Classic Mustangs List Archive

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Mail From: benw (Ben Witso)

Hi All,
Sorry for the off-topic post - but I have some questions on the 4X4
mechanicals on my 99 Expedition and would love to find a resource
such as this email list or a forum for the Expedition - anyone know
of any? I'm guessing an F150 would be almost the same so those would
be welcome as well.

Thanks,
Ben

(Or if anyone wants to take a guess at my problem: I have a 99
expedition which has 3 positions for the 4x4 system: Automatic, High
and Low. The 4x4 system itself is working (both High and Low work),
but the Automatic portion seems to have stopped working. From what I
could find so far - automatic runs in rear wheel drive normally. It
has a computer that monitors the front wheel anti-lock sensors
(located at each wheel) and rear wheel anti lock brake sensor (which
is actually in the transfer case in the 99s?) and will trigger a
clutch in the transfer case to switch to 4X4 mode when it sense a
difference in speed between the front and rear wheels. I'd like to
know how to test each of the components to see which is bad - the
haynes manual is pretty vague and covers several years in which the
design of the system seems to have changed. Thanks.)

This read-only message was archived from a public mail list.
Mail From: mkupec (Michael J. Kupec)

Try this list:

> _______________________________________________
> Expedition mailing list
> Expedition at xpog.com
> Use this link to manage your subscription:
> mail.xpog.com/mailman/listinfo/expedition
> List archives:
> archive.xpog.com

Michael J. Kupec
mkupec at blueovalcorral.com
blueovalcorral.com

"If you would not be forgotten as soon as you are dead and rotten, either
write something worth reading or do things worth the writing." - Benjamin
Franklin





> -----Original Message-----
> From: classic-mustangs-bounces at lists.twistedpair.ca
> [mailto:classic-mustangs-bounces at lists.twistedpair.ca] On
> Behalf Of Ben Witso
> Sent: Tuesday, October 16, 2007 1:39 AM
> To: mkupec at comcast.net
> Subject: [CM] Anyone know of an Expedition (or maybe F150)
> list or forum
>
> Hi All,
> Sorry for the off-topic post - but I have some questions on
> the 4X4 mechanicals on my 99 Expedition and would love to
> find a resource such as this email list or a forum for the
> Expedition - anyone know of any? I'm guessing an F150 would
> be almost the same so those would be welcome as well.
>
> Thanks,
> Ben
>
> (Or if anyone wants to take a guess at my problem: I have a 99
> expedition which has 3 positions for the 4x4 system: Automatic, High
> and Low. The 4x4 system itself is working (both High and Low work),
> but the Automatic portion seems to have stopped working. From what I
> could find so far - automatic runs in rear wheel drive normally. It
> has a computer that monitors the front wheel anti-lock sensors
> (located at each wheel) and rear wheel anti lock brake sensor (which
> is actually in the transfer case in the 99s?) and will trigger a
> clutch in the transfer case to switch to 4X4 mode when it sense a
> difference in speed between the front and rear wheels. I'd like to
> know how to test each of the components to see which is bad - the
> haynes manual is pretty vague and covers several years in which the
> design of the system seems to have changed. Thanks.)
> _______________________________________________
> Classic-mustangs mailing list
> Classic-mustangs at lists.twistedpair.ca
> lists.twistedpair.ca/mailman/listinfo.cgi/classic-mustangs
>
> Visit the Classic Mustang Wiki! sauce.donair.org/~cm/
>