Air Valve

[DJR1SR]

Have a constant air leak on this valve in the close up picture at the, I assume the discharge line. What valve is this? We are on the road so can I put a screw in the discharge line to stop the leak until I get home to repair it? Thanks for your help. 1999 Monaco Diplomat 38A. 

Edited May 12, 2021 by DJR1SR

[John Haggard]

Looks like the leveling valve.

Should be 1 in front

 

1 on each side by rear drive axle.

 

They are common and sell for 70 to 100 $s

 

NAPA or a truck store, truck shop. 

[TigerMar]

It looks to me as the ride height valve.  Had one go out in my 2008 Dynasty while on the road.  Right side went down. 

Are you camped?  Did the leak begin when camping or on the road?
 

 

[DJR1SR]

Air loss, enough to set off the alarm, after sitting for 5 - 10 minutes while fueling up. Crawled under the coach during campsight set up and found this valve leaking. Prolly plug it up until I get to a place to replace it.

[John Haggard]

3 hours ago, DJR1SR said:

Air loss, enough to set off the alarm, after sitting for 5 - 10 minutes while fueling up. Crawled under the coach during campsight set up and found this valve leaking. Prolly plug it up until I get to a place to replace it.

Personally 

I'd get it in a shop or have a mobile tech change it out..

T h e parts are common and a big truck mobile tech can change quite quickly.

Good luck

 

[Harvey Babb]

Plugging it may cause your air bags to overinflate, possibly causing damage.

Leaks are common in my experience, and while annoying, are small and harmless.

If the coach can maintain air pressure at idle, you should be safe to travel with it.

[Bill C]

I agree it is the air ride valve, but i think the "leaking" is really exhausting of the air from a bad or stuck exhaust valve or solenoid (solenoid goes over the valve). If you can identify the correct valve, you might try tapping it to see if it becomes unstuck until you can replace it. I think if you follow the plastic tube that goes to it (closest to the venting tube) you can follow it back to the bad valve. I just replaced one on my rig but was lucky it was the solenoid and was able to leave the valve in place (I am traveling and did not want to replace the valve and have to vent the air). Once you properly identify the correct valve/solenoid you might try unplugging the power to it, in case it is stuck on/open for some reason because of another electrical issue. This is a less likely issue, if everything else works fine, but an easy thing to try.

[Hypoxia]

Hadley 450 Ride Height Valve or one similar.  Sometimes you can get it to stop leaking temporarily by disconnecting the arm & moving it up & down a number of times.  I've had good service with Hadley, not so much with off brand.