Service bulletin TechTalk8157
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
| Type | Service bulletin |
|---|---|
| NHTSA id | 10188018 |
| Published by NHTSA | 2021-03-03 |
| Manufacturer's number | TechTalk8157 |
| Manufacturer's date | 2021-02-22 |
| NHTSA component | ENGINE AND ENGINE COOLING |
NHTSA's summary
Tech Talk discussion on HEAD GASKETS LEAKING OIL ON DD16 AT HEAD GASKET TO BLOCK.
The document
The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.
Components
Engine
| WESTERN STAR 5700 | 2018 |
|---|
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| CXA 3_25_NOx | 2025-04-02. Other. CX Advocate for NOx conversion low faults |
|---|---|
| CXA 2_25_Turbo Oil Drain | 2025-03-04. Other. CX Advocate for turbo oil drain cracking |
| CXA 2_25_NOx | 2025-03-04. Other. CX Advocate for NOx conversion low faults |
| CXA 1_16_Turbo Oil Drain | 2025-01-29. Other. CX Advocate for turbo oil drain cracking |
| CXA 1_16_NOx | 2025-01-29. Other. CX Advocate for NOx conversion low faults |
| CXA 1_16_GATS2.4 | 2025-01-29. Other. CX Advocate for GATS2.4 being expanding to DD15 |
| CXA 1_16_DD13 Altitude | 2025-01-29. Other. CX Advocate for DD13 Gen 5 engines operating at high altitude experience EGR slow response fault. |
| CXA 1_16_CARB Truck Chec | 2025-01-29. Other. CX Advocate for CARB tightening the Readiness Criteria applied to On-Board Diagnostic (OBD) test submissions for the Clean Truck Check. |
| CXA 11_21_CARB Truck Chec | 2024-12-04. Other. CX Advocate for CARB tightening the Readiness Criteria applied to On-Board Diagnostic (OBD) test submissions for the Clean Truck Check. |
| WI24-019 | 2024-12-04. Warranty extension. Warranty Information letter for Detroit Line or Line Seal, High Pressure Fuel Injector Standard Repair Time Updates |