Loss of throttle driving and shutoff at idle

[rock3ralex]

In the last few days I've experienced some bazaar things. While driving on the freeway, I'll lose acceleration and the throttle won't respond. I'll end up flooring it and the engine will come back and respond. Then today while idling at a stoplight, my engine rumbled, hit check engine and shut off. I was able to immediately restart it with no light or signs that anything was wrong.

Any ideas? I started googling the issue. Fuel pump or fuse box show up but don't make any sense in terms of correlation.

Thanks.

 

[bedrck46]

makes perfect sense. The fuel pump relay is located on the circuit board in the fuse box. there has been many post here on the forum about this issue. It is possible that the relay is starting to fail and would need to be repaired or replaced. read the following links,

http://www.expeditionforum.com/f41/05-expedition-cranks-but-doesnt-start-21903/#post175219

http://www.expeditionforum.com/f41/po430-code-non-start-issue-22423/#post180859

Also when was the last time the fuel filter was changed?

 

[mindgame]

Could also be a vacuum leak on a hose near the PCV valve... I had that issue once..