car spills gas @ every fill up? - 2003-04 Mach 1 Registry Owners Club

DSG2003Mach1 · 03-06-2017, 03:07 PM

every **** time (Ive tried a few different stations) I get gas the car overflows the fill spout. By the time the pump auto stops fuel ends up coming out of the spout.

Ive dropped the tank a few times for fuel system stuff, is there possible a vent hose somewhere or something thats not back on or on wrong? I watched it and its definitely coming out where you put the nozzle in, not down at the tank.

sooooo tired of fuel issues with this damned thing (had lots of issues with the fragola fittings)

TKat13 · 03-06-2017, 05:09 PM

I suspect your vent tube got kinked.

DSG2003Mach1 · 03-06-2017, 05:21 PM

ya, I figure it has to be something like that, I'll get under there sooner or later but thought Id post incase there was something oddball to look for

03Shadow Grey · 03-06-2017, 09:31 PM

Don't rule out dirt dobber's, can fill up a hole pretty fast.
Apparently every time my girlfriends car would sit, he would get back to work
untill it was almost closed.I found the issue and cleaned it out but you would think the gas fumes would keep it away.Maybe the carbon filter canister was doing its job, I don't know.

Procharged2k3 · 03-10-2017, 09:51 AM

Mine does this sometimes too.

01yellerCobra · 03-10-2017, 10:39 AM

Did you knock out the anti-siphon valve one of the times you dropped the tank?

DSG2003Mach1 · 03-10-2017, 11:04 AM

Quote:

Originally Posted by 01yellerCobra

Did you knock out the anti-siphon valve one of the times you dropped the tank?

is that the piece that clips to the end of fill tube (in the tank) and has the check ball or whatever it is? I did knock it off once and reattached it...whats the easiest way to check that, try to put a siphon hose in there?

01yellerCobra · 03-12-2017, 02:20 PM

Quote:

Originally Posted by DSG2003Mach1

is that the piece that clips to the end of fill tube (in the tank) and has the check ball or whatever it is? I did knock it off once and reattached it...whats the easiest way to check that, try to put a siphon hose in there?

Yeah. I knocked the one off the filler neck on my 01. I'd occasionally have issues with the gas spilling out after that. Part of it depended on the gas pump.

That would probably be easiest. As long as you know how long the filler tube is.

03-06-2017, 03:07 PM	#1
DSG2003Mach1 700 HP Mach Join Date: Nov 2003 Location: Orlando, FL Posts: 8,384	car spills gas @ every fill up? every **** time (Ive tried a few different stations) I get gas the car overflows the fill spout. By the time the pump auto stops fuel ends up coming out of the spout. Ive dropped the tank a few times for fuel system stuff, is there possible a vent hose somewhere or something thats not back on or on wrong? I watched it and its definitely coming out where you put the nozzle in, not down at the tank. sooooo tired of fuel issues with this damned thing (had lots of issues with the fragola fittings) __________________ 03 dsg mach1 - MPR built 9.5:1 motor, D1, cams, ported intake, full exhaust, magnum t56, built rear, E85 etc... '12 F150 FX2 Supercrew with Ecoboost daily beater

03-06-2017, 05:09 PM	#2
TKat13 Mach-T Join Date: Jun 2004 Location: DFW Posts: 2,865	Re: car spills gas @ every fill up? I suspect your vent tube got kinked. __________________ Darrell Black '04 Mach 1 Track Times (bone-stock w/drs):60 ft - 1.90 \| 1/8 - 8.67 (100 shot,E85,4:10s,Street tire):60 ft - 1.67 \| 1/8 - 7.88 New build - 750rwhp; not track tested (yet) Mods: Build Log Paint&Body Tuned by Manny @ HPP

03-06-2017, 05:21 PM	#3
DSG2003Mach1 700 HP Mach Join Date: Nov 2003 Location: Orlando, FL Posts: 8,384	Re: car spills gas @ every fill up? ya, I figure it has to be something like that, I'll get under there sooner or later but thought Id post incase there was something oddball to look for __________________ 03 dsg mach1 - MPR built 9.5:1 motor, D1, cams, ported intake, full exhaust, magnum t56, built rear, E85 etc... '12 F150 FX2 Supercrew with Ecoboost daily beater

03-06-2017, 09:31 PM	#4
03Shadow Grey Registered User Join Date: Feb 2016 Location: Theodore Alabama Posts: 282	Re: car spills gas @ every fill up? Don't rule out dirt dobber's, can fill up a hole pretty fast. Apparently every time my girlfriends car would sit, he would get back to work untill it was almost closed.I found the issue and cleaned it out but you would think the gas fumes would keep it away.Maybe the carbon filter canister was doing its job, I don't know.

03-10-2017, 09:51 AM	#5
Procharged2k3 Registered User Join Date: Jun 2015 Location: St. Louis, MO Posts: 279	Re: car spills gas @ every fill up? Mine does this sometimes too.

03-10-2017, 10:39 AM	#6
01yellerCobra Registered User Join Date: Jan 2013 Location: San Diego, CA Posts: 1,104	Did you knock out the anti-siphon valve one of the times you dropped the tank? __________________ New Ride: 2004 Mystichrome Cobra-Accufab SBTB and plenum, Steeda 2.8" upper, Bassani X, Borla Stingers, Mcleod RXT, MGW shifter, Level 5 halfshafts, chrome FR500's, Stiffler's FIT system and DS safety loop, GT pumps, BA3000, tuned by owner

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