I am very new at this computer and so please be patient with me on all this. I appreciate any help that I can get on my 2002 Automatic Dodge Diesel Cummings 2002 truck. I got a new lift pump on it(2nd one I've just put on it. I hit the 30second prestart and when it starts, you can riv it up right then-But--then it will drop down to about 1800RPMS and start missing... What does anyone think the problem is here... Appreciate any help-- I was going to try and go to your chat room--but didn't know how to..... 
