You're up there where it's cold. Have you checked to make sure that the heater in the air dryer is actually working? Just a thought.
Bendix AD-IP Air Dryer question..
Discussion in 'Trucks [ Eighteen Wheelers ]' started by Hanadarko, Dec 23, 2012.
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I kinda ignored it for awhile and now working on troubleshooting.
Nothing like waiting until its SUPER COLD out.
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Bendix AD-SP Service Data document.
I've found that the first step to diagnosing a problem is to first gain a thorough understanding of how the system is supposed to function when it's operating correctly.
The above document may help, as may THIS one.Hanadarko Thanks this. -
Since you said the drier will purge, then stop, check a line right quick for leaks that is common to your problem as well as will leak down when truck shuts off. Follow the line from your governor to your unloader on the compressor. Check to verify that neither side is leaking. They tend to melt from the heat at the compressor. I've changed that fitting at the compressor many times due to the line melting inside and leaking. That fitting is less than $10 to change. Takes a 5/8" deep well socket or 9/16" socket if it's the gray colored fitting.
Bypass the drier when you get a chance and that will tell you if you have a drier issue. I am thinking you have the o-ring issue as well.Hanadarko Thanks this. -
I did check the line fittings (my gov is attached to the compressor directly) and none of the fittings are leaking.
I am wondering about some of the hoses though (due to age).
I use dollar store kid bubbles cause they will bubble at any air leak whatsoever- -
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Easy job.Hanadarko Thanks this. -
windsmith Thanks this.
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Replace it...
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Found a Haldex for less than 1/2 that....
Its on the way-
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