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International Automotive Technicians Network
Re: 2010 INTERNATIONAL BUS BRAKE ASSIST
Posted to HD/Fleet Forum on 7/24/2015

I agree with both of these guys. Check the cap to be sure that it's venting. Pump down the brakes, let the pressure build back up and check to see if the cap is sucked on the reservoir.

Then call that tech line. They were very helpful for me and explained al... Login to read more.