If your 6.6L Duramax truck is sounding rough, stalling, or misfiring regularly — your injectors may be to blame. Other signs of failing Duramax LLY injectors include poor fuel economy and erratic movements from your truck’s RPM needle.
On average, you’ll need to replace your injectors for LLY Duramax every 50,000 to 100,000 miles. How often that actually is will depend on how you use your truck. For some, their truck’s LLY Duramax injectors will last a decade, for others only a couple of years. +Read more
To ensure a longer working life from your injectors for 6.6 LLY Duramax, consider purchasing injectors from a known brand. While a generic part may be cheaper, spending the extra cash on a part like the Bosch injectors for LLY Duramax may lead to savings in the long run.