87 2d Grand Marquis AOD simptoms

[ravensnbees]

Back in March when I left work my Marquis went :bs: . The trainy would not shift into third and had trouble shifting into second (hard). I drove it to one of the only two trainy shops in my area. It does go into reverse however.

The guy said the cables came undone and that he recconnected them but it did not get better. He then said he would check the valves in the trainy and replace them if they were stuck (he may have actually said cables not valves).

The end result was he said he replaced the stuff inside the trainy and that the current trainy was not savable and putting a used or new one in, or rebuilding a different used one were my options.

It appears that while I drove this home, the pressure blew something of an exhaust nature because the car got laod and smelly of exhaust. I had just had the manifold fixed two weeks prior to the trainy going kaka.

I posted yesturday asking for information on these cables. Does any one have a picture? I would like to check for myself if the cables to the throttle are connected correctly but I can't find them. I looked in my manual (chilton) and there is no picture in there. I am wondering if I got screwed and the cables are un hooked now.

I am also curious about if the guy who fixed the manifold screwed something up and the symptoms are connected somehow. The manifold bolts into the block were stripped and he fixed that some how (different guy than the trainy guy).

Any help would be appreaciated.

Thanks,
ravensnbees

[mrltd]

The TV cable (trans cable) is on the drivers side of the intake underneath the neck that connects to the air filter.

[ravensnbees]

Thanks mrltd,

I'll have a look see this weekend! Thta would make sense then if it is near the manifold. I think I'll go hold a sign out side of the guy who worked on my manifold, :die: . Awe, I guess it's too soon to jump to conclusions, besides, the :cops: will take me away if I do that. Wish me luck! I could be nice and rebuild his garage for him :animalmother: or maybee I'll just cry because someone ruined my baby but :boxing: seems like a better idea, uh um, oh yeah, the guy in blue. I know, I know, I'll take a day off and go use his all day long so he can't use it. Maybe I can jog his memory, :cops: oh yeah, .

Alright, I feel a little better already, thanks for letting me vent.

Ravensnbees

[Nathan in MI]

Holy crap that's a lot of smilies!!!

lol

[FastGallopingPonies]

story in smilies FTW!

[jasonh]

Go here http://www.tccoa.com/articles/tranny/index.html# Click on the 13th one down Adjusting the AOD TV cable. That shows you how to adjust the TV cable properly.

[87mefull]

Does OD work, AOD have 3 speeds and OD, which it should shift into around 40mph? If the disconnected tv cable didn't mess up the transmission, then the tv pressure is too low. My car refused to shift into 3rd gear or would slip badly in 3rd because the tv pressure was set too low on my car. Try setting the tv cable to the max setting, it will also keep the tranny from shifting into OD until 40-50mph. Shifts great now though and I haven't had any problems since. If the shifts are too harsh, set it as close as you can to the max setting.

If that doesn't work, then the tv cable was disconnected for too long and the tranny is probably dead. An AOD with a disconnected TV cable defaults to 0 pressure, which causes the bands and clutches to burn up. OD fails first, then the other gears go.

[Nathan in MI]

OD, which it should shift into around 40mph?

Usually closer to 45 mph, and Scott says OD below 55 mph is unwise. *shrug*

[Archangel]

Try setting the tv cable to the max setting, it will also keep the tranny from shifting into OD until 40-50mph. Shifts great now though and I haven't had any problems since.

Uhm, no, setting the TV at max pressure will result in the car not being able go into OD under 55mph, and even at 55 you'd have to completely back off the gas to get it to upshift. Also the tranny will be very touchy, assuming you're cruising at 55-60mph and you want to accelerate you have to be VERY easy on the pedal, otherwise the tranny will drop in 3rd right away. The setting I'm running is about 1mm before max TV pressure, this way the no-throttle upshift point is 45mph, the regular light throttle goes up to about 60mph, and I can do light acceleration without downshifting right away.

If the shifts are too harsh, set it as close as you can to the max setting.

Setting the pressure that high will make shifts even harsher, when my Townie goes in OD the band applies so hard it shakes the whole car.

[gadget73]

Its possible that the cable was damaged and is holding the TV pressure at full. If the intake was removed, and somehow the cable got pinched, or internally failed it might be already at full at all times, which would definitely make it wind first waaaaay out, shift into second very hard, and probably not want to shift beyond that. Internal failure of the TV valve could probably do the same thing, if the part inside that actual varied the pressure got stuck wide open.

[Tiggie]

The shifting points depends on the individual transmission, too.

The original tranny in my '82 was a slug, it liked to shift into OD at 45mph regardless of throttle position. My '87 tranny held the shifts to about 2500rpm with light throttle, with OD coming in at about 55mph, no sooner. Could be the TV adjustement.... no I swapped the tranny's between the two cars last winter. Now the '82 displays the shifting techiques of the old '87, and the '87 displays that of the old lazy '82. I never touched the TV adjustments.

Shift points for the good tranny currently in the '82 are as follows with 3.08's:

20mph - 1st to 2nd
35mph - 2nd to 3rd
55mph - 3rd to 4th, with very light throttle.

A second gear downshift is available immediatly at seemingly any speed in third or fourth. I do beleive this tranny has some sort of shift kit installed.

[gadget73]

yeah, a shift kit will firm up the shifts and make it hold gears a bit longer. Its a good thing from a durability standpoint to have responsive shifting vs the sluggish grandma shifting. Its that crappy shift calibration that fries AODs and gives them such a bad reputation.

[Blaze86Vic]

The ideal factory shifts are 2nd around 12-14mph, 3rd around 25-30mph, and 4th around 40-45mph under lite to moderate acceleration.

Sounds like the tranny has issues beyond TV. call the tranny guy up and ask what is so bad that makes this tranny not re-buildable. Take note of his answer and repeat it to us. There are few things that make a tranny not salvagable.

I seriously doubt that the exhaust guy had anything to do with your tranny. If you drove away from the exhaust shop like normal than our car was fine then, if he had nocked the cable off you would have known it ASAP.

[ravensnbees]

The ideal factory shifts are 2nd around 12-14mph, 3rd around 25-30mph, and 4th around 40-45mph under lite to moderate acceleration.

Sounds like the tranny has issues beyond TV. call the tranny guy up and ask what is so bad that makes this tranny not re-buildable. Take note of his answer and repeat it to us. There are few things that make a tranny not salvagable.

I seriously doubt that the exhaust guy had anything to do with your tranny. If you drove away from the exhaust shop like normal than our car was fine then, if he had nocked the cable off you would have known it ASAP.

Yes you are probably right, unless there is a way for a slow leak of pressure to have occured. I will call and hope the trany guy remembers. I looked for the cables and they are there. Thanks for all your advice, now I am off to that web site about adjusting cables.

Thanks, Ravensnbees

[ravensnbees]

Go here http://www.tccoa.com/articles/tranny/index.html# Click on the 13th one down Adjusting the AOD TV cable. That shows you how to adjust the TV cable properly.

Thanks, I went, now I have to do some more research to get where is what and who's on first type info. I printed out a copy and will bring it to a friend if I can think of one that will help (not try to run/ruin the show for me).

Thanks, Ravensnbees