My 91 T-bird LX 5.0 AOD is giving me some trouble. The other day I was
on the highway doing about 70 and suddenly noticed that I felt like
the car suddenly dropped into neutral. I didn't want to take a chance
cooking the tranny so I pulled over right away and had it towed back
home. Fluid level was fine. I learned of the notorious faulty TV cable
grommet later that night and checked for that right away. Sure enough,
I looked under the hood and found the cable hanging off with no
grommet in sight. I hooked it back up and tested it out. Now all
upshifts seem ok including od but when I decelerate from od the tranny
neutrals out and doesn't engage again until I drop to about 20mph. If
I'm in D (not OD) there's no problem shifting at all. My brother in
law who is a mechanic tells me that the OD gear is burned out but I
can't figure out why it will shift into OD if thats the case. Am I in
for a rebuild?
Any ideas or suggestions are greatly appreciated.
Thanks very much
On Wed, 11 Jul 2007 05:08:57 -0000, firstname.lastname@example.org wrote:
What you have is a classic failure of the OD band because
the throttle cable for the trans disconnected. That cable
controls the line pressure in that trans to increase
pressure as the throttle is advanced. With the cable
disconnected, the line pressure has been low allowing the
trans to slip. Unfortunately, the only cure is a trans
rebuild since the front internals have to come out to
replace the band. Once you get there, you are 85% of a
complete overhaul. Make damn sure that cable bushing gets
replaced with the new updated one and is properly adjusted.
That trans is very sensitive to that adjustment and can burn
out in only a few miles if disconnected.
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