My Mustang Shuts Off After I Get Off Of The Highway Whats Goin On???

GTSHAKER · June 9th, 2008, 03:48 AM

My 04 mustang gt shuts off after i get off of the highway. the rpms will go under 1000 jump back up to 1000 then die. i am able to start it right back up and it seems to run fine minus the low rpm's while ideling, the car has longtubes and the cats are off i think the 02 sensors were takein off as well. i just had a tune up and only use premium gas. i cant think of what the problem would be since i take great care of my car, any ideas?

bullitt5576 · June 9th, 2008, 03:52 AM

did you check to see if your air filter fell off?

GTSHAKER · June 9th, 2008, 03:56 AM

no i didnt does that cause it?ill check in the mornin but when it shuts off my battery light will come on then i just start it back up and my radio turns off so im thinkin electrical its not gettin hot or anything

bullitt5576 · June 9th, 2008, 03:59 AM

check both your terminal connections for corrosion and to see if they are both tight, if your air filter came off it can do all sorts of messed up things, so check that

GTSHAKER · June 9th, 2008, 04:01 AM

ok thanks appreciate it. i ran out and checked one of my terminals is kinda corrodid but not bad. my air filter is still on tho

GTSHAKER · June 9th, 2008, 04:20 AM

could it maybe be the altenator or bad battery?

FoxHoss · June 9th, 2008, 07:25 AM

is it an auto or a standard? may not apply to our cars but i dunno, ive got a stick. i know on a lot of cars i saw when i worked in a small shop, they would come in with a similar problem and it was because the converter lockup solenoid was going bad. again i dunno if our cars use em, but thats what it sounds like to me

GTSHAKER · June 9th, 2008, 03:26 PM

its a standard

B0B · June 9th, 2008, 03:33 PM

with your car running, try disconnecting the plug on your idle control valve. if the car tries to die when you unplug it, your problem is elsewhere. but if you unplug the connector and there is no change then your IAC valve is likely the culprit. the surging idle kind of gave me the idea that it could be a bad valve.

stanginit · June 9th, 2008, 03:43 PM

Originally Posted by GTSHAKER

no i didnt does that cause it?ill check in the mornin but when it shuts off my battery light will come on then i just start it back up and my radio turns off so im thinkin electrical its not gettin hot or anything

Your battery light will be on....this is normal when the car is not running.

GTSHAKER · June 10th, 2008, 04:12 PM

my mechanic buddy thinks it could be doing it cuz my o2 sensors are off

zinc02GT · June 10th, 2008, 04:45 PM

if its shutting off randomly it could be the fuel filter has gone bad. I had that problem, changed mine out and problem was fixed

TheUNZippee! · June 10th, 2008, 04:45 PM

Could also be a bad fuel pump.

93hatch · June 10th, 2008, 05:37 PM

no o2 sensors at all?? doesnt your car run like complete shit?

GTSHAKER · June 10th, 2008, 05:54 PM

yea actually it runs pretty good this is the first mech problem i have ever had with it idk why they took out my o2s when they put on my longtubes but im hopein maybe the diablo predetor will fix it so i can just tell the ecu the o2 sensors are off and turn off the egr valve but ill check out my fuel filter as well, i just got it changed about 4000 miles ago and only use premium but ill check it thanks

June 9th, 2008, 03:48 AM	#1
GTSHAKER Newbie 2004 MUSTANG GT low 14's Join Date: Jun 2008 Location: LAS VEGAS, NV Posts: 8 iTrader: 0 reviews	My Mustang Shuts Off After I Get Off Of The Highway Whats Goin On??? My 04 mustang gt shuts off after i get off of the highway. the rpms will go under 1000 jump back up to 1000 then die. i am able to start it right back up and it seems to run fine minus the low rpm's while ideling, the car has longtubes and the cats are off i think the 02 sensors were takein off as well. i just had a tune up and only use premium gas. i cant think of what the problem would be since i take great care of my car, any ideas?

June 9th, 2008, 03:52 AM	#2
bullitt5576 Regular 2001 Bullitt Join Date: May 2008 Location: Oklahoma City Posts: 415 iTrader: 0 reviews	did you check to see if your air filter fell off? __________________ MM NEW EDGE COBRA CREW #2

June 9th, 2008, 03:59 AM	#4
bullitt5576 Regular 2001 Bullitt Join Date: May 2008 Location: Oklahoma City Posts: 415 iTrader: 0 reviews	check both your terminal connections for corrosion and to see if they are both tight, if your air filter came off it can do all sorts of messed up things, so check that __________________ MM NEW EDGE COBRA CREW #2

June 9th, 2008, 07:25 AM	#7
FoxHoss Enthusiast 02' GT Join Date: Oct 2007 Location: Brooklyn, CT Posts: 902 iTrader: 0 reviews	is it an auto or a standard? may not apply to our cars but i dunno, ive got a stick. i know on a lot of cars i saw when i worked in a small shop, they would come in with a similar problem and it was because the converter lockup solenoid was going bad. again i dunno if our cars use em, but thats what it sounds like to me __________________ Nitrous is like a hot girl with an STD... you wanna hit it, but your afraid of the consequences 02' GT ~ Twin Screwed 469hp/493tq

June 9th, 2008, 03:33 PM	#9
B0B Boost gets you laid 2001 Mustang GT 12.93@113.7 (on the 18's) Join Date: Dec 2006 Location: Milton, WA Posts: 2,601 iTrader: 2 reviews	with your car running, try disconnecting the plug on your idle control valve. if the car tries to die when you unplug it, your problem is elsewhere. but if you unplug the connector and there is no change then your IAC valve is likely the culprit. the surging idle kind of gave me the idea that it could be a bad valve. __________________ '01 GT. Just a couple Bolt-ons. 0rwhp 0rwtq. Epic Turbo build in progress 2003 Rubicon (wheelin rig) 2008 Silverado 4x4 (towin rig/road queen) 2009 KTM 450 XC-W (Brap Brap!)

June 9th, 2008, 03:56 AM	#3
GTSHAKER Newbie 2004 MUSTANG GT low 14's Join Date: Jun 2008 Location: LAS VEGAS, NV Posts: 8 iTrader: 0 reviews	no i didnt does that cause it?ill check in the mornin but when it shuts off my battery light will come on then i just start it back up and my radio turns off so im thinkin electrical its not gettin hot or anything

June 9th, 2008, 04:01 AM	#5
GTSHAKER Newbie 2004 MUSTANG GT low 14's Join Date: Jun 2008 Location: LAS VEGAS, NV Posts: 8 iTrader: 0 reviews	ok thanks appreciate it. i ran out and checked one of my terminals is kinda corrodid but not bad. my air filter is still on tho

June 9th, 2008, 04:20 AM	#6
GTSHAKER Newbie 2004 MUSTANG GT low 14's Join Date: Jun 2008 Location: LAS VEGAS, NV Posts: 8 iTrader: 0 reviews	could it maybe be the altenator or bad battery?

June 9th, 2008, 03:26 PM	#8
GTSHAKER Newbie 2004 MUSTANG GT low 14's Join Date: Jun 2008 Location: LAS VEGAS, NV Posts: 8 iTrader: 0 reviews	its a standard

June 10th, 2008, 04:12 PM	#11
GTSHAKER Newbie 2004 MUSTANG GT low 14's Join Date: Jun 2008 Location: LAS VEGAS, NV Posts: 8 iTrader: 0 reviews	my mechanic buddy thinks it could be doing it cuz my o2 sensors are off

June 10th, 2008, 04:45 PM	#12
zinc02GT HUGE RED HEADED DUDE W/FIVE-OH 2011 Mustang GT 12.1 @ 116 Join Date: Dec 2007 Location: Alabama Posts: 5,350 iTrader: 1 reviews	if its shutting off randomly it could be the fuel filter has gone bad. I had that problem, changed mine out and problem was fixed __________________ Mods in garage. New mods, new track times soon.

June 10th, 2008, 04:45 PM	#13
TheUNZippee! Moderator Join Date: Jan 2007 Location: Canada Posts: 61,816 Blog Entries: 1 iTrader: 0 reviews	Could also be a bad fuel pump. __________________

June 10th, 2008, 05:37 PM	#14
93hatch Banned 1992 Lx 11.39@119.24 Join Date: Jan 2008 Location: Az Posts: 11,665 iTrader: 0 reviews	no o2 sensors at all?? doesnt your car run like complete shit? __________________ [QUOTE=93mustank;2577445]We speed tested my right arm for quickness in shifts... So he could design the cam for proper shift recovery.[/QUOTE]

June 10th, 2008, 05:54 PM	#15
GTSHAKER Newbie 2004 MUSTANG GT low 14's Join Date: Jun 2008 Location: LAS VEGAS, NV Posts: 8 iTrader: 0 reviews	yea actually it runs pretty good this is the first mech problem i have ever had with it idk why they took out my o2s when they put on my longtubes but im hopein maybe the diablo predetor will fix it so i can just tell the ecu the o2 sensors are off and turn off the egr valve but ill check out my fuel filter as well, i just got it changed about 4000 miles ago and only use premium but ill check it thanks

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