Water pump replacement procedure 2005 2500 dodge with cummins diesel

Connect the fuel pump to direct 12 volt power. That checks the pump.

Then test the relay

https://www.google.com/search?q=2001+dodge+ram+2500+diesel+5.9+cummins+fuel+pump+relay+location

what cummins diesel engine model is in the dodge
cummins make a large range of engines all of which have various pump pressures depending on the injector set up
ask your question again and concentrate on the engine details

How to time a Volvo s40 2.4l engine

Hi,
if you have a Cummins diesel then it probably has a geardriven water pump. Dodge gas engines have a belt driven water pump, much cheaper. Check around for a re-man water pump if you have a Cummins installed. The prices vary enormously.

Good luck.

On a cummins turbo diesel the water pump replacement is quite simple i do believe. just have to remove the belt. The clutch fan, and pulley, then the water pump is right there i believe being held on by 4 bolts only and remove. Remember to place the wate pump o-ring on the water pump and hold in place with sort of adhesive just to make sure it doesn't slip out during installation or this will cause a leak. Once everything is installed then you will need to purge the cooling system of the air bubbles by letting it run and watching when the thermostat opens up. You can tell because the level will drop in the rad or over bottle, depending on what controls the fluid. Let it open two or three times, and go for test drive, all should be well...hope this helps

Just a suggestions but...

Check fuel filter.

Also add some fuel conditioner (e.g. HEAT for diesel) to get rid of any water that may be in your system.

the water pumps on these engines are some of the easiest to replace. just take the belt loose. unbolt the water pump and pull it out. scrape whatever pieces of the old gasket are on the block off. and install new water pump and gasket. the put the belt back on.
here is a better demonstration with pics:
http://www.cumminsforum.com/forum/3rd-gen-tech-articles/182382-water-pump-thermostat-replacement.html

Please clarify the "loosing power" does it lose power and shut down or does it loose power but will idle? Your Cummins is electronically controlled so oil condition is important, fuel leaks, oil leaks, leaks in the air ducting between the turbo and the intake, sensors, water in the fuel. Do you get an engine light when this trouble happens? Dodge uses a lift pump to carry fuel to the the injection pump, is it working?

Yes you can replace the seal.