M925 air governor location

[HMMWV Nut]

Trying to locate the air governor on my M925 for a couple of days now and I am clueless . The truck is building air pressure up to 100 psi and then pops off, just started doing this about a week ago so I figured it was the governor giving me trouble. Have had a problem recently with a lot of moisture in the air system so I bought a new air dryer. Don't know if the moisture in the air system is causing my air pressure problems or not. Any help on this issue would be greatly appreciated. Thanks

 

[Coffey1]

I believe they are on the fire wall not sure as I have had no reason to look for mine.
Also you can download the Tm's from the 5 ton forum.
If you can't find any thing let me know and I will try to find it.

 

[Tinydragon2001]

It's up on the fire wall next to the air horn. One air line is connected to the horn.

 

[Those Military Guys]

is it blowning out the bottom of the air dryer?

 

[mattwspeed]

the governor can be bought at a local NAPA and is on the fire wall next to the horn. However if the truck is building to much air pressure it may be a check valve at the rear air tank. We had this problem with a truck and replaced the Governor but didn't fix the issue. We traced every line and found a check valve at the rear air tank that had a metal screen inside. The screen was badly rust and clogged not letting return air to the gov. We removed the screen and everything worked perfectly.. just my experience, not sure if it helps.