I have a 94 Dakota 4wd 3.9L when the motor is cold it starts up fine but after it's warmed up I have to push the gas pedal to the floor for it to start otherwise it will just crank & crank forever without starting.
Also if I'm in 2nd gear and I slow down until about 3 or 400 rpm it will sputter and want to stall unless i push the clutch in and rev it up.
Other than that it seems to run ok but my fuel mileage seems to have gone down but maybe that's just due to the winter fuel blend. or maybe not.

Does anyone have any ideas as to what may be causing my problem?
No check engine light on.

 

The V6 is terrible under 500RPM. There's a document out there by a Chrysler engineer about it, where they almost couldn't sell it with a manual behind it.

How many miles, have the injectors or sensors been serviced? The IAT, TPS, and IAC would all contribute to starting process.

 

About 3000 miles ago I replaced the fuel pump & cleaned the injectors also replaced plug wires, cap & pcv.
I don't want to start throwing parts at it so is there any test that I should do?
I checked for codes 7 it showed a 12, 17 & 55.
I cleared the codes by disconnecting the battery so I see if it shows any more.

 

I'll move this thread to the Gen 1 forum.

Good luck.