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General E46 Forum
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Old 05-14-2015, 05:04 PM   #1
tonyisok
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Car Stalled and Will Not Start

I have been having some weird vibration with accelerating from 40-60mph. I thought it was tires/wheels; multiple balancing rotations however vibration doesn't shift. Begin to think its something with d/s, because when I take my foot off the accelerator the vibration disappears and when I step on the gas pedal the vibration returns.....But this AM after driving on hwy to work at 80-85mph for better than an hour, when I exited hwy car hesitated and bucked but was able to continue drive for about 1-mile....car stalled and I have been unable to restart car....When I turn key to on position I usually hear a hum from fuel pump, but now complete silence....There is less than a 1/4 tank of gas; but gas nevertheless....car started a couple of times and only able to drive 15-ft....I think I lost my fuel pump, which is weird because I think the fuel pump is only 3-5yrs old...I don't know if all of these symptoms are related or coincidental?

Appreciate your suggestions and thanks in advance

Last edited by tonyisok; 05-15-2015 at 07:43 AM.
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Old 05-14-2015, 05:21 PM   #2
tonyisok
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Thanks for reminding me of BMA...good folks over there.
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Old 05-15-2015, 11:57 AM   #3
tonyisok
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Opened cap on fuel rail to release fuel pressure; discounted harness on fuel pump; turned ignition to #2(on) and tested for power at the harness (power confirmed with Ohm meter); reconnected harness and turned ignition to #2 again and listed for powering of fuel pump...not a peep from the pump...
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Old 05-15-2015, 12:02 PM   #4
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I had an issue where my car died on me when I was under a 1/4 tank of gas. The fuel level sender was bad and it thought the car had no gas left. Filled it up and it started up just fine. I ended up replacing that and the fuel pump since I was over 110k miles on the car.
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Old 05-15-2015, 03:59 PM   #5
tonyisok
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I'm thinking this is a bit different as there seems to be no electrical activity from fuel pump...power to pump, but cannot hear pump prime....
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Old 05-15-2015, 04:20 PM   #6
hitbyastick
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Bad pump is bad. Sometimes they fail early, especially if they ain't OE.
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Old 05-16-2015, 07:27 AM   #7
tonyisok
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Well....I got my hands on a good light tester and the harness to the pump had power; and this is this is the caveat; you have about a 3.5 sec window from the time you turn the ignition to pos #2 to to check the harness terminals before power to the harness is switched off. The same is true for when the harness is reconnected to fuel the pump, to see if fuel pump powers up.....Anyway the fuel pump did power up (I was surprised).

There is a scene in the movie "Sling Blade", where the guys are trying to figure out why the lawn mower will not start....Then one of them says Carl come over and look at this; someone comments that Carl can fix anything.....that;s when Carl pours gas into the mower and then it starts up....Then one of the guys says that Carl can fix anything....

I poured gas into the tank and the car started right up....Problem is Fuel Pump sending unit (bmw p/n #16116768788). Looks like "SolidJake" was right.

Now on to figure out what that vibration thing is when accelerating 40mph....guess looking at d/s next

Last edited by tonyisok; 05-16-2015 at 09:17 AM.
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Old 05-16-2015, 07:55 AM   #8
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Make sure to change the pump and relay as well.
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Old 05-16-2015, 02:29 PM   #9
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Just read the 2nd link below in my signature.

Your car needs a new fuel pump and filter. Just replace them and move on.

For the short term do not let the tank go below 1/2 tank and be prepared to be stranded until you replace the fuel pump.

Running out of fuel at 1/4 tank is more often due to a soft fuel pump that is low on pressure and volume than the sensor.
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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 05-19-2015, 12:40 PM   #10
tonyisok
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When I check the instrument cluster all the gauges cycle through without problem including fuel gauges...



I used the hidden function to test fuel level as well...I filled the car up and the reading were 240330....I think this is in liters. 16.5 or so gals should be 62/63 liters....



I just checked the fuel readings again; gas gauge showing about 3/4-tank and reading 169268 - 6.0

0437 - 6.1

0423 - 6.2
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