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Old 04-15-2009, 12:31 AM   #1
bobby digital
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f connector on intake

I started my car and took off that vacuum line from the f connector ( one that goes to the fuel regulator on the gas filter) that is on the intake boot, but there was no vacuum, (from connector side) should this be so? there was indeed a vacuum from the other vacuum hose at the top part of the f connector, i am thinking, if there is no vacuum then how would it work the pressure regulator on the filter.

I am trying to find out why car acts up for a few seconds after re-fuelling and there after everything is fine. it all started when i put the vacuum hose from the pressure regulator to the oil seperator by error as i saw the hose hanging and wondered where it came from, then i re-fuelled and had the acting up so i went and remove the hose from the seperator and put back the cap that was on it before (i had taken off the capping to put on the hose) then i found that the hose should be on the f connector's small port.

Any ideas??
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Old 04-15-2009, 01:43 AM   #2
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pics?
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Old 04-15-2009, 06:27 AM   #3
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I'm kinda confused at what you did and what exactly the question is. But I can say that looking at the parts diagrams on www.realoem.com can be really useful along with a little reasoning and common sense.
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Old 04-15-2009, 09:43 AM   #4
bobby digital
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Originally Posted by mkodama View Post
I'm kinda confused at what you did and what exactly the question is. But I can say that looking at the parts diagrams on www.realoem.com can be really useful along with a little reasoning and common sense.
Well first, it is strange that this f connector can not be found on realoem or from the etk (mine nor at the dealer) but it exist, it is a little vacuum connection shaped like the letter F, so it has three ports, the lower of which sticks into the intake boot, that second from top is connected to the fuel pressure regulator on the fuel filter and the upper from somewhere else (not sure where).
What i did was to take the end that should be placed on the second from top position and attached it to a vacuum point on the oil seperator, (the hose was just hanging as the section of the f it attaches to was broken off) that was very wrong.

The question is, should there be a vacuum at the point on the f connector where the hose to regulator is attached? i had no vacuum there, but i had vacuum at the tip of the hose that is attached to the top port of the F. if i take the F entirely out of the boot and check for vacuum there is very little.
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Old 04-15-2009, 12:01 PM   #5
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What kind of problem do you have now that the hose is back to where it belongs?

As for the mistake that you hooked the fuel regulator line to the oil separator line the worse case your fuel filter is clogged up. Maybe all you need is to replace the fuel filter but do this only if you have some issue.
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Old 04-16-2009, 12:23 AM   #6
bobby digital
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What kind of problem do you have now that the hose is back to where it belongs?

As for the mistake that you hooked the fuel regulator line to the oil separator line the worse case your fuel filter is clogged up. Maybe all you need is to replace the fuel filter but do this only if you have some issue.
I changed the fuel filter and still car acts up after re-fuelling, behaves like it is starving of fuel for like five seconds then all is well until time to re-fuel again.
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Old 10-05-2009, 12:33 AM   #7
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Bumped this because my F connector that he was asking about broke and am trying to find a name or part number for it to replace it...anyone?
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Old 10-05-2009, 12:40 AM   #8
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Part # 13327503677
Description: Support
Found under Vacuum Control in the Engine section
http://www.realoem.com/bmw/showparts...11&fg=45&hl=16





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Old 10-05-2009, 01:41 AM   #9
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Awesome, thanks. I was wondering if it was that part but the diagram didn't have the second port on there so I wasn't sure. Now I just need to overnight the thing here...

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Originally Posted by mkodama View Post
Part # 13327503677
Description: Support
Found under Vacuum Control in the Engine section
http://www.realoem.com/bmw/showparts...11&fg=45&hl=16





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Old 12-29-2010, 11:48 AM   #10
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^ thank you, broke that lil SOB and couldn't find it either...
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