Transmission Oil Cooler Lines Deletion of Cooler Thermal Bypass Valve - keywords 5L40E 5L50E automatic bypass chafe fitting leak rub
| Subject: | Transmission Oil Cooler Lines Deletion of Cooler Thermal Bypass Valve |
| Models: | 2004-2005 Cadillac SRX |
| 2005 Cadillac STS |
The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.
Condition/Concern:
A change in production removed the transmission cooler thermal bypass valve effective December 2004.
Recommendation/Instructions:
If replacing transmission oil cooler lines on a vehicle prior to the VIN breakpoints listed below, it is possible to receive the second design cooler lines. Second design cooler lines can be identified by a 90 Degree bend at the transmission end. In this case, it will be necessary to replace both lines and discard the thermal bypass valve that is mounted to the transmission. The first design cooler lines can be identified as being straight at the transmission end.
SRX and STS production VIN break points:
Model | Engine | VIN |
|---|---|---|
SRX | LY7 3.6L VIN 7 engine | 1GYEE637150180965 |
SRX | LH2 4.6L VIN A engine | 1GYEE63A750180934 |
STS | LY7 3.6L VIN 7 engine | 1G6DW677850180974 |
STS | LH2 4.6L VIN A engine | 1G6DC67A450180961 |
Part Number Information:
Note: The current parts catalog does not show the correct usage for the STS 4.6 application.
Part Number | Position | Usage |
|---|---|---|
89022495 | Lower | SRX and STS LY7 3.6 VIN 7 engine |
89022496 | Upper | SRX and STS LY7 3.6 VIN 7 engine |
89022497 | Lower | STS LH2 4.6 VIN A engine on all models EXCEPT vehicles with V09 and without V92 |
89022498 | Upper | STS LH2 4.6 VIN A engine on all models EXCEPT vehicles with V09 and without V92 |
89022497 | Lower | SRX LH2 4.6 VIN A engine |
89022498 | Upper | SRX LH2 4.6 VIN A engine |
Please follow this diagnosis process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.
