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General E46 Forum
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Old 03-04-2012, 03:14 PM   #1
JJR4884
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Full tank of gas, bad fuel pump.... yup

Tried syphoning a few gallons of fuel out today, but failed miserably... is there a guard at the bottom of the fuel hose? I even attempted to use my oil extractor at that point, and still nothing... could tell it wasn't submerged in gas

So, I need to replace my fuel pump tomorrow. What are my options to remove some fuel? I have between 3/4 and a full tank () Should I have the car towed to the shop, put it on a lift, then drain a few gallons from the fuel lines under the car?

WTF, i really wanted this pump to be a quick fix, now i have to worry about goddamn gas going everywhere.... Any suggestions would be great, thanks guys
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Old 03-04-2012, 03:15 PM   #2
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Tried syphoning a few gallons of fuel out today, but failed miserably... is there a guard at the bottom of the fuel hose? I even attempted to use my oil extractor at that point, and still nothing... could tell it wasn't submerged in gas

So, I need to replace my fuel pump tomorrow. What are my options to remove some fuel? I have between 3/4 and a full tank () Should I have the car towed to the shop, put it on a lift, then drain a few gallons from the fuel lines under the car?

WTF, i really wanted this pump to be a quick fix, now i have to worry about goddamn gas going everywhere.... Any suggestions would be great, thanks guys

pay someone to do it for you.
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Old 03-04-2012, 03:30 PM   #3
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to what, siphon gas out? i don't plan on paying anyone for the install...this is a relatively easy job... but i don't need friggin gas going everywhere...
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Old 03-04-2012, 03:31 PM   #4
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hmm.. what if i jack the front passenger side of the car up and put that on a jack stand... wonder if that will make the fuel pump at a high enough point to not spill over
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Old 03-04-2012, 03:38 PM   #5
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I had my fuel pump go out 5 miles after I filled it. I just let the access fuel run down the back of the tank, the first time you pull forward it will spill off. I know it's not good practice. But it is a ton easier than trying to siphon some out. Just get the underbody washed, you should be fine.
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Old 03-04-2012, 03:41 PM   #6
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how much spilled out? was it THAT bad?
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Old 03-04-2012, 03:43 PM   #7
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Less than a gallon. But i definitely had to let the car air out when I was done.
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Old 03-04-2012, 03:45 PM   #8
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well if that was 5 miles after you filled it, i already probably went through 2-3 gallons of gas if i'm between 3/4 and full. We'll see... i guess i'm just gonna say F it and deal with the gas if it does spill out
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Old 03-04-2012, 04:28 PM   #9
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If you only have 3/4 tank of fuel, you should have no problem with the level in the tank when you pull the pump other than having a harder time getting the fuel line out without pull some fuel with it.

I have swapped E39 pumps with close to 3/4 tank and it not too bad. No fuel spills out.

Suggest you get some old cardboard boxes to flatten and maybe some large trash bags to wrap sender in before you drag it out of the car so you do not spill gasoline in the car on the carpet or under the seat.
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Old 03-04-2012, 04:32 PM   #10
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I haven't done it myself, but I'm pretty sure that after you open it up under the seat, before you remove it entirely, you ought to be able to get a hose in the tank and siphon out from there directly.

If that doesn't work, just get a cheap plastic tarp for back there and a 5 gallon bucket to put the pump in.

Only other thing I can think to do is ignite the tank, but that might not be such a good idea, unless you have a vert!

Anyway, siphon to a bucket outside of the car on the ground...might not be a fast siphon, but it should work.

HTH.

Oh, Russo, I've read many of your posts over the years, so hope you understand when I say that I was just joking about igniting it!
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Old 03-04-2012, 04:46 PM   #11
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Sounds like it could be your coil packs I have an e46 m3 and your symptoms sound like the same as mine before it finally went out, you should hook it up to an obt 2 reader to make sure if it reads a misfire On one of your cylinders then the coil pack is your problem and they need to be replaced.

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Old 03-04-2012, 04:47 PM   #12
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Sorry I responded to the wrong thread stupid me my bad LOL

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Old 03-04-2012, 05:24 PM   #13
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It's not too bad. Mine went out 4 miles after I filled up, in the middle of winter. I ended up doing it in the garage with both garage doors open and fans blowing air through the garage. I lost probably a half gallon. If you already have 20+ miles on that tank and take it slow along with jacking up the passenger side, you probably won't loose a drop. As was said before, any gas lost goes down the back of the tank and onto the ground. Just make sure you tape off the underside of the seat between the hole for the pump and the passenger foot well were you'll likely have a 5 gallon bucket waiting for the dripping pump.
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Old 03-04-2012, 06:23 PM   #14
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Thanks for the replies all.... gonna just go for it tomorrow then. The car is outside so ventilation will be fine, and its away from the house. Shouldn't take more than 10 min, I have the back seat already apart, just need to unclamp that little hose and I should be good to go

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Old 03-04-2012, 06:58 PM   #15
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Thanks for the replies all.... gonna just go for it tomorrow then. The car is outside so ventilation will be fine, and its away from the house. Shouldn't take more than 10 min, I have the back seat already apart, just need to unclamp that little hose and I should be good to go

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Old 03-04-2012, 07:40 PM   #16
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Are you sure it's the pump ? I was worried my fuel pump died on me but it turned out it was a fuse
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Old 03-04-2012, 07:45 PM   #17
JJR4884
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already checked the fuse, which is fine. the pump is 100% not turning on, so when i get my new pump tomorrow, i'll be able to turn it on quick quick before actually installing it
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Old 03-04-2012, 08:12 PM   #18
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BMW Fuel tanks are nearly impossible to siphon fuel from. The hoses are also shaped in a tight S bend.
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Old 03-05-2012, 11:21 AM   #19
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Can't you just get under the car and pull one of the fuel filter lines off and let it drain for awhile??

Either way, if it were me I would just be careful with it and pull the pump out.
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Old 03-05-2012, 01:08 PM   #20
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Sounds like you already got this advice, but just to confirm. Don't worry about it just pull it and let the gas spill over. It will leak down the outsides of the tank, not into the car or anything. I did this in a parking lot of a hotel, a decent amount spilled out but just make sure no one is smoking nearby or anything. And if you do it in a garage let it air out a while before you go back in.

EDIT: Oh, and just for safety's sake. DON'T DO THIS! IF YOU DO I AM NOT RESPONSIBLE IF YOUR CAR BLOWS UP! etc etc lol
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