Hi Kyle,
Sounds like you're having some problems. I quickly went through the other
25 pages of the FSM that I didn't scan for you, and from what I see... there
is only one mention of a vacuum switch in a chart mentioning the amount of
torque. I can't see a vacuum switch on any of the diagrams or mentioned
anywhere else. Even in the index... it's only listed once under heating.
I don't know how involved your job is going to be, but I also see mention
(more than once) of special tools. I hope you're not going to get into a
spot where you are going to need tools you don't have. I can scan the other
25 pages for you, but it will take me some time. I've had a pretty busy and
hectic day and just got home.
Let me know what you need and as soon as Jason wakes up, I'll have him read
through your e-mail and see what we can do to help. Oh yes... I saw "vent
hoses" in the diagrams, but could not find any vacuum hoses.
Good luck and talk to you very soon,
Norah
current: '98 Dakota Sport black 4x4 CC V8/5.2L/Auto
current: '95 Dakota Sport white 4x4 Reg Cab V6/3.9L/5spd
RIP: '95 Dakota Sport black 4x2 CC V6/3.9L/Auto
previous: '93 Dakota blue 4x2 CC V6/3.9L/Auto
> -----Original Message-----
> From: owner-dakota-truck@buffnet.net
> [mailto:owner-dakota-truck@buffnet.net]On Behalf Of Kyle Kozubal
> Sent: Saturday, July 08, 2000 4:58 PM
> To: dakota-truck@buffnet.net
> Subject: DML: Transfer Case Question; Vacuum??
>
>
> Norah, Bill, Others..........can anyone positively identify if the NP231
> transfer cases have a vacuum switch or is the 4WD system
> controlled/activated at all through vacuum? I do not think so,
> but needed a
> confirmation on this. My Hayne's manual identifies a vacuum switch on the
> exploded tcase breakdown picture, but the picture pertains to NP231 and
> NP241 tcases(I guess they are similar?). I found some online sources which
> pinpoint the tcase vacuum switch as a possible place to have 4WD
> engagement
> problems, but it really only talked about Rams having this; because it
> becomes dirty/clogged and this will affect the vacuum. I did look on my
> tcase and could not find anything which would resemble a vacuum
> switch, but
> who knows.
> ***Would a vacuum switch have vacuum hoses running out of it or
> could/would
> it be a switch which utilizes an electrical connector? I found a
> 'something'
> where the Hayne's manual says the vacuum switch should be, but it has no
> hoses connected to it, just a 2 wire waterproof electrical connector which
> runs up towards the firewall.
> ***Also, does anyone know if I can remove the detent nut(7/8"
> socket) along
> with the detent spring and pin, check the spring/pin for
> corrosion and will
> I be able to put it back in??? Since the detent spring/pin is
> located on the
> bottom most area of the tcase, I thought it could possibly become filled
> with crud and won't allow the lever to fully 'lock' or engage
> into 4HI/4LO;
> this is the main responsibility of the detent plug/spring/pin, from my
> understanding.
> Thanks for any and all info you can send my way.!!!
> Kyle
> 93 Dakota 4x4 V6
>
>
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