Engine Overheating (09-006-25)
Publication date: 2025-03-27Reference number: 09-006-25
ENGINE OVERHEATING
TECHNICAL SERVICE BULLETIN
Reference Number(s): 09-006-25, Date of Issue:
March 27, 2025
| CHRYSLER: | 2022 - 2024 (WS) Wagoneer/Grand Wagoneer |
| GROUP: | 09 - Engine |
VEHICLES AFFECTED
2022 - 2024 (WS) Wagoneer/Grand Wagoneer
This bulletin applies to vehicles built on and before October 01, 2024 (MDH 1001XX) equipped with a 3.0L I6 Hurricane Twin Turbo ESS Engine (Sales Codes EFC or EFH).
CUSTOMER SYMPTOM
Customers may experience the following:
- Engine overheating with "Engine Overheated" message in the Instrument Panel Cluster (IPC).
NOTE:
The vehicle will be operable but at a reduced level of performance.
CAUSE
Thermostat
NOTE:
This Technical Service Bulletin (TSB) has also been released as a Rapid Service Update (RSU) 25-047, date of issue March 27, 2025.
REPAIR SUMMARY
This bulletin involves replacing the engine thermostat.
CLAIMS DATA
CLAIMS INFORMATION
| Labor Operation No: | Labor Description | Skill Category | Labor Time |
|---|---|---|---|
| 07-40-01-94 | Thermostat, Engine - Replace (1 - Introduction) | 1 - Engine Repair and Performance | 2.5 Hrs. |
| Failure Code | ZY | Service Action |
RELATED LOPS
CLAIMS INFORMATION
| Labor Operation No: | Labor Description | Skill Category | Labor Time |
|---|---|---|---|
| 07-FF-01-50 | Drain and fill (1 - Introduction) | 1 - Engine Repair and Performance | 0.3 Hrs. |
OPTIONAL EQUIPMENT
CLAIMS INFORMATION
| Labor Operation No: | Labor Description | Skill Category | Labor Time |
|---|---|---|---|
| 09-01-70-60 | Air suspension equipped (2 - Semi-Skilled) | 1 - Engine Repair and Performance | 0.2 Hrs. |
| 07-40-01-6B | Skid Plate Equipped (2 - Semi-Skilled) | 1 - Engine Repair and Performance | 0.1 Hrs. |
SPARE PARTS
PARTS INFORMATION
| Qty | Part No. | Description | Notes |
|---|---|---|---|
| 1 (AR) | 68672901AA | Thermostat | (2022 - 2023 MY Only) |
| 1 (AR) | 68361650AH | Thermostat | (2024 MY Only) |
| 1 | 68503555AB | O-Ring | |
| 1 | 68361712AB | Gasket, Water Pump Outlet | |
| 1 | 68517705AA | O-Ring - Turbo Oil Drain Line | |
| 1 | 68517717AA | Seal | Gasket - Front Turbo Oil Drain Line |
| 2 | 68163849AB | Coolant | 50/50 Mix-1 Gal |
DIAGNOSIS
If the customer describes the symptom/condition listed above, perform the Repair Procedure.
REPAIR PROCEDURE
NOTE:
This is not a proactive repair. This Repair Procedure is to only be performed under this RSU if the vehicle exhibits the symptom/conditions listed in this document.
- Replace the engine thermostat. Refer to the detailed service procedures available in DealerConnect> Service Library under: Service Info> 09 - Engine, 3.0L GMET6/Cooling System/Engine Cooling/Thermostat/Removal and Installation.
POLICY
Reimbursable within the provisions of the warranty.