Information On Gasoline Engine Replacement Guidelines After Connecting Rod Or Crankshaft Main Bearing Damage - Replace Oil Cooler, Oil Cooler Lines, Oil Tank And Turbocharger (22-NA-074)
Publication date: 2023-05-19Reference number: 22-NA-074
INFORMATION ON GASOLINE ENGINE REPLACEMENT GUIDELINES AFTER CONNECTING ROD OR CRANKSHAFT MAIN BEARING DAMAGE - REPLACE OIL COOLER, OIL COOLER LINES, OIL TANK AND TURBOCHARGER
TECHNICAL SERVICE BULLETIN
SERVICE INFORMATION
| Brand: | Model: | Model Year: | VIN: | Engine: | Transmission: | ||
|---|---|---|---|---|---|---|---|
| from | to | from | to | ||||
| All | GM Passenger Cars and Trucks | 2000 | 2023 | - | - | Gasoline Engines Only | - |
| Involved Region or Country | North America, Europe, Uzbekistan, Middle East, Iraq, Israel, Palestine, Argentina, Brazil, Bolivia, Chile, Colombia, Ecuador, Paraguay, Peru, Uruguay, Venezuela, Japan, Cadillac Korea (South Korea), GM Korea Company, China, Taiwan, Thailand, Singapore, Philippines, Australia/New Zealand, Egypt, Other Africa, South Africa |
| Information | The purpose of this bulletin is to inform service personnel that any time an engine assembly is replaced due to a connecting rod or crankshaft main bearing failure, it is necessary to also replace the oil cooler, oil cooler lines, oil tank and turbocharger if equipped
. If an engine experiences an engine failure due to a damaged rod or main bearing the debris from the bearing is sent directly through the oil galleries and components that are in the lubrication circuit. These oil passages and components are very difficult to ensure they are completely clean. If one of the failed components that carries oil is not clean and installed on a new engine there is the possibility that the debris could transfer to the new engine causing damage. Oil cooler, oil cooler line, oil tank and turbocharger replacement is required due to the complex oil gallery passages, making thorough and complete component cleaning difficult and guarantee you completely removed all the debris. Reinstallation of an oil cooler and/or cooler line that was removed from an engine with a bearing failure debris may result in the transfer of any remaining debris into the new Genuine GM Part service engine. This could cause damage or potential failure of the new Genuine GM Part service engine long block. Below are pictures of connecting rod or crankshaft main bearing failures that would warrant an engine replacement along with the oil cooler, oil cooler lines, oil tank and turbocharger if equipped. Note: Some service engines come with the oil cooler and/or oil cooler line(s) already attached to the new service engine. In this case, replacement of those components is not necessary.
NOTE:
Not every engine that has bearing damage requires an oil cooler, oil cooler line, oil tank replacement or even the engine to be replaced. Please refer to Service Bulletin # 18-NA-073: Repair Guidelines for Engine Component Wear for additional information. |
SERVICE INFORMATION
Service agents must comply with all International, Federal, State, Provincial, and/or Local laws applicable to the activities it performs under this bulletin, including but not limited to handling, deploying, preparing, classifying, packaging, marking, labeling, and shipping dangerous goods. In the event of a conflict between the procedures set forth in this bulletin and the laws that apply to your dealership, you must follow those applicable laws.
SERVICE INFORMATION
Below are examples of connecting rod or crankshaft main bearing damage that would require an engine assembly replacement along with the oil cooler, oil cooler lines, oil tank and turbocharger if equipped.
SERVICE INFORMATION
| Version | 3 |
| Modified | Released March 31, 2022 Revised November 09, 2022 - Added the 2023 Model Year. Revised May 19, 2023 - Added Turbocharger replacement information to the Information section and added the Important statement. |