How can I drain my fuel tank?

M6BrokeMe · 11-15-2012, 04:31 PM

I suspect bad gas as the culprit to my off and on sputtering engine problem. I would like drain my gas tank and start over with a new batch.

Any ideas?
Thanks.
Pauly

Wolrab · 11-15-2012, 04:34 PM

Unless you have a reason to think you've put bad gas in it - more likely your fuel filter is clogged or the pump is on its way out. Or it's vacuum rather than fuel related. Find a post by jfoj starting something like "Save yourself over $200....". Follow the links in his signature.

Mango · 11-15-2012, 04:38 PM

That post Wolrab mentions is in my sig. Link #3. Trust me... you probably don't have bad gas.

I know a guy in New Jersey that does though. Pretty stinky if you ask me!

M6BrokeMe · 11-19-2012, 08:31 PM

Thanks for your replies. Yes. I agree not that I do not have bad gas. Just installed new feul pump and filter since I had bought them months ago for this 189K mile car, and never installed them. Still searching. Still runs poorly with Maf sensor unplugged, It is an intermittent sputtering after the engine warms up. sometimes it's just a barely noticeable rough idle and sometimes the engine runs super rough- like about 2 cylinders aren't firing. I sprayed around the vacuum lines with brake cleaner and no change in the rough idle. I'm starting to think I have a couple of failed coil packs. I got my codes read at AutoZone (Hey, at least it's free). Will amend this post later when I find them. I'll look below the sig. I have seen that sig with the link before and will check it out.
Pauly

jfoj · 11-19-2012, 09:35 PM

Read the first 2 links in my signature and the Hidden OBC Menu as well.

11-15-2012, 04:31 PM	#1
M6BrokeMe Registered User Join Date: Jan 2008 Location: Atlanta, GA Posts: 47 My Ride: 2001 330 ci, 1988 M6 View My Garage	How can I drain my fuel tank? I suspect bad gas as the culprit to my off and on sputtering engine problem. I would like drain my gas tank and start over with a new batch. Any ideas? Thanks. Pauly

11-15-2012, 04:34 PM	#2
Wolrab Registered Gadfly Join Date: Jan 2009 Location: Houston Posts: 483 My Ride: 330Ci MT, 545i SMG View My Garage	Unless you have a reason to think you've put bad gas in it - more likely your fuel filter is clogged or the pump is on its way out. Or it's vacuum rather than fuel related. Find a post by jfoj starting something like "Save yourself over $200....". Follow the links in his signature. __________________ Engineers do it with a torque wrench Last edited by Wolrab; 11-15-2012 at 04:35 PM.

11-19-2012, 08:31 PM	#4
M6BrokeMe Registered User Join Date: Jan 2008 Location: Atlanta, GA Posts: 47 My Ride: 2001 330 ci, 1988 M6 View My Garage	Thanks for your replies. Yes. I agree not that I do not have bad gas. Just installed new feul pump and filter since I had bought them months ago for this 189K mile car, and never installed them. Still searching. Still runs poorly with Maf sensor unplugged, It is an intermittent sputtering after the engine warms up. sometimes it's just a barely noticeable rough idle and sometimes the engine runs super rough- like about 2 cylinders aren't firing. I sprayed around the vacuum lines with brake cleaner and no change in the rough idle. I'm starting to think I have a couple of failed coil packs. I got my codes read at AutoZone (Hey, at least it's free). Will amend this post later when I find them. I'll look below the sig. I have seen that sig with the link before and will check it out. Pauly Last edited by M6BrokeMe; 11-19-2012 at 08:34 PM.

11-19-2012, 09:35 PM	#5
jfoj Registered User Join Date: Nov 2009 Location: Fairfax, VA USA Posts: 5,336 My Ride: '06 330CiC, '03 M5 View My Garage	Read the first 2 links in my signature and the Hidden OBC Menu as well. __________________ 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, Temps, Fuel Level - http://forum.e46fanatics.com/showthread.php?t=239619 E46/E39 GM5 Door Lock Info - www.bmwgm5.com Lower hose fan switch O-ring - BMW #13621743299

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11-15-2012, 04:38 PM	#3
Mango Registered User Join Date: Mar 2006 Location: Southern California Posts: 16,544 My Ride: M54B30 View My Garage	That post Wolrab mentions is in my sig. Link #3. Trust me... you probably don't have bad gas. I know a guy in New Jersey that does though. Pretty stinky if you ask me! __________________ Cooling \| Maintenance \| Vacuum \| Suspension \| Costs "Be a yardstick of quality. Some people aren't used to an environment where excellence is expected." -Steve Jobs