 4 thought u can get an online mithchell book for about 15 bucks sorry i couldnt be more help i just figured id answer cause ive asked a couple questions and never got 1 didnt want to be like that. however i have a 2003 ram and thottle got stuck today at 50 (i floored it at a light) but this shouldnt hapen so if its not to much trouble can u email me with ur results in case i have this prob.thanks allprocarpet1993@aol.com

 

also i forgot if u go to justanswer.com youll get the answer in about 10 min from a dodge mech but it will cost u 9 bucks but it might be faster than this forum it kinda confusing and nobody answers.

 

I finally had to break down and take my truck to the dealership for repair. The Power Distribution Supply was corroded and needs replaced. There is a national back order on the part with a 12 day wait. Sounds like this is a common problem with the vehicle then, although I would wonder how a vehicle that is 6 yrs old and only 70K miles would have parts corroding away already. Just thought I would post in case anybody had this problem or was wondering the cause.