Air pressure sensor under dash leaking

[Hooty481]

On my 818 if I shut it off for 20 minutes all of the air bleeds out or at least enough that annoying buzzer comes on to say the pressure is low. I got to feeling around and found the air is leaking from a little hole on the side of the low pressure sensor. Is this suppose to be like this. Is there anything that will fix this other than replacing that piece?

 

[groundog]

i have used a small self tapping screw in the hole---otherwise install a new one--seems to be a common problem

 

[Hooty481]

Is. The hole used for anything specific?

 

[drgreg]

Fix it right, it's part of your air system (brakes) and is a safety device.

 

[Hammer]

Actually, just pull the thing apart and clean it. That seems to fix it most of the time.
Mine was doing it, and when I pulled it apart to clean, it looked really clean.
I cleaned it anyways, and it hasn't leaked in the three years since.

 

[aaron379]

Mine leaks too..... does anybodys truck hold full air pressure for 24 hours?

 

[Hooty481]

when you cleaned it did you lube it with anything WD40 or anyhting like that. also what did you use to clean it? water soap???

 

[Hammer]

Mine was really clean. 'If' I remember right, I only used a clean cloth with a little air tool oil (marvel mystery oil.)

 

[Tow4]

Mine leaks too..... does anybodys truck hold full air pressure for 24 hours?

No....

 

[R Racing]

My M920 will hold air for 3 days lol but not my m813.Althought my m816 holds it for close to a day. but its a tight truck.

 

[aaron379]

Mine will have about 10 - 20 psi after 24 hours