Question about 2002 Cadillac Sts
We see this all the time, in order to repair the problem you will have to remove the transmission, but you don't have to repair it, the car will still run just fine.
what the TCC is, is a lock up torque converter when the engine is over a certain temperature and the car is at cruse and not under any type of load, the on-board computer opes a passage inside the transmission that allowes fluid pressure to apply a lock up clutch inside the torque converter, what this does is make a solid direct link between the engine and transmission, witch will allow the engine to operate at a slightly lower RPM around 300 RPM and this will give you slightly better fuel mileage around 2 more miles to the gallon.
if you don't repair the problem the engine will run at a slightly higher RMP and get a little less fuel millage, but the car will run just fine.
this is a common problem and we see most owners not fix the problem and just ignore the light or cover it up.
so don't panic, you are just one of many who have this problem and although it would cost around $1,000-$1,400 to repair the problem, you don't have to repair if you don't want to.
Good luck, and let me know if there is any thing else you need.
Posted on Apr 15, 2011
Replace the tcc solenoid only and see what happens, the trans stays in the car upon replacing that part. It maybe the only faulty part you have instead
Posted on Apr 09, 2011
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Posted on Jan 02, 2017
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