I have a problem with my Dodge Ram, Whenever I start up cold(not that cold in Florida) The truck acts like it doesn't get fuel. I can put the pedal to the floor and no power, if I turn off the ignition while driving, and turn back on, it straightens out and have power. It's only until it warms up. Help. I have taken it everywhere, NO ONE HAS A CLUE. I have put in fuel filters,due to the dealership saying it runs rich till it warms up. Please help.

 

your lift pump is about to die. . .get that thing changed out before you have yourself a $2000 charge for a new VP44 injector pump.

 

mine does that too,and i have fass.i think the map sensor gets dirty and needs to be pulled and cleaned off then be reinstalled.i'm going to try it before i buy another sensor because when i pulled the old one it just looked like it needed to becleaned off.anyways lol

 

What exactly does a map sensor do?

A dirty one will make your truck run like crap ???

 

MAP. . .Manifold Air Pressure. it is just a pressure transducer that tells the computer how much boost the turbo is pushing.

 

So having a dirty map sensor will make your truck run like crap?
That kinda sucks ....

 

yea, it can clog up the sensor and report inproper boost numbers.

 

When I first start mine,, only when the engine is cold,, it sounds like it has a cam in it. I'm guessing it's just the programmer making it do that.

 

yea your lift pump is bad, because of the placement of it in the 98-02 24 valves the pump has to suck the fuel from the tank instead of pushing it to the injection pump. You need to have the new pump installed further back towards the fuel tank or you will have the same problem eventually.