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-   -   possible fuel pump? (https://xoutpost.com/bmw-sav-forums/x5-e53-forum/107683-possible-fuel-pump.html)

Overboost 01-23-2018 03:00 PM
Quote:
Originally Posted by stackz (Post 1127061)
I have a seven month old and my other car is a 96 ranger and it's not legal to have a rear facing child seat in a front seat with a side airbag even disabled in my state. I was under the gun and went to the parts warehouse local to me and bought the whole assembly. $170. But it's done and my wife doesn't have to take leave from work and we dont have carousel cars now. I'm ok with this....and I'm returning the $95 fuel filter and ordering one online for cheaper. It probably needs done. Oh and the harbor freight fuel pressure kit sucks haha. After I swapped the pump and had it running it was showing no pressure. It was the adapter itself I had it cranked all the way down and nothing. I wanted to tent a kit from O'Reilly's but theirs was broken and warranty exchange. Go figure. Anyone have a good fuel system test kit that actually works?
Where did you get the entire assembly for $170? Link?

stackz 01-23-2018 03:14 PM
Its a southern parts chain called parks automotive. I will warn you their website is....lacking...in friendly. But the big warehouse is about two miles from where I work and twelve miles from my house so I jumped in my backup Ford ranger shit runner and got what I needdd

andrewwynn 01-23-2018 07:54 PM
Fuel filter is really lifetime. The pressure can be measured under the hood pretty easy. I'm surprised even HF kit didn't work.

I would check the siphon jet side before you discover that it's leaking and you "run out of gas" with 1/4 tank.




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stackz 01-24-2018 09:32 AM
Quote:
Originally Posted by andrewwynn (Post 1127072)
I'm surprised even HF kit didn't work.
yeah it was weird. its actually the adapter for the fuel rail that is badly designed...or my fuel rail schraeder valve is too short I dont know. its screws onto the rail completely but the cross bar that contacts and opens the schraeder valve in the fuel rail doesnt contact it enough to open it.

upallnight 01-24-2018 11:30 AM
I got a genuine BMW complete fuel pump for $20.00 bucks at the local Pick N Pull. Took me just 15 minutes to remove it from the BMW. If I don't use it, I'll just put it on eBay and double or triple my investment.

stackz 01-24-2018 12:27 PM
that was my original plan but my upull only had two x5's and one the entire tank was gone and the other they had already ripped out the pump assembly and taken the pump itself. oh well.

also, after thinking on it a little I see why the harbor freight fuel pressure kit doesnt work. the shraeder valve is recessed in the fuel rail so there's no way the adapter can physically push it open when screwed down. looks like the simply thing to do is just unscrew the shraeder valve and put the adapter on that way since it has its own shraeder valve.

stackz 01-24-2018 05:43 PM
Ok yeah that was the issue. Pulled the shraeder valve and hooked up the gauge and hit the key, got 48lb. Cranked it and got 50lb constant for running 2 minutes. Cut it off and it held 45lb for 10 minutes. I'm good with that as I know most fuel injection systems run 35-60 psi depending on setup and whatever the for is set at.

andrewwynn 01-25-2018 12:24 AM
It's supposed to be 50#. You do not need to replace the filter. Did you check the jet pump o-ring?


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upallnight 01-25-2018 08:42 AM
Quote:
Originally Posted by andrewwynn (Post 1127197)
It's supposed to be 50#. You do not need to replace the filter. Did you check the jet pump o-ring?


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Quote:
Originally Posted by stackz (Post 1127161)
Ok yeah that was the issue. Pulled the shraeder valve and hooked up the gauge and hit the key, got 48lb. Cranked it and got 50lb constant for running 2 minutes. Cut it off and it held 45lb for 10 minutes. I'm good with that as I know most fuel injection systems run 35-60 psi depending on setup and whatever the for is set at.
Aren't these two numbers the same? #50=50lb.

X53Jay4.8is 01-25-2018 09:15 AM
Quote:
Originally Posted by upallnight (Post 1127137)
I got a genuine BMW complete fuel pump for $20.00 bucks at the local Pick N Pull. Took me just 15 minutes to remove it from the BMW. If I don't use it, I'll just put it on eBay and double or triple my investment.
A used fuel pump in your vehicle? Why would you trust this not knowing how old it is and the history behind it? Just buy a new one and be done with it.


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