Check Engine Light was on when I bought the car, Had Autozone check it and it read P0741 and P1860, Tork Converter !!! Not sure what to do at this point !
I have driven the car for almost 10,000 miles so far and have had No problems with the Trans, Should I still be concerned ? Is it possible its something else causing this check engine light to stay on ? Maybe a sensor ??
tcc code came on due to transmission problem...Have not fixed yet...sucks that cadillac cant make a better product thats so expensive to fix
Also had TCC fault. Had service manual and was attempting to do a test on the 6-8 wire round electrical connector to the transmission. Near top of transmission but not too easy to see or get to. I got connector loose and tried to test, then gave up for awhile and reconnected. But this caused TCC fault to go away! Yes higher gas mileage returned! I think the connector had developed a bad connection on some of the terminals. I took connector off again later and dabbed a little terminal grease on each prong and never had a re-occurrence. This is a good maintenance technique for any connection you work with on an older car.
Check engine light came on and threw codes P0741 & P1860. Since I intend to keep this car for a while longer, I had the transmission replaced $3400
this is such a common problem i wrote a couple reports but it came up under 2000 deville u can read my night mare there u tube has a demo on it that u dont have to drop tranny caddilac knew of these problems but kept it quiet
The car still runs fine with a couple fewer mpg. The problem is it won't pass emissions inspection with a check- engin light on.
Well maintained transmission began slipping @ 99000
R&R trans and torque converter $2700
same problem. light does not come on till on freeway