No power! Help!!!

Ok so a couple months ago , i stopped at a red light and when i went to take off my truck had no power wat so ever...... i mean it wud barley take off ...... well after i parked and it sit for a few hours it was fine and now couple months later its back! it falls on its face when u get in it .... and if u stay in it long enuff with it runnin like this its like it goes into neutral .... what could be wrong?

had the codes pulled and all it throws is a egr valve code

 

yea but its been fine for a couple months now ...... i changed the little plastic thing walago i cant remeber the name of it , it has 2 hoses and a plug on it ...... it didnt fix it ..... the egr valve is a B!tch to get to cuz its against the firewall ..... if only i had a BL

 

Could be a clogged EGR like bama said. i know when mine went out on the 97 it idled really weird like it was cammed or something

 

my cat might be the problem just got done readin a 10 page thread on another forum from a guy with a v10 and it was his cat was clogged ..... my rattles like a mf so i bet thats my prob

 

Like it goes into neutral?

Explain.

 

Hmmm I didn't realize the Egr would do this. I think I will replace mine soon. Cause I'm starting to get symptoms

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if you dont get a real motorcraft dpfe it can fail again. I had those same symptons and it does it only every 3 or 4 months but hasnt done it in a good while after i replaced dpfe. Like my truck would rev by itself and fall on its face and miss and spit and sputter.