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post #1 of (permalink) Old 04-09-2002, 11:56 AM
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Dana 30 axle disconnect

My Dana 30 Front axle on my 89 Wrangler comes disconnected when I blip the throttle on four wheel drive, High or Low. I have a feeling it has something to do with the vacuum canister on the passenger side of the engine bay, but I'm not sure. Seems that way because when you blip the throttle quickly, the vacuum goes down and would allow the axle to disconnect if it wasn't working properly. Anyone have any input?
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post #2 of (permalink) Old 04-09-2002, 12:59 PM
 
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Re: Dana 30 axle disconnect

Could be that your vacuum canister is bad. It should hold vacuum to prevent that from happening. Check that and all the lines going to and from it for cracks or leaks. A good upgrade is to go with one of the number of cable accuated setups. Yes, it's pricier but I think it well worth it for the added reliability.
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post #3 of (permalink) Old 04-09-2002, 01:12 PM
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Re: Dana 30 axle disconnect

First, are you sure that your axle is even engaging? Jack up the passenger front wheel to see. It shouldn't be disengaging unless there is either positive pressure through the vacuum line or vacuum is being applied to the opposite side of the vacuum diaphram. Even if the vacuum is low or drops for a second, it should still be engaged.
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post #4 of (permalink) Old 04-09-2002, 02:50 PM
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Re: Dana 30 axle disconnect

I would seriously get the cable-actuated device...its about $100, and foolproof. AND it gives you the option of 2wd LOW! And you KNOW its engaged or disengaged, no BS, reliable as can be.
post #5 of (permalink) Old 04-09-2002, 05:02 PM
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Re: Dana 30 axle disconnect

I am sure it connects, and it will stay engaged as long as I ease into the throttle very slowly. As soon as I mash the pedal, though, it disconnects. I'll look into the cable device. Any other info will be appreciated
post #6 of (permalink) Old 04-09-2002, 11:18 PM
 
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Re: Dana 30 axle disconnect

it might be the D30s self preservation instincts. sounds like a good deal to me. [img]images/icons/smile.gif[/img]
just kidding, I'm the proud owner of a D30 also.
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post #7 of (permalink) Old 04-09-2002, 11:37 PM
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Re: Dana 30 axle disconnect

where can I get one of these cable actuated device? I was thinking about one of those since i seem to have problems with 4wd engaging and disengaging
post #8 of (permalink) Old 04-10-2002, 12:54 AM
 
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Re: Dana 30 axle disconnect

$209 at the 4 wheel parts whorehouse. I want one, but I'm not willing to invest any $$$ on the D30.

http://www.4wheelparts.com/product2....OK&cat=DRI
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post #9 of (permalink) Old 04-10-2002, 01:05 AM
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Re: Dana 30 axle disconnect

I have a D30 sitting in my garage. I'll ship ya the vacuum crap if ya wanna pay shipping. It worked when I had it under my Jeep.
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post #10 of (permalink) Old 04-10-2002, 12:02 PM
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Re: Dana 30 axle disconnect

That's awful nice of you, but I don't think the vacuum motor is the problem. I'll get back to you if something else comes up, though.
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