Having problems with your 2003 Cadillac Deville ?

Service engine soon light came on and stays on

\015 I have a 2003 cadillac sedan deville that i just bought from a reputable car lot as is with no warranty and the service engine soon light came on and did not go off what could cause the light to come on so soon as i just got the car like yesterday.\015 Posted / edited by AnonymousUser on : 26-07-2021

Answers :

The warranty company was able to find a used transmission for $900 which was still under warranty and it will cost 11.5 hours for the install, plus shop supplies and diagnostic. Total cost about $2000. I drove the car for probably at least 10,000 miles and it was leaking a small amount of transmission fluid even after I fixed a seal (waste of money) before getting it fixed. I didn't see the fluid though on my garage floor though as there is something that would catch it.
\015\012Cadillac dealer stated this is a known problem with the clutch assembly and that there is a bulletin out on it. The reason the car stalls is due to the transmission not the engine. When the car is at a light or the like there is apparently too much strain from the tranny and it stalls the engine. My car didn't get that far, but after reading a bunch of stuff and looking up the codes it appears to be the case. Of course you could get lucky and the solenoid is just bad, probably not though due to the bulletin.
\015\012You can read the codes and clear the codes easy enough. If you don't know how there are many posts on the net.
Maybe just the mileage triggered the computer to turn it on.
Repair Help & Product Troubleshooting for 2003 Cadillac Deville

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