‘15 prostar won’t build air

If you cannot build Primary and Secondary air at all, check your compressor hose to truck air brake systems. It should be hot which means compressor is working. If it's cold then put a pencil against the body of the compressor to see if it's working. If you do not feel anything or hear anything then suspect compressor busted. (*Just became a tow to a shop big enough to fix it.)

IF you do build primary and secondary air, wait until they finish at 120 or better on both. Take your buttons off (Yellow and red...) and apply to hold service brake normally. Watch for a leak in either or both pri or sec after a certain short time. If you fail this and have a leak then that truck cannot be driven until it's fixed by a shop.

IF you build and then spill the air in a relatively short time, you don't drive it until it's fixed by a shop.

If you are at a stop with no shop, find a shop nearest to you that can fix anything in your airbrake system from compressor on back and have your rig towed there.

 

I would say from what you are telling us with the pressure being 15 psi over for several days that the governor has gone away. If you have tools changing it is not that big of a project. Past that you might look for a shop in the area that does road side service. Past that call for a tow $$$ Good luck. In the future if you are a serious trucker I have always carried tools and a few spare parts. It can save you money, time, and the peace of mind that it might get you out of bad spot some where down the road.

 

Just thinking after the previous post that being a "remote mount" if you are in the snow and cold they get no heat and have a tendency of freezing. But it still needs replaced. Had a friend with a 97 Pete that had the same type setup he has replaced the governor numerous times and always in the winter.

 

You would think a Builder of Large 18 wheeler tractors and trailers will include a proper fishing tacklebox fitted with exact OEM replacement screws, valves, parts, doo dads, stems and on and on and on. At least 4 of each. Labeled by partnumber etc.

That way you can pretty much fix anything that breaks on a 18 wheeler anywhere. With the kind of say small valve that goes into the airtank you ripped off trying to cross a speed bump by mistake. Why we don't weld airtanks somewhere else higher up...

Tools and parts are wonderful. But what's more than that is the escape of younger unattached American women at honest to goodness skilled drivers who can fix a big truck and be on their way in a timely manner without asking anyone for help.

 

In the years gone by we have lost the comerroderey that we had when I started this adventure. Gone are the days when ones truck would break down and all the drivers would come to there aid. Tools parts what ever was needed to get you moving again just seemed to appear. You would suddenly have friends you didn't even know.

The driver schools should teach these people the basic mechanical skills needed to repair minor engine,air and electrical problems as they arise. I have seen people who were not even capable nor interested in fixing / replacing a light bulb. Whats up with that picture.

Times have changed good bad or otherwise. Just another day in life. Wish every one a good day and keep the greasy side down.

 

In 2004 I had a charge air cooler clamp blow off, I was only two miles out of a town. So I just limped it in and bought the clamp, and the point of this story, I bought a spare. I carried that spare all the way until 2016.
Three hours away from the nearest city, a buddy blew a clamp just a few minutes in front of me. I was able to save his day.

 

In my post I failed to mention the fact that I was impressed that you mg1224 were in the game. Lets fix it and get out of here seemed to be where you were coming from. Learn from it I always had a new air governor in my spare parts as well as a full complement of air fittings particularly couplings 1/4 to 3/4 also a set of glad hands with lines , a spare electric cord with plugs both ends male and female. There is never too many spares in my book but when your in the boonies loading and unloading most of the time you become you own repair shop. Just a few things in the tool box is all that is necessary for most people.