Does any one know if the lift pump on the 2003 and 2004 is the same as the 1998.5 to 2002?

 

Any one know ?

 

Yeah, they were all using the same lift pump up to the point that they switched over to the in-tank pump.

Cummins part number #3990105. There were earlier revisions, but that was the last revision used on a Dodge. Cummins now has a new campaign pump for fire/bus applications that has an internal bypass, but it was never used on the Dodge application (although it can be).

 

The liftpumps used on the 03'-04' common rail engines are different. The part number for the 03'-04' liftpump is 4089602 and they mount directly to the fuel filter housing where as the 98.5'-02' liftpumps mount on the block.

http://www.hoeslidiesel.com/2003LIFTPUMP.htm

 

I just bought my first Diesel. 2001 ext cab, 4x4 long bed.
I'm hearing all this stuff about the "lift pump". I want a simple answer on what to replace it with that will pretty much never go bad, or at least i don't have to worry about! Anybody? Don't mean to hijack the topic, sorry.

 

Fass II. 4 year, 400K mile warranty.

Click on the "fass fuel pump" link at the top of the page.

http://www.dieselpp.com/

 

FASS can cost you some bones, no doubt its one way of fixing it. If I was putting out more power it would be an attractive option.

By some miracle, my lift pump is still doing ok, at least as of 75,000 miles (I'm at 80,200 right now). I really have to get a dedicated gauge, right now I only have the mechanical test gauge.

Anyway, here's a link that talks about the improved pump:

https://www.dieseltruckresource.com/...ad.php?t=95407

I think, for me, a gauge and the improved pump are the way to go.

 

Well from what our customers are telling us, the FASS II pump is the way to go, or at least seriously look. It will give you up to 18 psi at idle and wont go lower than 11-12 psi WOT. There are several other pump fixes that do and can work, but for the time and money and especially the worry "will my lift pump stop working", we have found the FASS is the answer.

Look into the Pump only system. It is affordable and will give you the fuel system performance your looking for.

 

I just need a good diesel mech. in portland or gresham OR. that knows about all this stuff and will do it for me. I don't mind paying somebody to do it, i'm over getting dirty, greesy and frustrated! Anybody know of someone in Oregon, city of Portland or Gresham? I can't seem to find any!

 

Take your stock lift pump off the engine and mount it below the fuel tank on the frame as close to the tank as you can. Use low pressure hydraulic hose to make the connection back to the fuel filter. With even one gallon in the tank the lift pump will have fuel ABOVE it to PUSH to the engine.

 

Everyone on the West side of Portland takes their Dodge diesels to Dick Duyck in Hillsboro, an auto trans and Dodge diesel expert.

 

Can't find him online or in the phone book?