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Discussion Starter #1
I can't figure this ARB out. I have power everywhere, I checked w/my meter. I jacked up the truck w/the ARB engaged(so I thought) and I was able to spin the tires independant of the other. Tonight we when wheelin' and the ARB kicked in once on a 3'ledge and then never worked again???
Could my lockouts not be engaged all the way? They spin freely from free to lock, but does that necessarily mean that they released inside the hub and locked the axles??

I'm at a loss and need this fixed ASAP......

Thanx Tom
 

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Well, it should be fairly easy to tell if the lockouts or ARB are engaged.

With the front end (I assume front end since you mention lockouts) jacked up, truck in gear, t-case in 4wd, ARB not engaged, when you spin one tire, the other side should turn the opposite direction. If it doesn't, then there is a hub problem (too much grease?) or broken axle, etc.
With the same conditions but the ARB engaged, you should not be able to turn either side since both should be locked directly to the drive shaft. Also, w/ the t-case in 2wd and you spin a tire w/ the ARB on, both tires should turn in unision (locked together).

Does that help?
 

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Discussion Starter #3
Originally posted by ErikBeeb:
<STRONG>Well, it should be fairly easy to tell if the lockouts or ARB are engaged.

With the front end (I assume front end since you mention lockouts) jacked up, truck in gear, t-case in 4wd, ARB not engaged, when you spin one tire, the other side should turn the opposite direction. If it doesn't, then there is a hub problem (too much grease?) or broken axle, etc.
With the same conditions but the ARB engaged, you should not be able to turn either side since both should be locked directly to the drive shaft. Also, w/ the t-case in 2wd and you spin a tire w/ the ARB on, both tires should turn in unision (locked together).

Does that help?</STRONG>
Eric, I've done that already, it showed that the ARB wasn't engaged. With it supposidly locked the wheels turned in opp. dir. not like a posi. I went wheelin' yesterday and in 1 section it locked for a second then went back to being opened. I'm lost!!
I had one suggestion on trying the lockouts first and see if they are engaging all the way.

HELP ANYBODY!!!!
tom
 

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Check the air supply. My buddy had his air line melt and couldnt figure out what it was. Check air line to housing.
 

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Discussion Starter #5
Originally posted by ToyToddy:
<STRONG>Check the air supply. My buddy had his air line melt and couldnt figure out what it was. Check air line to housing.</STRONG>
Have the ARB compressor that yours fine.I have air to the diff. I hope I don't have to go inside this thing. I just got it back together..

<IMG SRC="smilies/mad.gif" border="0"> <IMG SRC="smilies/mad.gif" border="0"> <IMG SRC="smilies/confused.gif" border="0">
 

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Originally posted by justmyluck:
<STRONG>Have the ARB compressor that yours fine.I have air to the diff. I hope I don't have to go inside this thing. I just got it back together..

<IMG SRC="smilies/mad.gif" border="0"> <IMG SRC="smilies/mad.gif" border="0"> <IMG SRC="smilies/confused.gif" border="0"></STRONG>
You have turned on the switch and activated the solenoid, took the line off the housing and air comes out of it? If that answer is yes, hook the line back up and take the diff fill plug off and turn the ARB on and listen to hear if you can hear air escaping in the diff. If you can hear air more then likely the two O-ring seals on the air manifold were not installed right or got a cut in them and are leaking. Did you bench test it to see if it was engaging before you put it in the axle housing? You should always bench test it before sticking it in. Is this ARB in the front or back? Do you have one or two ARB's? If you only have one do you have it wired right? There is a built in so called safety feature in the ARB wiring harness that requires you to have a switch on the rear plug in order to energize the front plug. A lot of people think that since it is in the front they have to use the plug that is marked front. It will not work if you only have one ARB, you have to use the plug marked rear or you will not be getting any power to the switch or solenoid.
 

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Discussion Starter #7
Originally posted by OPP'S:
<STRONG>
Originally posted by justmyluck:
[qb]Have the ARB compressor that yours fine.I have air to the diff. I hope I don't have to go inside this thing. I just got it back together..

<IMG SRC="smilies/mad.gif" border="0"> <IMG SRC="smilies/mad.gif" border="0"> <IMG SRC="smilies/confused.gif" border="0"></STRONG>
You have turned on the switch and activated the solenoid, took the line off the housing and air comes out of it? If that answer is yes, hook the line back up and take the diff fill plug off and turn the ARB on and listen to hear if you can hear air escaping in the diff. If you can hear air more then likely the two O-ring seals on the air manifold were not installed right or got a cut in them and are leaking. Did you bench test it to see if it was engaging before you put it in the axle housing? You should always bench test it before sticking it in. Is this ARB in the front or back? Do you have one or two ARB's? If you only have one do you have it wired right? There is a built in so called safety feature in the ARB wiring harness that requires you to have a switch on the rear plug in order to energize the front plug. A lot of people think that since it is in the front they have to use the plug that is marked front. It will not work if you only have one ARB, you have to use the plug marked rear or you will not be getting any power to the switch or solenoid.[/QB]
OK OPPS heres what I know now.
1-theres power to the compressor,it works fine.
2-have 1 arb in front,detroit in rear
3-have the red wire plugged in the push button switch at the dash and the black/yellow to the solenoid at the compressor.
4-I activated it just now and pulled the air line off at the diff. I HAD NOTHING. I used my compressor and blew air thru, so nothing is blocked there.
5-pulled airline off at the solenoid, I have nothing there.
6-I have the soleniod in the most rear port on the ARB compressor and not in the front port at the end of the compressor.??
I wonder if thats my problem OPPS.

Should i have used the other port????

I have it wired correctly from what I found. I have power to every switch,checked the fuses and relay using a meter.

I need it for this weekend. Last night i did everything in 3wd. i was impressed where i made it,can't wait to get the front locked up

Any suggestions i greatly appreciate!!
thanx tom
 

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Discussion Starter #8
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Originally posted by justmyluck:
<STRONG>OK OPPS heres what I know now.
1-theres power to the compressor,it works fine.
2-have 1 arb in front,detroit in rear
3-have the red wire plugged in the push button switch at the dash and the black/yellow to the solenoid at the compressor.
4-I activated it just now and pulled the air line off at the diff. I HAD NOTHING. I used my compressor and blew air thru, so nothing is blocked there.
5-pulled airline off at the solenoid, I have nothing there.
6-I have the soleniod in the most rear port on the ARB compressor and not in the front port at the end of the compressor.??
I wonder if thats my problem OPPS.

Should i have used the other port????

I have it wired correctly from what I found. I have power to every switch,checked the fuses and relay using a meter.

I need it for this weekend. Last night i did everything in 3wd. i was impressed where i made it,can't wait to get the front locked up

Any suggestions i greatly appreciate!!
thanx tom</STRONG>
The port on the compressor does not matter.

You have the correct wires plugged into the solenoid.

Try switching the plugs on the switch and see if that makes any difference. They have the same wires in them but one gets it's power off the other (ARB safety feature) My wiring loom from arb were marked Conn 1 & Conn 2. You need to use Conn 1 at the switch and the yellow/black wire for the solenoid. If it still does not work it sounds like the solenoid may be bad. Good Luck.
 

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Discussion Starter #10
Thanx OPPs!!!
Well i have the freakin' thing wired the same as you. Connector#1 plugged into the switch at the dash and the yellow/black at the solenoid.Thanx for straighting out the ports on the compressor for me. This has me baffled. I posted over on gen4x4. One guy suggested I hook the solenoid direct to the battery to see if it operates. I'll try it in the morning.

If it is the solenoid,which it likely is. Any idea where I can get one?
or
What I might be able to use as a replacement for the original?

thanx for lettin' me pic ur brain.
tom
 

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I would test the solenoid on the battery to see if it activates. As far as buying them I have only gotten them from ARB and they cost about $50.00. I have tried searching for them on the web with no luck, I also took one to the NAPA store, and they could not locate them either. There has to be another source for them, I have just not found it. I have heard that Randi from 4x4 wire does not use them he uses some type of air switch from a big rig. I have not seen them though.
 
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