Transimisson Rebuilt - RPM Problem

[wilkinsde]

I recently had a motor rebuild. While the engine was out my mechanic pulled the tranny and had it rebuilt or refreshed. Not sure what was done. It only cost $300.00. Before the rebuild, the car shifted fine before the transmission was warmed up. After warming I noticed the engine RPM would drop radically when changing gears, as much as 300-400 RPM. I hoped this would go away after the rebuild. It hasn't. The Scanmaster RPM reading when taking off at normal speed changes about 150-175 RPM when tranny is cold. This feels right to me. But after tranny is warm, the RPM change is still 300-400 RPM. It feels kind of like it is falling on it's face. It does have a shift kit installed.

Any suggestions to what this might be? Thanks for your input.

[ULYCYC]

I can't imagine what kind of job you got for $300 Send it out to a pro that knows our cars. List your location so we can recommend a builder.
As for your problem see above

[wilkinsde]

I'm pretty new to this interactive discussion board thing. But I've done a lot of reading and gotten some really good information here. And, I've seen plenty of arrogant remarks to go around just as I have here with this reply. I originally stated that I wasn't sure if the transmission was rebuilt or refreshed. You didn't attempt to answer my specific question about what the problem could be. As most are that visit these discussion boards, I'm trying to save a little money. Thanks for the help!

[ULYCYC]

Not even worth an answer. Good luck

[77 cruiser]

Your TCC solenoid could be sticking & the converter is locking & staying locked as soon as it shifts to 2nd gear.

TH200-4R TCC Solenoid Transmission Problem

[wilkinsde]

This is what it's all about!
Thank you very much for the reply and the resource!

[sixturbo]

Originally Posted by wilkinsde

This is what it's all about!
Thank you very much for the reply and the resource!

My Grand National has had this problem for years and every Transmission guy I have talked to has had a different answer, I can't wait to get the part and fix the problem. I am off to the parts store.... YES!
Thank you

[Orlando_87GN]

One of the great things about an interactive message board is you can pull from others experiences. If your transmission had anything done to it for $300 it's probably wasted. There are a select few people in the country that can successfully work on the BRF transmission in the Buick, because it's calibrated differently than what they are used to, like something that came in a Monte. If your local mechanic messed with your stock transmission he's most likely caused a problem. The most common disaster is installing a shift kit without realizing the transmission isn't like the others, installing a converter with the wrong stall speed or hell, your original transmission might be sitting on the shop floor somewhere all the while the mechanic thinks he gave you a better rebuilt transmission. Worst case scenario is he took the valve body off and switched it with another or put it all back together with Monte Carlo or 'Heavy Duty Limo/Taxi' directions. Before you blow it up or fry the clutches you need to get to the bottom of what was performed, probably undo the changes or send your hopefully original transmission to one of the trusted vendors that can handle the job. There is nothing worse than a fine running Buick with a bum transmission. It will make you want to set a match to the car. Been there, done that, got the T-shirt.

[Orlando_87GN]

I just reread your post and saw that there was a shift kit installed.

If the mechanic did it, you're probably in for a hard lesson learned.

[3.8junkie]

You can re-seal a 200 4R for $300. Not much more.

[turbofish38]

Originally Posted by ULYCYC

I can't imagine what kind of job you got for $300:

FWIW $300 will buy you the parts and than some to rebuild a 200-4R.Not enough for a 10 second monster but a good street or DD job. I've got one of the techs out in my shop that charges me that plus another $250-$400 to rebuild a tranny. And before this tech I had another tech do the entire job for $300 parts and labor. And that had to have been the best bang for the buck as far as tranny rebuilds go. It was dailed in right off the bench. You know I have to agree on the arogant remarks too. Why does everybody assume that $300 cant even get you a filter changed on these POSes? Nobody knows who the tech was.Nobody knows what he replaced. Just because it cost less than a mint automatically makes it a bad job? Heck maybe the damn TV cable just needed adjusting. He didn't say who installed the shift kit. Maybe he should take it back to the tech and have him dial in the intermediate servo pin. It's all a guess. While I agree that it takes some fineese to build a good transmission I will say that money does not equate to a piss poor job. Not everybody is building a TSM car and has to every F'n billet part ever made. Why doesn't everybody understand that? Okay off my soapbox.

[ULYCYC]

Eric your in the business and so was I. I pulled a motor Saturday out of a 87 442 and only cost my friend lunch. That's not really the point. We all know many shops treat out trans like any other as Mike said. They have special calibrations in the valve body and governor. The D5 converter is also unique. But you know all this. When someone says $300 to rebuild our trans a red flag goes up. We all know the horror stories we real on all the boards from AAMCO and other unknown little shops. As for this posters problem. I was not being arrogant but telling the truth. As I said above the "red flag" of the $300 rebuild trumps all the possible suggestions of what may be wrong. If the governor was bad it did not get a new one. He did not take an hour to flush, rebuild the BRF valve body. It went in the tank and one from a taxicab went back in. Who knows what converter they used. I'm friends and local to CK Performance and Dynotech (Eric Schertz). I'm at there shops all the time and see what is done on budget rebuilds. Eric just rebuilt a T400 for me that I did myself a few years ago. He said he won't tell anyone what I fukked up.

[3.8junkie]

Originally Posted by turbofish38

Not everybody is building a TSM car and has to every F'n billet part ever made. Why doesn't everybody understand that? Okay off my soapbox.

Excellent point. +1

Was the problem ever corrected? I didn't see an answer to this.

[ULYCYC]

Originally Posted by 3.8junkie

Excellent point. +1

Was the problem ever corrected? I didn't see an answer to this.

Who's talking about TSM builds That's just one of Eric's caffeine rants I've seen too many to count sh!t rebuilds come out of local shops or weekend mechanics. They blow up or go bad running 12's and 13's. or just street use.

[Steve Wood]

What is amazing is that anyone that reads the boards would entrust his tranny to someone that does not know anything about them and then wonder why it does not act right after spending $300.