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While GM equipped this generation of Duramax engines with a Bosch CP4 fuel injection pump, it did not install a factory LML lift pump. This decision resulted in destructive consequences, as the high-pressure injection pump failed due to the amount of stress and sent metal contaminants through the fuel system, damaging other parts. +Read more
Adding an LML lift pump kit to the fuel system helps lessen the load on the injection pump, preventing catastrophic failure. An aftermarket lift pump also provides adequate fuel pressure to the injection pump while also filtering the fuel and removing air in the system.
Upgrade your fuel system and avoid failure with an LML Duramax lift pump from ProSource Diesel.
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