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Trans Problems!!!!


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I was coing away from a stop light last week when I noticed that my car didnt seem to want to shift into gear anymore. I hit the gas brought the engine up to about 300 rpms and i was barely moving. Then al of a sudden it would shift into gear and things would seem ok untill I stopped again. Im not sur ewhat gear it shifted into but I was moving : ) It seemed smooth untill i stopped again and tried to accelerate again. Anyway I have it at some hole in the wall trans shop because thats about as far as I wanted to drive the car. They told me today that they dropped the pan and the solenoids didnt "look" broken and that they want to talk to me tomorrow. Doesnt sound good. IDK my trans fluid smelled fine and im not getting any coded period. I kind of get the feeling theyre about to stick it to me. What would you guys do in my place? Do you think its likely that my trans could go tits up without setting any codes?

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How is the trans speed sensor and related wiring? Just a guess...but it may be a speed sensor related problem. I had a situation occur several times where I would be driving and suddenly the trans would disengage and rpms would rev. When I gave it some gas it would engage again. One day it happened again and it caused a P024 code.

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I had a problem with my 99 sts.When I started the car it made a whining sound when I would put in drive it would slip bad .I have a friend that is a caddy mech said it was the pump in the trans .He said the bands would be burned on the surface. I found a used trans for $600 and we changed it out and we are good to go. Good luck!!

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Can the torque converter fail without setting any codes? I thought that these things were smart enough that they would set a code if just about anything malfunctioned... BTW if they have to pull the trans for any reason should it be completely rebuilt or jut repaired and put back in?

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They called me back today and it appears that "some piece of junk was caught in the valve body. IDK my brother fixed it." Well I dont know what to say about that other than I am happy its running and didnt cost me a few grand. Total bill $275. I can deal with that.

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They called me back today and it appears that "some piece of junk was caught in the valve body. IDK my brother fixed it." Well I dont know what to say about that other than I am happy its running and didnt cost me a few grand. Total bill $275. I can deal with that.

I'm glad to hear it wasn't a major problem. Let's hope everything remains copacetic. ;)

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hmmm, you are lucky! terrific... plus you have an honest mechanic

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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Well when I picked it up he said that it wasnt the solenoids. He changed them out anyways bc of the update kit. He said the problem was a piece of gunk caught in the valve body and that the trans was on it way out. What do you guys think about that? Does it sound like hes blowing smoke up my *smurf* or do you think that maybe the clutch is throwing some crud out and maybe it IS on the way out? If its going out Impala SS here I come.

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Maybe I misunderstood something here. What did you mean when you said, IDK my brother fixed it? You say that he said the tranny was on its way out. Why did he say that, did you ask him? What did he find in the pan when he dropped it? If he saw flaky clutch material, that would be a bad omen.

You appear frustrated with the idea that your tranny might crap out, try to remember that you have a 13 year old car and tranny's age (seals dry out and clutches wear). As the seals wear they apply less force and the clutches wear at an accelerated rate.

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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Sorry maybe I should have been more clear. The person I talked to at the shop said that he didnt work on it, his brother did. I never got to talk to the guy that actually did the work. As I was paying for it I was told that the trans was on the way out by the brother of the guy that worked on it. If there was a chunk of "gunk" in the valve body that was preventing it from shifting normally,...thats bad right? : P Other than that its shifting just like it ever has. Would I be noticing some sort of bad shifting or does the 4T80E correct for slipage? Im just trying to decide what to do,...should I start looking for new cars?

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I hear the 4T80E is bulletproof along with the N* oil pump. (I think the stainless exhaust is bulletproof too).

As far as the tranny, If it's running good, I'd be happy to have got off cheap. I wouldn't add any conditioner or stuff, or change the fluid or get a flush. I heard the change in PH? in the fluid can cause undesireable reactions to the internal seals etc. - My opinion

Besides, if you get a flush, that debree floating around your tansmission will get sucked into the flushing machine, and lodge in the next guys tranny & give him a hedache. :)

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If I were you I would speak to the guy that did the work and find out what he found in the pan.... that will tell a lot about the condition of your tranny.

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

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Sorry maybe I should have been more clear. The person I talked to at the shop said that he didnt work on it, his brother did. I never got to talk to the guy that actually did the work. As I was paying for it I was told that the trans was on the way out by the brother of the guy that worked on it. If there was a chunk of "gunk" in the valve body that was preventing it from shifting normally,...thats bad right? : P Other than that its shifting just like it ever has. Would I be noticing some sort of bad shifting or does the 4T80E correct for slipage? Im just trying to decide what to do,...should I start looking for new cars?

The first thing I would do is call the shop back and ask them exactly what was causing the blockage..I.E. was it single piece of plastic? or was it an accumulation of some small particulate matter? ...Get them to confirm what exactly what was clogging the trans...I don't want to jump the gun, but this whole "Don't ask me what happend...all's I know is my brother found some gunk up in there" reply sounds a bit fishy...However your trans is working, and they gave you a good price (and didn't pressure you to spend $2000 on a rebuild) so maybe these guys are legit.

IMO your in the dark untill you find out what exaclty was clogging the valve body. If it was clutch material then yea, your trans. probably is on it's way out...But I would have to think you would have some other drivability issues if that were the case. Now if a piece of plastic was responsible for the clog, well then it could just be a one time deal..Like a small chunk breaking off of the valve body spacer plate.

In regards to the trans. slipping....I believe you can test the transaxle slippage by running one of the PCM overides located in the FSM..Im pretty sure this overide is present in all PCM's with OBD-I

A.J.

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