| Subject: | Coolant Leak At Upper Radiator Hose (Replace Hose) | 
| Models: | 2006 Cadillac DTS | 
Some customers may comment on a coolant leak. Technicians may find a coolant leak at the radiator inlet (upper) hose where the hose attaches to the radiator.
This condition may be caused by a nylon tracer thread inside the hose that may cut through the inner layer of the hose during the hose manufacturing process.
Do This  | Don't Do This  | 
|---|---|
Replace the radiator inlet hose.  | Don't replace or reposition the radiator hose clamps.  | 
Technicians are to replace the radiator inlet hose with P/N 21999689. Refer to the Radiator Inlet Hose Replacement procedure in the Engine Cooling section of SI for more information.
Part Number  | Description  | Qty  | 
|---|---|---|
21999689  | Hose Assembly - Radiator Inlet  | 1  | 
For vehicles repaired under warranty, use:
Labor Operation  | Description  | Labor Time  | 
|---|---|---|
J3362  | Hose, Engine Coolant - Upper -- Replace  | Use Published Labor Operation Time  |