Injector failures on 2001 GMC duramax 6.6 diesel engine. Injectors failed and replaced under warranty at 167,000 miles, failed again at 197,000 miles and replaced under warranty. G M customer service said they would replace them under warranty if they failed again in such a short period of time. Injectors failed at 234,000 miles and GM customer service renigged on their word. Many others have had failures in 30,000 to 40,000 miles. They are replacing parts with remanufactured parts and they are not lasting. GM dealers are charging $3600 to $4,500 to replace these injectors out of warranty. It is plain that they know that there is a problem with the injectors when they extended the warranty on injectors from 100,000 to 200,000 miles or seven years. They get away with this because most people do not drive their vehicles that much in seven years. All I wanted was a fair deal and did not get it.

- Natchez, MS, USA