header says most of it

if i start my truck and it goes over 1100 RPM it will start and run good. but if it does not go over 1100 RPM on the start it will bog horribly and suffer severe power loss... ive had it in and out of the shop for this issue. changed plugs, wires, IAC, replaced battery, checked all fuses, checked fuel and vacume presure both when running good and poorly with the same result on both. so far im 1500$ into this problem and am hoping i can get some help. i would like to avoid the stealership if at all possible but thats my next step and i dont really have the money for it

 

Time for new fuel pump. $265.00 Autozone's price I had the same problem with mine. The only thing I did different than you is I also changed Pressure regulator. Also take the fuel rail off and give it a good cleaning. It's not that hard and you would be suprised how much crap comes out of it especially if you don't religously run fuel cleaner in it.

 

i had a similar issue this past weekend at the track. My battery died from my girl using the interior lights. Anyways, we jumped it and if when we let off the gas after that, the truck shut off. i held the gas for about 5 minutes holding it around 2000 rpms and it died as soon as i let off the gas. The factory volt gauge was reading great as the alternator was working. once we originally jumped it, it had enough charge to start on its own. after holding it at 2000rpms for about 20 minutes it would stay on. we left it on for the next 3 hours so it wouldnt be an issue.

it has a new pump. anybody have any suggestions?

 

bringing this thread back to the top as now it seems im not the only one having this issue