Automotive Forums  Where Car Enthusiasts Go to Discuss Cars Online

I have over 146,000 miles on my van. It was shifting hard and missing 1st and 2nd gear. I took it into get worked on 4 weeks ago to a tranny shop. They rebuilt the tranny and it is throwing code 1811. They have replaced the PSC, and reworked the tranny again. Now they say it is the PCM telling the torque converter to shut down amd the only code it shows is 1811. Has any one had this isssue with there tranmissions after getting work done on it?  

Possible causes of DTC PO1811


Fluid level low
Oil filter and seal missing, plugged or damaged
Spacer plate and gasket damaged or misassembled
PC solenoid valve damaged or contaminated
Pressure regulator valve line-up binding or damaged
Torque signal valve line-up binding or damaged
Oil pump assembly damaged or missing components.
1-2 accumulator piston seals rolled or damaged
1-2 accumulator piston and pin missing, binding or damaged
Forward servo assembly damaged or misassembled
Oil pump assembly damaged or missing components
Spacer plate and gaskets damaged or misassembled
Driven sprocket support seals damaged or missing
Second clutch piston and seal assembly binding or damaged
Second clutch fiber and steel plates misassembled, burned or damaged
Second clutch spring assembly damaged or misassembled
Forward band burned, damaged or misassembled
1-2 support roller clutch assembly damaged or misassembled