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Skip the first reply! It can take some time to fill up all 6 tires at once, depending on the CTIS starting pressure and at what rpm and duration the engine has run at. You can get some idea by watching the stock gauges to see how fast your trucks air pressure is recovering while in fill up...

It can take some time to fill up all 6 tires at once, depending on starting pressure and at what rpm and the duration the engine has run. It also depends CTIS system will open up the truck's air supply to the tires after it hits around 120 then it will continue filling unless or until the...