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Just hook your air compressor into the front service gladhand and it will apply the brakes. It could be a sticking inversion valve as well. If you have not downloaded the p2p program i would do so. I know where every air line on the truck goes and its operation and i still have gremlins that...

You do not need to pump air brakes. Pumping air brakes just loses air pressure. Apply them firmly and you should have a pedal. You should apply them and your air pressure should drop 10psi on a tank and hold pressure while the pedal is applied. Is the truck jacked up so that you know all the...

Well then you need a new insurance company then. You can simply swap the abs modules with R8 modules and its a non abs truck at that point. Since abs was an add on it takes 20mins to swap both valves. My insurance company knows my abs system is inop and i am still covered for 1 million on...

There is such a thing as bad parts. even NOS. If you have a water tanker on it then you really don't need ABS as it will keep the tires down with the weight. The abs upgrade was mostly for empty trucks traveling at highway speeds sudden braking and the rear end lifts. Fuses are easy to get to...