5L50-E Transmission Torque Converter Clutch (TCC) Surge, Shudder or Chuggle (Reprogram TCM)
| Subject: | 5L50-E Transmission Torque Converter Clutch (TCC) Surge, Shudder or Chuggle (Reprogram TCM) |
| Models: | 2004-2006 Cadillac SRX |
| 2005-2006 Cadillac STS |
| with 4.6L V8 Engine (VIN A - RPO LH2) |
Condition
Some customers may comment on a shudder, surge or chuggle on light throttle under light load just after torque converter clutch (TCC) engagement. This occurs with the transmission at normal operating temperature and commanding the TCC off with the scan tool will eliminate the concern.
Correction
A new transmission calibration has been released to correct this condition. Reprogram the TCM using SPS. This new service calibration is available on TIS2WEB.
After reprogramming the TCM, if the condition persists and mileage is greater than 40,234 km (25,000 mi), replace the torque converter, flush the transmission oil cooler, and replace the transmission fluid.
If the condition still persists, contact the Technical Assistance Center.
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation | Description | Labor Time |
|---|---|---|
K5364 | Transmission Control Module Reprogramming with SPS | Use Published Labor Operation Time |
