Chevy Automotive Bulletins

LB7 Duramax Injector Failure: Symptoms, Causes ...

Bad LB7 Duramax injectors can cause white smoke, rough idle, hard starts, fuel in the oil, poor fuel economy, excessive haze, and even serious engine damage if the issue is...

LB7 Duramax Injector Failure: Symptoms, Causes ...

Bad LB7 Duramax injectors can cause white smoke, rough idle, hard starts, fuel in the oil, poor fuel economy, excessive haze, and even serious engine damage if the issue is...

7 Warning Signs Your LLY Duramax Injectors Are ...

Catching bad LLY Duramax injectors early can help prevent bigger problems down the road. A failing injector can affect performance, damage pistons, contaminate engine oil, and leave you stranded if...

7 Warning Signs Your LLY Duramax Injectors Are ...

Catching bad LLY Duramax injectors early can help prevent bigger problems down the road. A failing injector can affect performance, damage pistons, contaminate engine oil, and leave you stranded if...

Duramax (LB7) Injector Removal and Installation

"Start by removing the lower valve cover. Carefully watch for debris as fuel injector lines are removed. It is possible for debris to fall into these openings/fittings. Remove any debris...

Duramax (LB7) Injector Removal and Installation

"Start by removing the lower valve cover. Carefully watch for debris as fuel injector lines are removed. It is possible for debris to fall into these openings/fittings. Remove any debris...