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The first truck I bought I had to have a few new lines made, take apart and clean the wheel valves and put new o rings in the wheel lines. There are little filters in the wheel valve inputs I just blew them out with air. I use xc around town and hwy on the highway so I go up and down all the...

Everyone knocks the ctis system I personally love it. It just takes a little experience with it to get the hang of maintaining it. I think the military units were too quick to just bypass it instead of taking the time to learn to fix it.

Pm smittyjr355 hes parting a few out right now. He should have that part I dont think its in high demand. I have a 120psi air switch but its a little different. Will

Jump the damaged switch see if the system fills air. If it allows you to lower pressure settings then it does a good pressure check so no major leaks on the fill side which is a good thing.

It takes some time to reinflate even when driving. You should make sure your governor is set to around 135psi. Post a pic of the switch I might know where to get one.

Before you do anything, go to harbor freight and get a big generic o ring kit. Its like 6 bucks and it will make your life much easier. The wheel stems extend out the front and back of the wheel. The back ends are supposed to have schrader valves. I have seen them not screwed in enough in the...

You can check the tire pressure in each tire with a manual guage. There is a schrader valve on each wheel valve. If you see no pressure at the wheel valve then there might be schrader valves installed in the stems. There is a pressure sensor that tells the ctis system to come online at around...

When you first start it, does just the hwy light flash? Until the tanks reach 120 psi the system is just waiting. Once the system sees 120psi then it will do a pressure check. If the pressure check fails then you will get fault lights. When the system sends air to do the pressure test, if there...

5 lights flashing means you probably have a fill side leak to atmosphere. The hwy light will flash when you start up until they system has 120psi or so and the ctis sends air to the tires for a quick pressure check.