Ok I know I have shown pictures of in tank fuel pump,,,,but this is a differ ten case,,,,,F10 with N55 check engine light on,,,,faults low fuel pressure,,,,fuel pressure stuck were the faults ,,,,car had no power also ran rough and idle was low and also long crank,,,,,this repair is for only in tank fuel pump before 10/2013
Here I’m removing the old fuel pump,,,,there is a lot to remove or stuff into this small opening when removing or replacing the in tank fu pump.
The only visual different is the connector on the new fuel pump has a plastic connector ,,,,,not like the original fuel pump has the wires exposed,,,,now the reason for replacing the fuel pump is for the faults ,,,,what is happening is the fuel is foaming up inside the fuel tank,,,,after replacing the fuel pump I have to program the car and do a conversion on the fuel pressure,,,,the conversion changes the in tank fuel pump fuel pressure from 5.2 bar up to 5.8 bar.
-
Recent Comments
Madbean on N20 timing chain issue JC on Burnt valve bmwtechnician on N20 timing chain issue MadBean on N20 timing chain issue bmwtechnician on N55 eccentric shaft,valvetroni…
hello, i also have a 2014 BMW f10 N55. I am getting a gurggling noise when tank is below 1/2 but above 1/4. I had BMW Replace fuel pump in tank (cost me $700) but am still getting this noise (and its very noticable when parked and sometimes while driving). Noise goes away if tank is above 1/2. I dont know what else it could be. It is defenitely coming from fuel pump. Could it be the fuel foaming up in tank causing this noise? Should i replace pump with a upgraded higher flow fuel pump? What can i do to resolve this noise. It is 100% not normal fuel pump whine noise……
LikeLike
Is the noise coming from passengers side or from the drivers side,,,,,the fuel pump is on the passengers side,,,,on the drivers side there is a valve which could be making noise
LikeLike
Sound is coming from passenger side rear seat area. Even louder outside the car in that area. Had fuel pump replaced but noise is still there. I’m ready to give it. The noise is a gurgling noise ( sound it makes is hard to explain … but it sounds like someone walking on 6” of snow ) that’s the noise it makes. Only when tank is below half and above 1/4. Any idea what else it could be aside from fuel pump? I may just have to put sound absorber along rear seat and under car.
LikeLike
It sounds like the fuel pump is cavitation when the fuel is low ,,,,in the picture there are several fuel lines inside the fuel tank if they are not connected correctly or in the wrong place it can cause problem ,,,,,did you have the dealer look at the problem?,,,maybe a bad fuel pump it happens,,,maybe when the fuel gets low part of the fuel pump is not covered in fuel and starts to make that noise and sucking air,,,,maybe a bad fuel pump it happens.,,,,the fuel pump has a warranty if that’s the problem
LikeLike
replaced fuel pump and noise is still there. it is definitely something with the fuel tank. I may just replace the entire fuel tank. The noise annoys me tremendously. I am assuming the only mechanical motor inside the fuel tank that can make noise is the fuel pump iteslf. Maybe i will replace entire gas tank and upgrade to a high flow fuel pump and see if anything changes……it just bothers the heck out of me. Noise only happens when above 1/4 tank and below half tank of gas…at least somebody else is experiencing the exact same issue…..no way is this normal though. its too too loud to be normal…
http://www.bmw-sg.com/forums/threads/f10-low-pressure-fuel-pump-noise.58894/
LikeLike
Your problem might be the fuel tank but it’s hard to tell without hearing the noise,,,,but you said something about a high volume fuel pump which is not a good idea,,,,to much fuel to the fuel injector could cause a whole new problem.
LikeLike
Here is the similar sound my fuel pump makes if this helps. This is not my car but has exact same sound (my car does not have the whining noise this pump has. It has the other rattling noise in video ). I replaced pump but rattling noise is still there. Only loud when under 1/2 tank and above 1/4 tank.
LikeLike
Thanks for the video,,,,I have never heard this noise before,,,sounds like the fuel is starving once the fuel level get below 1/2 or 1/4 tank,,,,maybe a fuel line inside the fuel tank is bad or cracked and causing this noise
LikeLike
I’m going to pull rear seat out and then listen to it. Then gonna pull pump out completely and wire it up to 12v and listen to it.
I actually also tried sound deafening material under rear seat but it did not help at all. It’s just driving me nuts. May need to also get a fuel pressure gauge and make sure pressure sits steady and does not shake back n forth when pump makes noise.
So many variables….. but it’s so annoying this noise……drives me nuts. Thanks for your help though. Greatly appreciate ur time!!!!!
LikeLike
You should wait until the noise starts and see which fuel lines are not sitting in fuel,,,,then check those fuel lines to see if they are cracked or sucking air.
LikeLike
Very true. That’s exactly what I will do. Wait until it makes noise then take everything apart and investigate. Now I gotta but a fuel pump removal tool ($115). Uggggh and some driveway ramps to get under car ( I hear noise under car in fuel pump area ) Wheeeewweeee. Wish me luck!!!!!
LikeLike
Good luck,,,,take your time
LikeLike
Hello, seems i have another fueling problem with my 2014 BMW 535i xdrive. The Car sputters between 3k-5k rpm and also see misfires across random cylinders. No check engine light. I Replaced Plugs (stock gap) and Coils with no luck…still getting random misfires under load.
How can i troubleshoot this and what do i troubleshoot ?
Im assuming it is a fueling issue with injectors or a vavuum leak.
Here is the datalog below
http://www.bootmod3.net/log?id=5b914131d10b432d866b034f
LikeLike
It’s possible your in tank fuel pump is going bad,,,,you need someone to check the fuel pressure while driving and see if the fuel pressure and misfire are related
LikeLike
I have a 2011 335i N55 and my car shuts off upon start up and on occasion at a stop light but never while driving. I know it’s the LPFP and I want to do the LPFP upgrade but I’m unsure which pump to get. I know an upgraded LPFP may not even be necessary but I do run a little bit of e85 with my stage 2 MHD tune w/93 pump gas. I also have a downpipe too. Any recommendations would help. How long does it take to change this out and what price should I expect to pay if I take it to an Indy shop or Dealership (I know the latter will be higher priced).
Thanks in advance.
LikeLike
Expect about a 2hr charge to replace the in-tank fuel pump,,,,you could upgrade at that time.
LikeLike