Have you looked at any of the plugs? Are they wet? If so....

Yank the fuel pump relay, stomp the gas pedal to the floor, and hold it there. Crank the engine for a while. It should, at some point, sputter some trying to burn off the remaining gas....

Got a scanner? See what temp the PCM thinks the engine is.

 

So it's back at the shop. We pulled the cat right out and it still doesn't want to run so I guess that theory is out. The cat also looks to be in good shape, at least that's what the mechanic said.

We ended up calling the local Dodge dealer and they're thinking it could the the ECM. I guess their thought is it's malfunctioning and causing the injectors to provide way to much fuel. Something about not calculating the RPM correctly. That being said they were not 100% sure, they had trucks that needed ECMs before but they didn't act exactly like this. The other factor that plays into this theory is that I had a CEL & and flashing CEL while driving it home and the next morning the light was out and he couldn't pull any codes.

Does that make sense? I see piles of used ECMs on eBay, is it "plug and play" or is there more to it then that?

Responding to the post above, yes the plugs are wet. The last time it ran was after the plugs were pulled and the whole thing was dried out real well. You can hardly turn the engine over with out smelling gas. It's really acting like a stuck/bad needle on a carb, way to much fuel.

K

 

If the 02 was not replace with an NTK that is a problem.

 

At the risk of sounding like an idiot I'm not sure what you are saying here.

The front O2 sensor was replaced.

K

 

If you have a bosch O2 sensor in there, our trucks don't particularly care for them. That being said, it won't make any difference in a cold engine.

With ignition off, check injector grounds, and see if any are shorted. (should be an open circuit at each ground with ignition off.)

If you stomp the pedal to the floor, and hold it there while cranking, does it make any difference?

 

This is true.

 

Holding the peddle down while cranking really didn't help. I think it would "pop" a bit more but it wouldn't fire.

K

 

Sounds like it's seriously flooded..... Yank the fuel pump relay, and crank it over some, pedal to the metal. See if it will clear out.

 

Well, we did clear it out once but it just went back to it's old self.

Not sure what's going on.

K

 

Got a scanner that can read data? See what temp the PCM thinks the engine is.