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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 01-02-2014, 11:40 AM   #1
bhekithemba
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Join Date: Apr 2012
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fuel rail schrader valve

Hi people where is the fuel rail schrader valve located and what may be the problem when there is no fuel in it
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Old 01-02-2014, 12:40 PM   #2
jfoj
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Usually on the front of the fuel rail.

If there is no fuel in the fuel rail, engine will not run, fuel pump is likely dead.

Check the 2nd link in my signature.
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Solve your misfires, lean codes, rough idle - http://forum.e46fanatics.com/showthread.php?t=897616

Fuel pump failures - http://forum.e46fanatics.com/showthread.php?t=929501

Temp Info - http://forum.e46fanatics.com/showthread.php?t=964491

Hidden OBC Menu - Check Voltage, Temp, Fuel Level - http://forum.e46fanatics.com/showthread.php?t=239619

E46/E39 GM5 Door Lock Info - www.bmwgm5.com

Lower hose temp switch O-ring - BMW #13621743299
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Old 01-02-2014, 12:51 PM   #3
Willie00328I
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fuel rail schrader valve

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Most likely your fuel pump has gone bad. Did you notice a loss of power when you last drove it? That's what I noticed right before mine went out. The fuel pump is located under the rear seat on the passenger side. You should hear it come on for about 5 seconds when you turn the ignition on. If not search the forum for diagnos fuel pump before buying a new one. I went with a Siemens brand bought online. That is the same bmw used. Avoid the stealership! How many miles on your car?

Willie


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Old 05-11-2017, 03:55 PM   #4
WifE46
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I removed the Schrader valve to do my fuel pressure test. not sure I like the condition of the valve - what type should I use? - a/c pins and tire pins probably not going to fit or be the right material - where can I get one?
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Old 05-11-2017, 06:18 PM   #5
SSchwab
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The fuel rail and schraeder valve is under the left side (looking from inside the vehicle) cover over the manifold.
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Old 05-11-2017, 08:29 PM   #6
WifE46
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I've had my covers off for forever! LOL! I know where it is - just want to know if anyone has ever replaced the valve core in the fuel rail - and what did they use..
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Old 05-11-2017, 08:36 PM   #7
jfoj
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I would not use one for a tire valve stem, you have no idea what the soft part material is made of.

Most auto parts stores should have one for a fuel rail, I am sure you can get one from BMW or online. I would guess anything from a Chevy, Ford, VW, Mercedes should be about the same for fuel systems?

Most places that sell Nitros systems should also have fuel compatible valve inserts.
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Solve your misfires, lean codes, rough idle - http://forum.e46fanatics.com/showthread.php?t=897616

Fuel pump failures - http://forum.e46fanatics.com/showthread.php?t=929501

Temp Info - http://forum.e46fanatics.com/showthread.php?t=964491

Hidden OBC Menu - Check Voltage, Temp, Fuel Level - http://forum.e46fanatics.com/showthread.php?t=239619

E46/E39 GM5 Door Lock Info - www.bmwgm5.com

Lower hose temp switch O-ring - BMW #13621743299
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Old 05-11-2017, 09:13 PM   #8
WifE46
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I'll look some more but haven't seen anything so far... parts stores - I remember being offered tire valve cores for the a/c system... those guys are not always on point... also not sure the size is standard...
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Old 05-11-2017, 09:59 PM   #9
jfoj
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Not sure this will work, but likely will as most of the Schrader valves tend to be standardized.

https://www.amazon.com/ACDelco-17113...elco++17113667
__________________
Solve your misfires, lean codes, rough idle - http://forum.e46fanatics.com/showthread.php?t=897616

Fuel pump failures - http://forum.e46fanatics.com/showthread.php?t=929501

Temp Info - http://forum.e46fanatics.com/showthread.php?t=964491

Hidden OBC Menu - Check Voltage, Temp, Fuel Level - http://forum.e46fanatics.com/showthread.php?t=239619

E46/E39 GM5 Door Lock Info - www.bmwgm5.com

Lower hose temp switch O-ring - BMW #13621743299
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Old 05-12-2017, 09:53 PM   #10
WifE46
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Thanks - I ordered it. Hope it fits - there's so many out there for specific cars - I guess there's too much liability to just say one size fits all. Found a few sites where all the guys were saying they just use tire valve

cores because they're no longer using rubber to make the seals and they will work. Corvette guys... and others. Their fuel pressures are probably lower too.
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Old 05-16-2017, 12:21 PM   #11
WifE46
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Thanks! That valve core worked!
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Old 05-16-2017, 12:25 PM   #12
jfoj
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Thanks for the confirmation the part worked, probably best to have a core with better quality soft parts that will hold up to the heat and fuel over the long term.
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Solve your misfires, lean codes, rough idle - http://forum.e46fanatics.com/showthread.php?t=897616

Fuel pump failures - http://forum.e46fanatics.com/showthread.php?t=929501

Temp Info - http://forum.e46fanatics.com/showthread.php?t=964491

Hidden OBC Menu - Check Voltage, Temp, Fuel Level - http://forum.e46fanatics.com/showthread.php?t=239619

E46/E39 GM5 Door Lock Info - www.bmwgm5.com

Lower hose temp switch O-ring - BMW #13621743299
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