Hi Guys , I have come to this site toget an idea what the cost would be on a rebuilt transmission I guess, AnywayMy 96 Seville sls has had service engine light, trac light (on and off)and service transmission message for six years now . When it first started I had the transmision drained, no metal shaving; but was told by the Cadillac dealership shop that I needed to have my transmission rebuilt at the time car only had 76k that the Torque convertor seal was leaking. Well I didn't do anything else other than have it flushed and new fluid. Now six year later and 51k mile (127k miles now on her) and the service Transmission light message stays on and SERVICE ENGINE LIGHT stay on and I think she has started slipping out of overdrive. When I get onto the interstate and run 70mph for about 2 miles in overdrive at 2100 rpms the rpms race up to 3000, I let off the gas, rpms come down I accelerate again and I'm fine. It doesn't do it all the time and then it's intermittently. Some days it doesn't do it at all. Today I took my car to the mom and pop shop across from work and had them run a scan they are getting the codes P0741 & P1574. Same codes Advance Auto got but were free and Pop charged me $50 go figure! Pop said I could let it go until she gives out completely or go have it rebuilt. I just don'tunderstand, I guess being a girl why does the transmission need to be replace; why aren't going to fix mine, replace the seals, the solenoids and stuff and put it back in? They will replace it so why do they call it a rebuilt job? I just get a bad taste in my mouth; look six years ago they wanted me to spend $3500; glad I held off! Can you help? She also has a small oil leak back of the engine area which could be taken care of at the same time the trans work is being done right? The engine does burn oil about a quart between oil hanges (told that was normal for the Northstar engine). Update: Over the weekend I decided not to let off the as and see what would happen if I pushed her, not good, it was like it wasn't the transmission at all like she was misfiring rpms were up at 3000 at 75mph but she was surging jerking...I had all plugs & plugwires replaced about 20k miles ago? Could this be a misfire? If so shouldn't the mechanic got a code on this too? Or is this the reason for the second code P1574? God what is a girl to do to find a good mechanic these days she can trust? I'm not stupid but why do all shops what to keep you in the dark? I know they only see people when something is broke and we need em to fix it but come on don't take us to the cleaners! I really want her to be in good health I would like to keep her on the road for another 100k, instead of buying another car I would like to spend the money on her running like new, new paint is this a good idea I just need to find a good mechanic in south georgia!