Just got a 2004 E-350 C-class motorhome package and am getting an ABS lite on dash while feeling a pulsating on brakes??? Any ideas???

Also have a dead miss assuming it is 1 of the 10 coils and/ or plugs I am open to any feedback on these issues......
Thanks for any input !!!! :

 

A good portion of the time either a wheel speed sensor or a connection from one of the sensors will give this result. Also a questionable wheel bearing can do it too.
If the coils on the vehicle are original, and the mileage is over 50,000 mi. ,that's when the coils start to act up. 10 coils can get expensive, but keep in mind a bad coil can wipe out the computer and that costs more than all the coils put together. Be careful if you decide to use aftermarket coils. Found it better to stick with OEM ,Motorcraft, coils.