Hi fellas, I just got the $$$ together for the wife's 727 in the Wagoneer when the regal's tranny wouldn't get out of 2nd(?). Going over 30 really got the rps up, so it wasn't used mush except to go around the corner to the store. Well, just realized after the last time out, the tranny seemed to have puked/lost most, if not all it's fluid. I have no knowledge about trannys what so ever and am hopin it may be something simple and not in need of a rebuild.ray: I just wanna get it together to sell at this pint and add a different Buick to the stable.:idea2: Ideas???
Usually a sudden loss of tranny fluid is due to a leaky cooling line. If you didn't fry the clutches you should be able to find and fix the leak add fluid and be good to go. Good Luck Bob H.
I wouldn't be surprised, but are you suggesting the purge has nothing to do w/ it not getting out of 1st gear? I can never have just one problem...uzzled:
If you said anything about not getting out of 1st gear I must have missed it. If there is enough fluid to get up to speed it should shift. I was just trying to suggest one of the reasons for a sudden fluid loss. It can puke out the filler tube but to my knowledge it won't lose as much fluid as a broken cooling line will.. There have been several failure to shift posts on here, you might try doing a search. There are a lot of guys on here smarter than I am when it comes to transmissions.:TU: Bob H.
Do you know exactly what the tranny is? What is it in, what year, what engine, how many miles, is it original? Dos it try and go to another gear but slip, or not try to shift at all? First make sure it has the correct fluid level then work from there. All of this is a factor before you can get solid advice.
Yeah, thatnks Bob. Was trying to get in and out fast. I'm trying to juggle several issues w/ several cars right now and just need a break!ray: I found out the modulator or governor. I don't know what anymore(?) has not popped out as a friend who rebuilds them thought/hoped. Haven't been able to get under to get a better look w/ the recent weather. '85 Regal. Lady owned. 50k. Fluid flush when I got it 2 years ago at 40k. 231 TH350. No slipping (been there). It literally just wouldn't get out of first (or second). Once , after a good warm-up and shifting it, it did "go" in to drive, but never again. Fluid level/color was good at the time, but appears it can't have more than half left. The puddle is smack in the middle if the pan. Could something (like modulator or governer) kept it from shifting AND building up pressure some way? I could use a break on this. My '02 Imp has developed a bad shimmy...Oy vey!!!:spank:
I would check for vacuum leakage, inside the vacuum modulator and also the vacuum line from the manifold to the modulator. The modulator makes the tranny shift at light loads at low rpm, without proper vacuum signal it won't shift until the regulator will makes the tranny shift at something like 4500-5000 rpm. And of course fluid has to be at correct level. I don't know if this helps you at all, but my Th400 spewed fluid out from the filler tube when some insect had made a nest inside the breather tube.
Re: How bad is my TH250(metric) ? I'm trying to help myself here, so I managed to get the car up in the air bad back or not. Also first day of decent weather. I noticed the fluid came out from up high. There seems to be no evidence of fluid at the stick, UNLESS the heat burned it off, because there seems to be some puddling on to of the mount area. Hell, maybe it's not even a 350! The pan says it is, but... EDITNOT my pic) my trans does not have this cap (governor) here-just kinda a "plate" that looks held in by a bolt. Also from trying to learn more, I should say it has a wiring plug near there. I didn't get to look from the other side (pass). Decided to crawl under again after more research. It appears that "metric" is stamped on the pan. So, I guess it's NOT a 350. (OP edited)uzzled:
If it is a TH350, it will be a TH350-C, the plug will be for the lock-up converter. My '82 Regal did something similar, when I gave it gas it would pull, and if I let off it would feel like I went to neutral. It would shift to second only if I hard accelerated till the valves almost floated. It turned out it was a broken vacuum line to the modulator. If thats not it, I would change the modulator, thats sounds like what is wrong. Even if you have to change/rebuild the trans youll want a new mod anyway so its not wasted money. They are cheep and easy to change so it cant hurt to try.
]I discovered after more research , that I believe I have a 250 metric (stamped on the pan). Now which part is what on this sucker? :grin: OK, this is driving me crazy! Between different pages and images, I'm starting to confuse myself. As far as I can remember from just a few minutes ago, this is what mine looks like...
Theres a very good chance that you have a metric 200-Cou: Thats why I said ''IF'' on my last post. But my advice is still the same. I would also add to start looking for a good used 2004R, its an easy swap, and a million times better trans. If you have to pull out the metric 200, you never want to put one back in:Smarty: ---------- Post added at 11:41 PM ---------- Previous post was at 11:35 PM ---------- The only thing to look for is if you can unbolt the tail-shaft. The TH350 has a removeable tail-shaft housing. The 200 is a one-piece case from bell to tail.
The TH200 has no vacuum modulator only the throttle valve cable (TV-cable). Check the link below for more info: " If you have a GM automatic overdrive transmission, then you should be familiar with the TV cable. You may also know that an improperly adjusted TV cable can be disastrous to a transmission's life span. First, let's define the term. TV stands for throttle valve, which refers to a small valve in the automatic transmission that determines hydraulic line pressure. This valve is hooked via a cable mechanism to the throttle linkage. As the throttle opens, the cable is pulled out of the transmission, signaling the transmission to increase line pressure to accommodate the additional torque. TV cable position also determines shift quality and firmness and controls all shift timing events. For GM cars, the TV cable is used on the popular TH200-4R and TH700-R4 automatic-overdrive transmissions. This is not the same as the kickdown linkage used on a TH350 transmission." Read more: http://www.carcraft.com/techarticles/ccrp_0401_throttle_valve/viewall.html#ixzz2ILamsAI7
I'm currently looking for info on adjusting the cable. I had some carb work done on it not long before this started to occur. Would this also cause the fluid to puke? I've taken a look at the cable. IT seems to have *some* slack in it, but am having trouble w/ the release(?) Of course, with my luck and abilities, I'm screwed. I just want this running so I can sell it and get another Buick. (This one is a rust bucket...)
A buddy put one of these trannys in his Malibu '78, I remember it took us some time to get the cable adjusted after the swap, but I don't recall any puking of fluid o No:. But it is a long time ago. Good luck, hope it's just a matter of adjusting the cable.
Thanks!!! Your mouth to God's ear. There isn't even anyone local to me that will work on it.:shock: EDIT: I managed to push button, full throttle, release button and release throttle, but this sucker won't slide back in. Or it is supposed to?
