Lift pump questions
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From: IA
Lift pump questions
Purchased a 02 2500 2wd automatic Vin 6 Cummins last year. Nice truck, used with a 5th wheel to tow a camper previously. Nice 'cause it kept it out of the Iowa salt!!! 80k miles and want to run a second fuel tank in the bed. May try to centirfuge used motor oil for "black diesel" later, but I want to run a separate tank instead of filling into the main tank as many do. Truck had the lift pump on the engine removed and a new sending unit with an in-tank pump installed by a Dodge dealer a couple of years ago. Not finding much info on how this was done or part #s. Has an aluminum block in place of the original Carter type pump on the engine. Don't see any wiring added to run the in-tank pump? Would that wining have been present in the truck already? I have always heard in the drag race community that the pumps will "push" fuel better than they will "pull" fuel, but I can't imagine that little pump in the tank is as good? The engine mounted pump would make switching tanks easier, as I would just need to plumb up a 6-port switching valve and wire up the sending units so they switched at the same time and draw from either tank. Truck is stock with no mods so I don't need additional fuel. I guess an additional pump by the auxiliary tank would be a plus if there was ever a problem with the other in tank pump. There are a LOT of high-output aftermarket pumps available, but the durability is more of a goal that more fuel volume. What are the pitfalls I should avoid?? Thanks for your help on this. Best to do it ONCE and the right way......
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