Hey guys my buddies gtp started to buck much like me regal did. He took it to a transmission shop, the tech there said he would have to replace the epc valve solenoid and the valve body. He got a code 1811. he was estimated 1200 dollars.
In my knowledge with these cars. when this happens you replace the tcc solenoid, the pressure control solenoid, and the epc. You don't have to even touch the valve body am I correct.
I contacted my local transmission shop about this they told me that replacing the valves alone would not likely fix the problem and its only like a 30% chance that it will work. Does any of this sound right to you guys?