Hi I need some help!! I have a 2004 1500 Ram.The problem is that the pick up suddenly doesn't accelerate and the engine ends switching off,sometimes it tries to come back but it can't do it. A year back the fuel pump was change because there was no fuel sent to the motor. I change the throttle sensor,air filter,check all ignition coils and are ok,change spark plugs and lately I take it to the mechanic and he told me that the computer needs to be changed,I did it and it stays the same.Please some help!!.

 

What motor? Miles? Condition when fails hot cold wet dry need more to start with

 

Hi!! it is a 4.7L and its millage 138,495. The problem starts as soon as the vehicle gets hot or approximately 15 or 20 minutes after start.

 

Welcome to the site. Im guessing you fired or changed mechanics right?

Are you running hot at all? Losing any coolant or oil? Is your check engine light on?

 

Is it overheating?

 

it is not loosing oil or coolant,and the check engine has only turn on two times(when the failure is repeating fast),the first time
the codes were P0171 and P0174 and a faulty oxygen sensor was replace but that didn't fix anything and the second one was the one that the mechanic says it was the computer.

 

Computer could use a flash since youve throw some parts at it already.... but thats a long shot

 

Bad / loose ground on the motor? It's something easy to check and often looked over.