91 stang shift problem NEED HELP!!!!

akkrdtnr · Jan 5, 2008

Well to start off this is my girlfriends car it is a 91 mustang 5.0 automatic...It was originally a 4cyl. and someone swapped in a 5.0 and an auto trans.She doesnt know what the hell they came out of ad we really have no info on the car,as far as i can tell it is a AOD trans and the motor is carburated.Heres the problem someone micky moused the detent cable and it is held on by wire ties an appears to be the wrong one the car runs mint but will not shift out of first i checked the fluid and it is level and red(no smell) and i'm not sure if or when the filter was changed.I dont know too much about mustangs and am wondering if this is a common problem I've seen alot on the net about them not shifting out of 1st.ANy info you can give to point me in the right direction is appreciated.THANKS !!!!

NKau · Jan 5, 2008

Don't like the sound of that........if the TV cable is not adjusted properly, you can wreck an AOD pretty quickly.

tbovee · Jan 5, 2008

How long has she had it ? Did it drive normally at one time? NKau is right about the TV cable. If it's not adjusted correctly the trans will not live very long.

akkrdtnr · Jan 5, 2008

she has had it for about 3 months and it never ran right but it was a good deal so she bought it..she says before she had first and second gear but never came out of second now its only first.And heres the dumb noob question what is a TV cable.heard of a detent or kickdown cable but never a TV.I'm new to the mustangs

ttop88 · Jan 6, 2008

Put the car in 1st and see if it shifts. It could have a reverse valve body.

Fox8950 · Jan 6, 2008

TV cable is what controls the AOD. Basically it runs the throttle valve inside the valve body which ultimately determines line pressure that corresponds to the amount of throttle being given which is why it is very important that the movement between the throttle cable and the TV cable needs to be linear. The AOD doesn't use a kickdown cable or vacuum modulator and has no computer controller all input is based on this single cable and engine rpm.

**From the sounds of it you just need the correct linkage setup for your carb to set the TV cable up right but its hard to tell how much damage is already done from running like that.

tbovee · Jan 7, 2008

Lokar makes the only kit that i know of to correctly connect a AOD to a carb.( KD-2AODHT) there may be others. I believe no matter how you set it up the TV and accel cables need to move the same all the time.
Maybe this link can help explain? http://www.shockley.net/Holley-AOD.asp

akkrdtnr · Jan 7, 2008

Thank you for all the info...you guys have been a big help explaining all this to me...and thanks for that link tbovee it helped alot too...I'm gonna play around with it tomorrow and in the next few days I'll let you guys know how I make out...Thanks again!!!

akkrdtnr · Jan 8, 2008

well i replaced the cable and had one of the techs at work adjust it, I also replaced the throttle bracket thinking the micky mouse job they did installing the cables my be the problem and i even replaced the trans filter cause the pan was dented thinking it may not be getting fluid,BUT it was a failed attempt the trans is shot i got nothing again...but i have a buddy with a AOD out of a lincoln mark series so ima replace the trans and hope for the best...Wish me luck!!

tbovee · Jan 8, 2008

Glad we could help. Good luck with the tranny swap. Hope it all works out.

Fox8950 · Jan 8, 2008

Good luck to ya, just be careful to note the difference in the lincoln and mustang aod if there is any. For some reason I'm thinking the TV linkage is upside down but that could be crown vics someone that knows the answer correct me

sweat90lx · Jan 10, 2008

I feel your pain. I went through same problem with 4 cyl conversion. I had my AOD built at a local shop and the guy told me every clutch in the trans was gone. The shifter is different, you will need a V8 shifter.

new46stang · Jan 10, 2008

The other thing to check is the length of the tail housing / output shaft. I am pretty sure it is longer in a lincoln.

Matt

91 stang shift problem NEED HELP!!!!

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