so my fuel pump went south in my truck last week (99% sure). 2005 f150 fx4, so its in the tank. planning on taking the bed off to do it as i have half a tank of gas (15g) and no place to drain. gonna start hitting the bolts for the bed with break free, little bit of research says those are a pain to get out the first time. Plan on either me picking it up and taking it off, or if i can get ahold of my buddies engine hoist and using that. filler neck is a few bolts and grounding strap then falls free, and there should be a quick disconnect underneath for the taillights. so it SHOULD be a million times easier than dropping the tank.
Backstory on Pump issue (so you can agree with pump, or if you think it may be something else): last week pulling into my gfs house, it felt like it was struggling and almost dieng in the turn, felt like i had a flat tire making the turn into the driveway. check engine light came on (steady) then went to the store, idle in drive at about 500ish RPM and had a chug-a-lug feel to it. very slow acceleration. trouble starting up when we tried to leave, loud grind from fuel tank area when put into start, when it did start, it slowy started up (meaning started, but at like 200rpm then slowly came to life). upon driving home, check engine light flashing at me (limp mode, means "find somewhere to park" lol) upon acceleration up a hill, then went back steady on flats. slow to turn and has a vibration, almost like turning on concrete with the hubs are locked, but not as bad.
i then replaced the fuel pump driver module and the fuel filter and test drove. still acting the same, but a ton stronger on start up. starts up like a champ now, but still has a bump in the idle in park, and when in gear the RPMs still drop and it chug-a-lugs. you can hear a faint whine when turning the power on (but not starting) from the fuel pump. but nowhere near as lound as the first time it whined right when it started.
my brother was supposed to bring his scan tools home from work (master mechanic at world toyota) and read the code the computer is throwing. but of course, he forgot the scan tool
. he started it and everything and said it does sound exacltly like the fuel pump went south. if the pump wasnt making a sound, i would be more concerned about throwing parts at it, but with the sound, im 99% sure its not a coil/plug/sensor issue.
now on to my question, parts stores and dealers are freaking stupid on prices for fuel pumps. so i was looking at ordering from ebay. should i just order the fuel pump, or the pump and the entire sender unit? looks easier just to replace the entire sender unit.
just the pump http://www.ebay.com/itm/NEW-FUEL-PU...iter_Display:5.4L&hash=item58a284db31&vxp=mtr
pump with sending unit http://www.ebay.com/itm/New-Electri...iter_Display:5.4L&hash=item35c62e5ba6&vxp=mtr
the only other thing i can find to check is there is a wiring harness connection underneath the truck near the fuel filter on the fram that apperently the ground wire for the fuel pump control module can rot away. be checking that tonight. all i have to do is run a jumper wire to see if it is that. but with the whine/grind the pump is making, im doubtful of that.
But and personal experiance / advise on the issue is highly appreaciated!!
Backstory on Pump issue (so you can agree with pump, or if you think it may be something else): last week pulling into my gfs house, it felt like it was struggling and almost dieng in the turn, felt like i had a flat tire making the turn into the driveway. check engine light came on (steady) then went to the store, idle in drive at about 500ish RPM and had a chug-a-lug feel to it. very slow acceleration. trouble starting up when we tried to leave, loud grind from fuel tank area when put into start, when it did start, it slowy started up (meaning started, but at like 200rpm then slowly came to life). upon driving home, check engine light flashing at me (limp mode, means "find somewhere to park" lol) upon acceleration up a hill, then went back steady on flats. slow to turn and has a vibration, almost like turning on concrete with the hubs are locked, but not as bad.
i then replaced the fuel pump driver module and the fuel filter and test drove. still acting the same, but a ton stronger on start up. starts up like a champ now, but still has a bump in the idle in park, and when in gear the RPMs still drop and it chug-a-lugs. you can hear a faint whine when turning the power on (but not starting) from the fuel pump. but nowhere near as lound as the first time it whined right when it started.
my brother was supposed to bring his scan tools home from work (master mechanic at world toyota) and read the code the computer is throwing. but of course, he forgot the scan tool
. he started it and everything and said it does sound exacltly like the fuel pump went south. if the pump wasnt making a sound, i would be more concerned about throwing parts at it, but with the sound, im 99% sure its not a coil/plug/sensor issue.now on to my question, parts stores and dealers are freaking stupid on prices for fuel pumps. so i was looking at ordering from ebay. should i just order the fuel pump, or the pump and the entire sender unit? looks easier just to replace the entire sender unit.
just the pump http://www.ebay.com/itm/NEW-FUEL-PU...iter_Display:5.4L&hash=item58a284db31&vxp=mtr
pump with sending unit http://www.ebay.com/itm/New-Electri...iter_Display:5.4L&hash=item35c62e5ba6&vxp=mtr
the only other thing i can find to check is there is a wiring harness connection underneath the truck near the fuel filter on the fram that apperently the ground wire for the fuel pump control module can rot away. be checking that tonight. all i have to do is run a jumper wire to see if it is that. but with the whine/grind the pump is making, im doubtful of that.
But and personal experiance / advise on the issue is highly appreaciated!!
surges bad when trying to get out my neighboorhood (hill). dont trust it.
