Loss of power no codes...

[Dodgydodge]

2004 dodge ram 1500 5.7 hemi, 545fre trans, short bed single cab... 222016 miles as of now..... truck is stalling once at a complete stop or even sometimes on the road, loss of power wont push past 3000 even in tow mode, at 45 mph the truck hesitates and slowly increases speed engine doesn't sound like its working harder, sputters at idle, i have replaced everything the truck was throwing codes for but its still ****** on performance pleeeeease help

 

[PoMansRam]

I've seen similar situations where it was a bad fuel pump.

 

[Dodgydodge]

I've seen similar situations where it was a bad fuel pump.

 

[Dodgydodge]

Fuel pump is good its been replaced and when i turn the key i hear it buzzing

 

[PoMansRam]

I hear ya, usually if you can hear them working they're good, but I'd still want to try to measure fuel pressure somehow.

 

[Karlsweg]

Have you replaced egr valve? Love data logging would help determine fuel trim also.

 

[Marley]

Without codes it could be hit or miss.

That said, I had issues very similar to what you describe and a simple map sensor corrected it......I did however have a code for it.