On Fri, 14 Mar 2008 17:39:35 -0700 (PDT), Wuk
<WukichRA@[EMAIL PROTECTED]
> wrote:
>Hello Everyone -
>
>I have a 1985 Ford LTD with (I am almost positive) an AOD
>Transmission. I looked at the Haynes Ford Transmission Manual and made
>this determination visually and by the sticker.
>
>Anyways, This vehicle has 117,000 miles on it and my transmission will
>not go into overdrive. I have Reverse, and my low gear without a
>problem. On "D" I make it up to 35 MPH but the engine is reving
>extremely high. I've looked at the books, webpages, and I cannot make
>heads or tails out of it.
>
>If you need additional information, I will try to help but anything at
>this point would be appreciated.
>
>Also, I am in the military, so I have access to a full auto shop that
>I can do anything I want with the vehicle, how long does a rebuild
>generally take? (I am comfortable doing to work, but I am lousy doing
>diagnostics)
>
>Thank You
>Robert
The most common problem with those symptoms is a bad
overdrive band. This require teardown of the trans to
repair. The biggest things you need as far as tools is a
universal clutch pack compressor common to most rear drive
domestic cars, a good assortment of snapring pliers and the
seal protector set for installing the clutch pistons. The
clutch pack compressor will probably set you back around
$100 if the shop does not have it. The seal protector kit
around $40 for the plastic ones. You can go for broke with
the machined metal if you intend to do this frequently.
Before you pull it, be sure to check the throttle cable
bu****ng at the carb. The originals were plastic. The
replacements are brass. Should cost under $5 even from
Ford. If this bu****ng is bad, it can give the symptoms you
describe. If it has been this way long, replacing the
bu****ng may not be the cure. The throttle cable controls
the trans line pressure and is sensitive to adjustments -
big time. If the bu****ng has been loose long, the pressure
has been low allowing the trans to slip. The clutches are
probably toast if this is the case. BTW, you will need
either a trans jack which can usually be rented or a couple
of buddies to get it out and back in. When you reinstall
the trans, make damn sure the converter is fully seated in
the trans. You should be able to rock the converter back
and forth with your fingers after the trans is bolted to the
engine and before the converter nuts or bolts are tightened.
If you can't pull it back and reseat the converter. If the
converter is not seated, it will destroy the engine thrust
bearings and the trans pump in short order.
Lugnut
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