Fresh transmission rebuild, still no second gear? Help please!

[84towncar]

accumilator valves yup those should have been replced as well, and old ones do stick from time to time, cant hurt to replcae them,

Everything is clean and brand new..the ONLY thing I didn't touch were the valves in the valve body..

[86VickyLX]

Pull the valve body off. While it's off, pressure check the transmission. By putting compressed air in certain ports of the trans case, you can actually engage different gears. If they all engage, then you have a valve body issue. If not, you have issues with seals or blockage.

[gadget73]

yeah. There is a diagnostic process in the drivetrain manual that tells you what to put air to, what to look/listen for, and what the different test results indicate.

[84towncar]

yeah. There is a diagnostic process in the drivetrain manual that tells you what to put air to, what to look/listen for, and what the different test results indicate.

Well here's a late update. The valve body has been fully rebuilt,I made sure the right amount of fluid is in,the bushing and the linkages are all installed correctly. The rod is in place. There is still no second gear. I made SURE I installed the valve body correctly and it is. It still has no second gear, it has all the same gears it had when I was first getting into this.
Because the cause of this problem to begin with was the rod was able to fall of it's linkage because it didn't have the bushing.

BUT I went to a transmission shop that I trust and that I've been to for parts,and he thinks it may possibly be that the governor has been put back on backwards. I guess it doesn't hurt to take the housing off and check though..even though it's a pain in the ass.

[gadget73]

hm, possible the governer is put on wrong or its just defective. If that doesn't work, the trans will not upshift.


If thats not it, you really really need to get the drivetrain manual and read through the transmission troubleshooting process. I have the book for an 84, but honestly it would take me a week to retype the whole thing here.

[84towncar]

hm, possible the governer is put on wrong or its just defective. If that doesn't work, the trans will not upshift.


If thats not it, you really really need to get the drivetrain manual and read through the transmission troubleshooting process. I have the book for an 84, but honestly it would take me a week to retype the whole thing here.

Well from what I've read about these governors, is that they are really picky on how much they are torqued down. If it's too much it will build up too much pressure, or the opposite if it's too loose. BUT, I think it's right, I'm almost sure it may be on wrong though..I just need to find a big trailer..and someone to tow it to the trans shop for them to do it. I'm honestly tired of opening and putting the trans together, then having to take it all apart again. We'll see if this fixes it when it's all done..

Because other than the no upshifting from first, it shifts in and out of gears perfectly with no delay at all, so that right there tells me the internals are working,and the linkages are right.

[84towncar]

hm, possible the governer is put on wrong or its just defective. If that doesn't work, the trans will not upshift.


If thats not it, you really really need to get the drivetrain manual and read through the transmission troubleshooting process. I have the book for an 84, but honestly it would take me a week to retype the whole thing here.

update; it is at aamco right now as I type this. Couple 100$ job maybe less, so when I get it back I'll send an update on what it's doing, if it's shifting or not. But I'm not getting my hopes up, since the last few times I've just been let down.

[sly]

hopefully your aamco has people that actually know what they're doing. The ones around here are populated by people less mechanically inclined than my sister. and she can't tell the different between a screw and a bolt.

[gadget73]

I've also heard horror stories about big chains like that. I've ridden in a couple of those cars too, and they shifted horribly. Then again, my transmission was rebuilt by a guy who works at an Aamco (or is it Cottman?) and does trans work on the side. I'm entirely pleased with both that he did for me. I honestly don't know if company policy would allow the same quality of rebuild though.

[84towncar]

I've also heard horror stories about big chains like that. I've ridden in a couple of those cars too, and they shifted horribly. Then again, my transmission was rebuilt by a guy who works at an Aamco (or is it Cottman?) and does trans work on the side. I'm entirely pleased with both that he did for me. I honestly don't know if company policy would allow the same quality of rebuild though.

Well I'm happy to inform you all that my thoughts were correct,and that the governor indeed was on backwards and it now shifts. BUT. Now there is a weird wirlling sound, and it's a bit frigidity going into the gears, and it doesn't like to shift down from them unless you put it into first low. He told me it could be that it's somewhat low on fluid,and that it just needs to be driven through the gears to build up pressure. Usually before the issue started, it would be into second gear about 25mph, now it's about 37mph. He told me to adjust the set screw on the linkage,and to also adjust the throttle linkage..I have no idea how to do so.

[sly]

bah. they should have done that. dickwads.

[84towncar]

bah. they should have done that. dickwads.

it's not a biggy, I checked it and it isn't really too low, it could use a good quart and that's it.
I just took it around for a test drive again, it feels like it binds up when you give it some gas, once it gets going it shifts good. I think he is right, it may just need to be driven around. Since the car did sit a good month and a half when It didn't shift after the rebuild.

[gadget73]

A quart is a lot in an AOD. They're kind of bitchy about fluid level.

[84towncar]

A quart is a lot in an AOD. They're kind of bitchy about fluid level.

Here's the sound of what it's doing. I haven't yet had a chance to do a video of it shifting, because there technically isn't insurance, yet. Have any idea what it is?? It sounds like it's coming from the front end of the tranny.

[gadget73]

Is the shim plate between the engine block and the trans in place? Its a big aluminum piece that goes in front of the flexplate. You'd normally need to remove the flexplate to get that out. Sounds like the flexplate is grinding against the starter or something. Missing shim would do that, or a wonky starter thats not pulling back all the way. Could also be a wire wound up in there somehow. The fact that it comes and goes could be the endplay in the crank allowing the flexplate to move around in and out of contact with whatever it is. The motors get sloppy and if the torque converter swelled up in the old trans, it shoves forward hard on the thrust bearing and causes a lot of wear. When that swollen converter is replaced, the crankshaft sort of flops and bops around in there and it does wierd stuff.