| Reluctant shifting / transmission issues and tons of codes
First of all, I want to say that this is my first post. I have searched through these amazing forums for days and I have not found anything that I think would help me. Also, I will be the first to admit that I am not a car expert, so forgive me if I seem uneducated.
Here are the problems. They all seem to be related.
1.When I start the car from a cold start and put it into drive and hit the gas, my engine revs but my car will move very slowly. 3000 RPM will get me 3MPH. After it warms up, I am able to drive like normal. This has only happened once, but it is happened at the same time some other transmission issues seem to be happening.
2.Depending on how I accelerate, my car will usually shift from 1st to 2nd between 2000 and 2800 RPM. But lately, when the engine is cold, it will rev to 3000RPM, stay there for 5-10 seconds, then reluctantly shift to 2nd. (It seems like my car is not transferring engine power to moving power)
3.I used to be able to cruise at 40MPH @ 1100 RPM. I have now noticed that 95% of the time, the car will cruise at 40MPH @1400 RPM.
4.When the car is shifting (as in DURING the shift) from 3rd to 4th gear, (usually 2000RPM to 1300RPM, the tach will “flutter” (up down up down reallyfast within a range of 100RPM) around 1500RPM before finally settling down at 1300RPM.
5.When on the highway, my car can usually do 70MPH @ 2000 RPM. When I accelerate to reach 70MPH and let my foot off of the gas pedal, my car will stay @2600 RPM, even though I am done accelerating and my foot is light on the gas. It takes about 10 seconds for the tach to finally drop to 2000 RPM. At 2600RPM and 2000RPM, my car is at the same speed.
Important Info.
The car is a 2000 Cadillac SLS (4.6L N*) with 202,000 miles. I am the third owner, and acquired it at 170,000 miles. The ABS light is on, the traction control light is on (the button sticks, I assume it does not work), and it leaks and burns oil (I keep my eye on it). The car idles warm @ aprox 700 RPM with very very slight roughness.
I asked a guy at an auto parts store and he recommended changing the transmission filters.
Codes Pulled...
ABS C1214 Current: System Relay Contact or Coil Circuit Open
C1246 Current: Brake Lining Wear Circuit Open
C1248 Current: EBCM Turned the Red Brake Warning Indicator On
C1221 History: Left Front Wheel Speed Sensor Input Signal is 0
C1227 History: Left Rear Excessive Wheel Speed Variation
C1282 History: Yaw Rate Sensor Bias Circuit Malfunction
C1295 History: Brake Lamp Switch Circuit Always Active
U1056 History: Loss of Communications with RSS
DIM B1324 History: A/C Refrigerant Overpressure
B1983 History: Device Power Circuit Low
U1255 History: Class 2 Communication Malfunction (Serial Data Line Malfunction)
DIM/IRC U1016 History: Loss of Class 2 Communication with VCM / Loss of Communications with PCM
PCM P0403 Current: Exhaust Gas Recirculation (EGR) Solenoid Control Circuit
P0340 History: Camshaft Position (CMP) Sensor Circuit
P0404 History: Exhaust Gas Recirculation (EGR) Open Position Performance
P1617 History: Engine Oil Level Switch Circuit
RIM B1007 History: EEPROM Write Error
Sorry about such a long post, but I tried to be thorough. I just want to make sure my transmission is alright and not about to die. That is my main concern. But any more info on the other codes would be helpful as well. This is a car with a lot of miles on it that I got for $500. I am in no hurry to spend a ton of money on it to make it like new. Thanks for any help
-200000sls | 
