Here is my problem:

- truck stalls randomly cold or hot, can restart from 1 min to 10 minutes later.
- when it stalls at highway speed, sometimes I can pump the gas and it will run again, rpm's go to 0, sounds like it is still running when I pump the gas but it is a very muffled rev up sound.

this truck runs like a dream when this problem does not occur. purchased this year back in February. fuel consumpion is a bit high. btw: got her for $1500!

New parts since Feb 2011: fuel pump, o2 sensor, IAC on throttle body, plugs, wires, dist. cap, rotor, oil, and all filters.

key on codes since I got the truck, hence why I replaced some of the above parts: 12, 21, 25 and in the last 2 weeks code 27

Any help is appreciated!

 

Are you getting intermittent spark when it stalls? I am leaning toward the Ceank Position Sensor.

 

honestly, i dont know. when it stall I can crank it over but it just wont start. then it will start, it could be 1 try or 10 tries.

sometimes lately when it stalls and then starts it wont idle correctly for a few minutes, rpms just hit zero and dies. it will restart every time when it does that but continues to stall without some peddle assistance.

it is very puzzling, i like doing my own repair work but this one just has me by the short ones.

 

Well then, confirm spark, and check for vacuum leaks (for the bogging at idle).

 

will check for spark and hoses look really good.