I have a 1997 kenworth t800 and cannot figure out why my relay valve is leaking air ?I replaced this valve (new) still leaking.I was told i have a blown brake maxi.There was one leaking i replaced that still leaking air out of the bottom of relay valve.It only leaks air when tractor brakes are released of coarse.If anyone has any suggestions i could use the help Thanks!
relay valve still leaking air??
Discussion in 'Kenworth Forum' started by boilermaker1978, Dec 31, 2013.
Page 1 of 2
-
-
Trucking Jobs in 30 seconds
Every month 400 people find a job with the help of TruckersReport.
-
many valves are bad out of box, unhook EM MAXI.air lines till leak stops?
-
i just put valve on and replaced the leaking maxi thats far as i got.well i should say the valve was a reman its all they had on hand.
-
i have put on 4 bad out of box.{china remade}
boilermaker1978 Thanks this. -
have you been in a warmer climate???
i've been in 2 trucks i'm thinking might need new dryer filters. they don't leak when in the south. but come back up north. and my tanks will be empty in 10 minutes.boilermaker1978 Thanks this. -
You still may have another bad maxi. The air is leaking through the center of the maxi from the spring brake side, and going back up the service line and out the exhaust of the relay valve. Either take off the service lines from each maxi one by one to find your culprit, or pinch off the air line to the spring brake side one by one. Now, I did have this truck years ago with this very same problem. The truck sat for about a year. Once the brakes were released for the first time after sitting, ALL 4 maxi's leaked!!! I removed the service line and from all of them to confirm. Just dry rot/rust of the center seal inside.
04 LowMax, baha and boilermaker1978 Thank this. -
Thanks for the info ill try this.Ive been in awful rainy and snowy weather temps in the teens.If that dont help with the maxis ill take the valve back and try a new one.
-
I have the same problem on my 1998 freightliner.Where are the maxi brakes located on it so I can check them first before I return the new relay valve I just installed?
-
hey so my quick release air brake valve leaks air.. I removed all the brake pot service lines and the valve was still leaking air. I replaced the valve and it still leaks air. I ordered and installed another new valve and its still leaking... anymore ideas????
-
its a 2009 Peterbilt 367
Trucking Jobs in 30 seconds
Every month 400 people find a job with the help of TruckersReport.
Page 1 of 2