Eventually, I want to upgrade the performance my two Libby CRDs. I am concerned that, without a lift pump, the demand for fuel from the injection pump will outstrip the ability of that same pump to suck it from the fuel tank. Is a lift pump a recommended upgrade for owners wishing for a performance upgrade, (GDE, et al)?
What is the best lift pump available for the Liberty CRD? In line, like the Kennedy pump, or a fuel pump that is mounted in the tank? I have to drop my fuel tank to install a suction hose for the Webasto heater anyway, so complications regarding installation are not an issue for me. I just want the best pump available. I understand - perhaps incorrectly - that a lift pump from a Cummins equipped H-D pickup will fit right in, and there is little or no modifications even required for the wiring.
I am currently having no issues with air in the fuel, (I have experienced no real drops in power, other than the times the CEL has thrown a P0299 code; and I believe that is an unrelated problem), and I am witnessing no fuel leaks, so I am hesitant to spend the money to change the fuel filter head for the new improved one from Chrysler. Can I get an upgraded fuel filter head under warranty or a recall? I had heard that there were engine bay fires caused by an air-in-fuel condition and the fuel heater element being on. Does this not make the upgrade to the new fuel filter head an automatic recall?
Any feedback from our more educated Members in these matters is GREATLY appreciated. Ask me about CRD thermostats; that I know. This area of expertise is brand new to me...
And yes, I did read the noob guide - it is excellent, (thanks, Sir Sam); but the devil is in the details here. I am willing to spend the money for the best equipment available; that is why I am spending good money developing the new thermostat. I want the best lift pump available for this application IF I need one. I will also probably spring for a new fuel filter head - again, IF I need one - but in this case I feel Chrysler should be giving us all updated fuel filter heads.