still breaking up

damon4192 · March 16th, 2010, 01:10 PM

hey guys i got a 2001 mustang gt and my car was breaking up so i was told to replace the fuel filter. its only breaking up in the high rpms. and when im punching it. i have no clue what it is. could it be plugs and wires? the only thing i can think of was that i was close to empty and on a hill and that the gas was flowing to one side of the tank and making it seem like there was no gas in it. its done it once on the highway before but i cant remember if i was on E or not. im lost. any help would be great, thanks

ModularSteed · March 16th, 2010, 01:53 PM

start with plugs and wires

limited · March 16th, 2010, 02:50 PM

01's don't have plug wires, but I would replace the plugs first

ModMustang97GT · March 16th, 2010, 07:52 PM

No plug wires? At all?

I know you have coil packs, but I was under the impression there were still wires.

Its most likely your wires or coil packs. Mine used to do the same thing. Only under load at higher RPM's right? If you rev it while you aren't moving, it doesn't do it? That is the electrical system.

damon4192 · March 16th, 2010, 10:18 PM

Originally Posted by ModMustang97GT

No plug wires? At all?

I know you have coil packs, but I was under the impression there were still wires.

Its most likely your wires or coil packs. Mine used to do the same thing. Only under load at higher RPM's right? If you rev it while you aren't moving, it doesn't do it? That is the electrical system.

yeah. it only when it is full throttle in the high rpms. starting to do it when i cruise now to.

99mustanggtman · March 16th, 2010, 11:39 PM

If the car was low on gas then the car might be surging just b/c there is no gas and 99-04 GTs do not have sumped tanks so the fuel sloshes around. Try filling the car with gas and then try to replicate the problem again. If you are still having a problem then I would do plugs, which are cheap, and also a fuel filter, which is also cheap. When doing the fuel filter make sure you buy the fuel line disconnect tool, you have to have it in order to remove the filter. Also check to make sure you don't have any water around the coil boots.

damon4192 · March 17th, 2010, 01:37 PM

Originally Posted by 99mustanggtman

If the car was low on gas then the car might be surging just b/c there is no gas and 99-04 GTs do not have sumped tanks so the fuel sloshes around. Try filling the car with gas and then try to replicate the problem again. If you are still having a problem then I would do plugs, which are cheap, and also a fuel filter, which is also cheap. When doing the fuel filter make sure you buy the fuel line disconnect tool, you have to have it in order to remove the filter. Also check to make sure you don't have any water around the coil boots.

hey thanks for the info i did fill the tank after and it worked. but i already replaced the fuel filter and that tool info would have deff came in handy being that i had to go buy one lol thanks tho and i am considering changing the coil packs next to be safe. thanks

99mustanggtman · March 17th, 2010, 03:00 PM

Sounds good man

March 16th, 2010, 01:10 PM	#1
damon4192 Regular 2001 mustang gt & 86 gt 9.84(86stang) Join Date: Feb 2010 Location: Hammond Posts: 245 iTrader: 0 reviews	still breaking up hey guys i got a 2001 mustang gt and my car was breaking up so i was told to replace the fuel filter. its only breaking up in the high rpms. and when im punching it. i have no clue what it is. could it be plugs and wires? the only thing i can think of was that i was close to empty and on a hill and that the gas was flowing to one side of the tank and making it seem like there was no gas in it. its done it once on the highway before but i cant remember if i was on E or not. im lost. any help would be great, thanks __________________ White Mustang Crew Member #8 2001 white mustang gt- exhaust, intake, 96k 1986 mustang-shootin for 9.8 this year, will have vids soon

March 16th, 2010, 02:50 PM	#3
limited Premium Member 99 limited edition vert Join Date: Mar 2007 Location: Tacoma,Washington Posts: 3,067 iTrader: 0 reviews	01's don't have plug wires, but I would replace the plugs first __________________ KB'd 446rwhp/451rwtq, Mustang Dyno http://www.youtube.com/watch?v=3ZDpQ0EEm1M Tuned by Joe at http://www.tricktuners.com

March 16th, 2010, 07:52 PM	#4
ModMustang97GT Hardcore Enthusiast 1997 Mustang GT Faster than an s4 Join Date: Aug 2007 Location: Seattle, WA Posts: 1,598 iTrader: 0 reviews	No plug wires? At all? I know you have coil packs, but I was under the impression there were still wires. Its most likely your wires or coil packs. Mine used to do the same thing. Only under load at higher RPM's right? If you rev it while you aren't moving, it doesn't do it? That is the electrical system. __________________ Aztec Gold 97GT. MM CC Plates, Panhard Bar, SFC's & Tower Brace Eibach Sway Bars H&R Race Springs/Bilstein Shocks MAC CAI, LT's, Catted H and Pro-Dumps KB Boost-a-Spark 04' PI Motor Author of The Official Suspension Guide

March 16th, 2010, 11:39 PM	#6
99mustanggtman Hardcore Enthusiast 1999 GT Join Date: Feb 2007 Location: Germantown, MD/ OSU Posts: 1,835 iTrader: 7 reviews	If the car was low on gas then the car might be surging just b/c there is no gas and 99-04 GTs do not have sumped tanks so the fuel sloshes around. Try filling the car with gas and then try to replicate the problem again. If you are still having a problem then I would do plugs, which are cheap, and also a fuel filter, which is also cheap. When doing the fuel filter make sure you buy the fuel line disconnect tool, you have to have it in order to remove the filter. Also check to make sure you don't have any water around the coil boots. __________________ Single 67mm turbo, ported pi heads, edelbrock vic jr. manifold w/HPP plenum, terminator shortblock, return fuel system... Goal 600+ rwhp.

March 17th, 2010, 03:00 PM	#8
99mustanggtman Hardcore Enthusiast 1999 GT Join Date: Feb 2007 Location: Germantown, MD/ OSU Posts: 1,835 iTrader: 7 reviews	Sounds good man __________________ Single 67mm turbo, ported pi heads, edelbrock vic jr. manifold w/HPP plenum, terminator shortblock, return fuel system... Goal 600+ rwhp.

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