How does the Duramax fuel system work?
The Duramax uses a common-rail system, where high fuel pressure is always available to an electronically controlled fuel injector and it is the injector itself that controls the fuel that is delivered to the combustion chamber.
What kind of fuel does a Duramax truck use?
The AFE 42-14011 DFS780 Fuel System with Full-Time Operation for your 2001-2010 GM 6.6L Duramax offers you a complete fuel system solution to replacing the factory lift pump in your Duramax pickup. The fuel in your truck contains contaminants, water and air/vapor which reduces power and can cause damage to your injectors.
Where is the fuel pump located in a Duramax Diesel?
The mechanical h.p. pump located in the engine valley is the only pump, it has the duel function of pulling fuel from all the way from the tank and thru the filter and cooling the ficm to the h.p. section of the pump. This means the entire fuel line, tank to engine, is under suction YOU WONT SEE A LEAK , you might see a wet stain.
Why is my Duramax diesel engine not starting?
I have seen more leaks causing no starts, loss of prime and low fuel rail pressure codes from poor fitting aftermarket fuel filters use Delco only. Remember when dealing with power loss and fuel pressure issues the duramax has no in- tank or frame mount fuel pump pushing fuel to the engine.
How much fuel does a Duramax lift pump use?
Since #2 diesel weighs about 7 pounds/gallon, which gives us about 19.5 HP/gallon/hr. The DFS780 will flow enough fuel (at rated pressure) to support over 2000 HP.
The AFE 42-14011 DFS780 Fuel System with Full-Time Operation for your 2001-2010 GM 6.6L Duramax offers you a complete fuel system solution to replacing the factory lift pump in your Duramax pickup. The fuel in your truck contains contaminants, water and air/vapor which reduces power and can cause damage to your injectors.
The mechanical h.p. pump located in the engine valley is the only pump, it has the duel function of pulling fuel from all the way from the tank and thru the filter and cooling the ficm to the h.p. section of the pump. This means the entire fuel line, tank to engine, is under suction YOU WONT SEE A LEAK , you might see a wet stain.
I have seen more leaks causing no starts, loss of prime and low fuel rail pressure codes from poor fitting aftermarket fuel filters use Delco only. Remember when dealing with power loss and fuel pressure issues the duramax has no in- tank or frame mount fuel pump pushing fuel to the engine.
What happens when a Duramax CP4 pump fails?
CLICK HERE to purchase our LML CP4 High Pressure Fuel Pump Failure Kit The 2011-2016 Duramax suffers from a high pressure fuel pump issue unique to this year range. Failure of this CP4 pump is usually catastrophic, causing instant contamination of the entire fuel system with metal particulates.