The bulletin was issued last month, and states that some of the full-size SUV models could have one to two engine oil cooler lines that are not fully seated into the quick connect at the radiator.
Affected vehicles include the following:
2021 Chevy Tahoe
2021 Chevy Suburban
2021 GMC Yukon
2021 GMC Yukon XL
The TSB was issued specifically for vehicles in dealer inventory. Dealers are instructed to inspect the engine oil cooler lines at the quick connector on the radiator in order to ensure they are properly seated before selling or dealer-trading the vehicle.
No parts are required for the fix. However, catastrophic engine failure can occur if the oil cooler line is not properly seated. There are a total of two lines to check.
Affected vehicles include the following:
2021 Chevy Tahoe
2021 Chevy Suburban
2021 GMC Yukon
2021 GMC Yukon XL
The TSB was issued specifically for vehicles in dealer inventory. Dealers are instructed to inspect the engine oil cooler lines at the quick connector on the radiator in order to ensure they are properly seated before selling or dealer-trading the vehicle.
No parts are required for the fix. However, catastrophic engine failure can occur if the oil cooler line is not properly seated. There are a total of two lines to check.
