I got this truck and was told it had a new crank sensor put in a few months ago and that it needed a new fuel pump. The tuck cuts out on me some days and others it runs fine. I put a lot of parts on this truck and it has not change a thing. here is a list of all the parts and what my truck does...
fuel pump (entire module with pressure reg)
cap and rotor
plugs and wires
cleaned the injectors
oil and filter
down stream o2 sensor
ABS speed sensor ( speedometer still works whenever it wants to)
speed sensor on the bottom of tranny
AND IT STILL CUTS OUT!!!!!
The truck almost acts like its vapor locking or something. It will do it when I pass someone or give lots of throttle or do it when I am going like 15mph down a hill. There is a clicking or (sparking) soud made when the engine cuts out. I have no more ideas and any help is much appriciated. I have heard it might be a throttle sesor or map sensor or maybe a bad ground or voltage reg. PLEASE HELP!!!!!!!!!!!!!!!!!!!!