Can anyone give me some advice on the rotors on my 04 Dodge Ram 1500? They have been replaced three times and keep warping. I am not a racer, just a grandma that drives the truck to work and pleasure. Is there a way to tell if the master cylinder is not working? The capliers have been changed.

 

The Ram's stock calipers are notorious for cylinder jams or uneven application of braking force, which can cause the rotors to warp. Next time your at it, replace the calipers, that's what I did 10k miles ago, and the brakes still look and feel brand new.

 

What did you get for replacement calipers?

 

Take outlaws advice. Hand torque only.

 

I bought apair ofBAER sloted and cross drilled rotors they have a 35,000 mile warrenty for not warping but they were 310 dollars though

 

Definately hand torque the wheel lug nuts.
Also, do not resurface your old rotors.Get new rotors asturning the old ones to "true them up" does not get rid of the changes deep within the metal. That's why you see so many posts of people complaining, that their rotors have warpped yet again.
Also, when you replace the rotors and pads, make SURE you follow the "bedding in" process to the letter!
It'scrucially important.
Check on your callipers to make sure they are not "dragging". Also make sure the slider bolts are well greased up and alow the caliper to "float freely" on the caliper adaptor.
Biggest thing about brakes, learn how to brake efficiently and do not leave your left foot hovering/over the brake pedal.
If, after a long period of heavy breaking, say down a long hill, do not sit with your foot on the brake when you stop.
This allows the pads to sit on the super heated rotor in the same place, causing a footprint of pad material to "bond" with the rotor. This will cause the warp many complain of.
Hope this helps???
Al.