The fuel pump quit in the front tank of my 1996 F150, Brutus. I switched to the rear tank only to realize it had a bad leak. I should've replaced the front fuel pump but decided to get a new rear tank instead. OMG!!! That was NOT an easy thing to do!! Since putting the new rear tank in Brutus, ummmmm, stutters when I accelerate to shift & idles way to high & uses a lot more fuel than before. The fuel filter in the fuel rail has been replaced & I'm almost positive that I crossed all my t's & dotted all my i's installing the rear tank. I'm so frustrated. I cannot figure out what the problem is & I'm tired of the herky jerks every time I drive my truck. Please can someone point me in the right direction??

 

My guess is a crimped fuel line.
If your truck has a schrader valve on the fuel rail you should measure the pressure at idle and at around 4000 rpm. I do not know the spec but somewhere around 25-40 psig should be correct. Autoparts stores rent the fuel pressure tester. While you are at it, vent any air from the fuel rail, be careful and do this with a cold engine with the key in the On position but truck Off (not running).
Get your Diagnostic Trouble Codes read while you are at the autoparts store and report back

 

It's like it's flooding itself while I'm driving. I hafto hold the pedal to the floor to shut the fuel pump off to get it started. I don't hafto press the pedal at all to take off, just let the clutch out slowly.

 

How do you know? What tests have you done on it, and what were the results of each test?That's not much information about the truck. You should put ALL its details into your signature as this page explains:

(click this text)
Simply switching tanks shouldn't make a leak appear. Or do you mean you started filling the rear tank, and it leaked? From where? Did you find the leak point(s) when you removed it? Got pics?Did you also replace the pump & level sender in the tank?That's not likely related to the fuel pump, but have you measured fuel pressure at the rail with a gauge?

(click this text)
That's NOT related to the fuel pump.Are you sure it's not transferring into the front tank?There isn't one.By whom?Follow the links on this page:

(click this text)

 

There absolutely IS a filter on the fuel rail on the driver side and I changed it myself. I came here for suggestions not criticism. ANY vehicle problem is found by a process if elimination. I would appreciate if you didn't give your crappy no it all attitude response. Thank you.

 

There absolutely IS a filter on the fuel rail on the driver side and I changed it myself. I came here for suggestions not criticism. ANY vehicle problem is found by a process if elimination. I would appreciate if you didn't give your crappy no it all attitude response. Thank you.

 

Does your vehicle have a Fuel Injection Pressure Regulator? If it does there is a chance it got fouled with a piece of debris while you were working on the tank and filter. A pressure measurement on the fuel rail may show excessive pressure feeding too much fuel but I am not sure how that could be effecting a high idle condition.
Let us know what the pressure reading is.

 

But you're still not gonna post a pic of what you changed? I'll post a few, then:

(click this text)


(click this text)


(click this text)


(click this text)


Where do you see a filter near the fuel rail?You haven't gotten any criticism yet, but you seem to enjoy throwing them.NO, very few are. Lots of time, effort, & money are wasted using that process, but it's not a logical diagnostic process. It's random, and uneducated. If you want to learn the proper way to find problems on your truck, read the Ford PCED. It lays out each procedure for each problem step-by-step to diagnose the symptom changing parts and disturbing as LITTLE possible.So you're saying you'd prefer responses from people who know nothing? Or less than you? Good luck with that.