PROSOURCE BRAND BANNER
PROSOURCE BRAND BANNER

Fuel Systems for 2011-2016 6.6L LML Duramax

When GM replaced the LMM platform in 2011 with the LML, they also updated the Duramax 6.6’s fuel system. However, this resulted in new issues with the fuel system. +Read more

One of the most well-known problems is the LML injection pump, which is prone to complete failure. Often, there is not enough lubrication available in ultra low sulfur diesel fuel, causing the Bosch CP4 high-pressure injection pump to grind away metal inside and create no-start situations. A faulty injection pump can require a full replacement of the injection system, including the injectors, fuel lines, filters, and the fuel tank. To help lower the chances of a dead injection pump, the LML fuel filter should be regularly replaced.

Proper fuel system maintenance can help preserve your Duramax’s life. ProSource is your one-stop shop for a new LML lift pump, fuel lines, and more.

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