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  1. #1
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    Throttle body duct vacuum hose

    I was working on my car tonight and removed the large duct that connects to the throttle body. When I did that a vacuum tube toward the bottom snapped. I searched realoem.com but could not locate the part as photographed. Does anyone know what this tube is for or part number?



    David'06 BMW X5 4.8is Sapphire Black/Black mfg 10/2005 58k
    '01 BMW 540i Sport Jet Black/Black mfg 11/2000 90k
    '00 Jeep Wrangler Sport White/Tan cloth 82k
    '06 BMW Z3 Rider Green/Tan Seat (daughters push car)


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    Yes | No

    That line goes to the fuel pressure regulator (m)

    It's part of the fuel filter that is under the car.
    Line #13, the open end in the lower left hand corner of the link below is the line in you pic.

    http://www.realoem.com/bmw/showparts...11&hg=13&fg=10

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    Re: That line goes to the fuel pressure regulator (m)

    Would not having this hose connected cause a constant shaking when running?

    I started my car the first time tonight after reinstalling everything for the VCG and upper timing cover gasket replacement. The only thing I need is the "Throttle body duct vacuum hose.

    I had no lights/warning showing on the dash and do not have a way to check codes it may be throwing.

    Thanks,

    David'06 BMW X5 4.8is Sapphire Black/Black mfg 10/2005 58k
    '01 BMW 540i Sport Jet Black/Black mfg 11/2000 90k
    '00 Jeep Wrangler Sport White/Tan cloth 82k
    '06 BMW Z3 Rider Green/Tan Seat (daughters push car)

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    Yes | No

    Not being connected shouldn't cause a shake (m)

    Being disconnected only allows a very small unmetered amount of air into the engine that the O2 sensors should be able to compensate for.
    This line that goes to the fuel pressure regulator only slightly adjusts the base pressure from idle to wide open throttle.
    Once I forgot to connect mine, after a few days of driving I saw it was loose. The car ran fine with no codes.
    Are you sure all of the connectors for all of the injectors are plugged in all the way? Although there should be a code if one isn't connected. Maybe a loose ground connection for the coils?

  5. #5
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    Re: Not being connected shouldn't cause a shake (m)

    I did have a hard time seating the box atop the fuel injectors on the passenger side but thought after the fourth time pressing down I heard them snap into place. I check that side again as well as the coil packs and grounding. For the ground straps I have the braided on the stud first and then the brown ground from the coil wire atop that. Sound right?

    After the powder coat guy had dipped the VCG's I do have rust on the coil studs. Could that be causing a bad ground?

    Thanks again too!

    David'06 BMW X5 4.8is Sapphire Black/Black mfg 10/2005 58k
    '01 BMW 540i Sport Jet Black/Black mfg 11/2000 90k
    '00 Jeep Wrangler Sport White/Tan cloth 82k
    '06 BMW Z3 Rider Green/Tan Seat (daughters push car)

  6. #6
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    As long as the brown wire and the braided wire (m)

    connectors are touching each other and the nut is tight that isn't your problem. Make sure the other end of the braided wire that connects to the head is tight.
    What are you going to do with the tools you bought when you did the gaskets on the front of the engine? I'd be interested in some of them if you want to sell them. Let me know.

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    Re: As long as the brown wire and the braided wire (m)

    I'll probably keep the tools since I also have a '06 X5 4.8 that I think will use the same tools.

    The valve cover tool was the incorrect set they sent me after a six weeks wait so I had to cut off part toward the front of the VCG to clear the timing chain/sprocket to seat correctly. Worked like a charm but now I have four pieces I need to keep together so I know which goes where.

    For all your help and advice I'm happy to buy you the 32mm thin-wall deep well socket. That is a tool worth having.

    I'll get it on order today and we can work out details for shipping to you.

    David'06 BMW X5 4.8is Sapphire Black/Black mfg 10/2005 58k
    '01 BMW 540i Sport Jet Black/Black mfg 11/2000 90k
    '00 Jeep Wrangler Sport White/Tan cloth 82k
    '06 BMW Z3 Rider Green/Tan Seat (daughters push car)

  8. #8
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    Thanks 4the offer but U really don't need 2do that






    "Drive It Like You Stole It, A Sickness for Quickness"
    The Bottle Rocket "King of Spray" 2 Stage Nitrous Oxide
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    NOS Progressive 2 Stage Controller with port injection
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  9. #9
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    Re:okay so this is what I found

    I pulled off the passenger side cover to look at the coils and found that I did not reconnect the braided ground wire. So I fixed that and all else looked good. So naturally I thought I had the cat in the bag.

    NOPE! Still shook upon start up. I numbered the coils when I removed them to do the work but may have counted 1-4 starting from front.

    Does it matter where the coils reinstalled? That's the only other thing I can think of.

    I didn't replace my spark plugs because the car ran fantastic before I started my work.

    Thanks,

    David'06 BMW X5 4.8is Sapphire Black/Black mfg 10/2005 58k
    '01 BMW 540i Sport Jet Black/Black mfg 11/2000 90k
    '00 Jeep Wrangler Sport White/Tan cloth 82k
    '06 BMW Z3 Rider Green/Tan Seat (daughters push car)

  10. #10
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    Coil location really shouldn't matter. (m)

    Are you sure the injectors are all connected? It the CEL on?
    If the misfire is really bad the DME will shut off a fuel injector. To get it back on you will need to clear the CEL.
    Don't know if that's your problem or not.

  11. #11
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    Re: Coil location really shouldn't matter. (m)

    What is the CEL? I do not have any lights on the dash and all looks normal other than the shaking. When I accelerate it's as if it wants to stall.

    David'06 BMW X5 4.8is Sapphire Black/Black mfg 10/2005 58k
    '01 BMW 540i Sport Jet Black/Black mfg 11/2000 90k
    '00 Jeep Wrangler Sport White/Tan cloth 82k
    '06 BMW Z3 Rider Green/Tan Seat (daughters push car)

  12. #12
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    Check Engine Light also known as Service Eng Soon(

    If it's running that bad you should have a light. Are you sure you didn't forget to connect all the wires and hoses?

  13. #13
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    Re: Check Engine Light also known as Service Eng Soon(

    Sorry should have realized what that was. Just for trial and error I removed the MAF sensor/connector to how it would run differently and and ran worse until I plugged it back in. That is when I got the service engine soon light to come on.

    I think you're correct about not having a good connection on the injectors. I just removed the electric box and was able to pull up on the forward half toward the front of the engine. I'll remove the whole box and check my clips to be sure they're not bent or disfigured.

    David'06 BMW X5 4.8is Sapphire Black/Black mfg 10/2005 58k
    '01 BMW 540i Sport Jet Black/Black mfg 11/2000 90k
    '00 Jeep Wrangler Sport White/Tan cloth 82k
    '06 BMW Z3 Rider Green/Tan Seat (daughters push car)

  14. #14
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    Finally all repaired...

    So I removed the electrical box and check all clips and the first three seemed to be bent beyond what was usable.

    I tried to buy some new ones but they're not sold separately from the electrical box. So I came home and bent them back the best I could using needle nose pliers. That seems to work and I verified each and every one was making good contact to its respective injector.

    Finally started the car and it's as smooth as can be.

    Now I'm only waiting on the vacuum hose that I broke. Rasmussen said it was special order and should be in by Wednesday.

    I'll drive this car during this week and this weekend will be replacing both outer tie rods and both thrust arms. Well as long as my ball joint separator comes in this week.

    Thank you again to all.

    David'06 BMW X5 4.8is Sapphire Black/Black mfg 10/2005 58k
    '01 BMW 540i Sport Jet Black/Black mfg 11/2000 90k
    '00 Jeep Wrangler Sport White/Tan cloth 82k
    '06 BMW Z3 Rider Green/Tan Seat (daughters push car)

  15. #15
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    Success finally!






    "Drive It Like You Stole It, A Sickness for Quickness"
    The Bottle Rocket "King of Spray" 2 Stage Nitrous Oxide
    Dare to be different and stand out among the crowd of me-to-cars!
    No guts, no glory! Tire smoke, not traction control!
    Zionsville all aluminum radiator to replace the 3 leak prone Nissens Radiators!

    NOS Progressive 2 Stage Controller with port injection
    Snow's Performance Methanol/Water Injection
    Dinan downloads, VAC Under Drive Pulleys
    Dinan Carbon Fiber CAI
    Dinan Front Strut Bar
    Electric Cooling Fan w/PWM controller
    NGK Iridium Plugs
    DDE Enhanced Angel Eyes, Smoked Lenses
    Koni FSD's/H&R Springs, BAV Brass Caliper Bushings
    Eisenmann Race Exhaust (from H8-Rain's car)
    ///M5 3.15 LSD
    ///M5 Sway Bars, Front & Rear
    Energy Suspension Polyurethane Sway Bar Bushings
    ///M5 Gauge Cluster Rings ///M5 Lip Spoiler
    ///M5 Mirrors and Switches
    Leather Z weighted shift knob (thanks H8-Rain)
    Rogue “Octane” Short Shift kit w/WSR
    Rogue Tranny Mounts
    StopTech Brake Lines Front & Rear
    Axxis Deluxe Plus pads Front & Rear
    Staggered M Parallel 66, Xenons
    Modified CDV, UGDO
    Euro Storage Tray (thanks Zombywolf)
    Redline in Diff and Tranny
    Passport 8500 X50, Escort ZR3 Laser Jammer
    G-Tech/Competition Pro Data Logger
    Auto Enginuity OBD-II Scan Tool
    25% Tint, X-Pel, LoJack
    PIAA Driving Lights
    35W Xenon backup bulbs
    BMW CCA Member Boston Chapter

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