Driveline Clunk Noise On Light Acceleration (Tip In) and/or Deceleration (Tip Out) Most Noticeable at Lower Speeds and/or Firm Down Shift When Coming to a Stop (Reprogram TCM and/or ECM)
| Subject: | Driveline Clunk Noise On Light Acceleration (Tip In) and/or Deceleration (Tip Out) Most Noticeable At Lower Speeds and/or Firm Down Shift When Coming to a Stop (Reprogram Transmission Control Module (TCM) and/or Engine Control Module (ECM)) |
| Models: | 2004-2005 Cadillac SRX |
| 2005 Cadillac STS |
| with Transmission 5L40-E (RPO MX5) or Transmission 5L50-E (RPO MV3) and |
| All Wheel Drive (AWD) (RPO MX7) |
| Built Prior To November 1, 2004 |
Condition
Some customers may comment on a driveline clunk noise on light acceleration (tip in) and/or deceleration (tip out) most noticeable at lower speeds; other customers may also comment on a firm/harsh coast down shift as the vehicle comes to a stop.
Cause
This condition may be caused by the TCM and or ECM calibrations.
Correction
Important:
• The 2004 SRX AWD V6 requires reprogramming of BOTH
the ECM and TCM calibrations. The TIS screen will reference a driveline clunk concern for both calibrations. • The 2004 SRX AWD V8 requires reprogramming of ONLY
ECM calibration. The TIS screen will reference a revised fuel tank level diagnostic which does contain the driveline clunk concern calibration fix. • The 2005 SRX and STS AWD V6 DOES NOT
require any reprogramming. The calibrations were introduced into these vehicles at the start of the 2005 V6 AWD production. • The 2005 SRX and STS AWD V8 requires reprogramming of ONLY
the ECM. The TIS screen will reference the drive line clunk concern.
Year | Model | Module Reprogram | TIS Reference | TIS Calibration Number |
|---|---|---|---|---|
2004 | SRX V6 AWD | ECM AND TCM | Drive Line Clunk | ECM #12597757 TCM #24233803 |
2004 | SRX V8 AWD | ECM | Fuel Tank Level | ECM #12597805 |
2005 | SRX and STS V6 AWD | Not Required | N/A | N/A |
2005 | SRX and STS V8 AWD | ECM | Drive Line Clunk | ECM #12596051 |
Reprogram the appropriate module or modules according to the chart above with a new service calibration released with TIS satellite data update version 10.5 on October 18, 2004 or newer. Refer to Service Programming System (SPS) SI Document ID #1265170.
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation | Description | Labor Time |
|---|---|---|
J6354 | Engine Control Module - Reprogram | Use Current Published Labor Time |
K5364 | Module, Transmission Control - Reprogram | Use Current Published Labor Time |
