So Basically I got a Prob.

97_4.6L_Stang · February 9th, 2007, 04:17 AM

Ive been answering some questions for some of yall. so now maybe you can help me lol. I think im having a fuel problem. it started with this; i start my car when its cold outside and it tries to die the first crank. then after that its fine. Now its trying to die everytime im at idle. even after ive driven it a while. i have to keep my foot on the gas to keep the rpms up. any help would be greatly appreciated. My IAC has been changed and I do have a dirty air filter if that will help with figuring out the prob. could it be EGR? Thanks

Jucostud · February 9th, 2007, 03:14 PM

I don't know what your problem is, but my uncles car did the exact same thing. He never did figure out what the problem, but his engine ended up dieing on him not long afterwards. My advice is take it to a shop as soon as possible!

98GT4.6 · February 9th, 2007, 04:12 PM

I had the same prob with mine. Turned out it was the IAC. How long ago was the it changed? Could possibly be faulty. My buddies car is also doing the same thing, isnt the IAC. We're working on it this weekend. If we figure it out Ill let you know what we did and maybe you have the same prob. ( or vise versa)

97_4.6L_Stang · February 9th, 2007, 04:16 PM

thanks man that would be great. im workin on mine tomorrow also. im gonna go to ford. my buddy works there so ill let you know if i find out anything. hopefully it wont be a hard fix. i hopin for an EGR. im pretty sure if the EGR goes bad and gets stuck open it causes a rough idle and causes the car to die.

Casper98GT · February 9th, 2007, 05:18 PM

could be a number of things. Check fuel too. Could have a bad regulator. But the Iac usually goes and cause stalling issues. Alot of stuff you should check before asking though. Vaccum leaks? Clogged air fitler, or just a little dirty ? Also have you replaced the fuel filter any time n the past?

1998_svt_cobra · February 9th, 2007, 10:26 PM

What's an IAC?

Boomer · February 9th, 2007, 11:48 PM

Idle Air Control.

jagstang96 · February 10th, 2007, 12:14 AM

I agree with casper check your vacumm fuel pressure check the regulator for fuel pressure, also one thing that wasnot mentioned is to check the IAT sensor this sensor checks the temp of the air and helps adjust your fuel and aur mixture, u can check this with a ohmeter.

jagstang96 · February 10th, 2007, 12:15 AM

sorry for the typos

97_4.6L_Stang · February 10th, 2007, 02:42 AM

ya as far as the vacuume goes i have a vacuume gauge it reads fine. could it possibly me mass air flow sensor. i do have a dirty filter. im hopper changin the filter will help. thanks for the help guys.

Casper98GT · February 10th, 2007, 09:44 AM

The MAF would give you a no start if something got on the hotwire. And if you could ever get it to start, no matter if you gave it gas or not it wouldnt stay running. If something was in the way of it, say leaf of whatever...it would start but run shitty and want to die. Also when giving it gas it would die down and wanna quit.

DragonFreak · February 10th, 2007, 01:57 PM

hmmm ima have to pull my maf and check it out might save me in spending a ton of money

97_4.6L_Stang · February 10th, 2007, 03:08 PM

Originally Posted by Casper98GT

The MAF would give you a no start if something got on the hotwire. And if you could ever get it to start, no matter if you gave it gas or not it wouldnt stay running. If something was in the way of it, say leaf of whatever...it would start but run shitty and want to die. Also when giving it gas it would die down and wanna quit.

Thats true. im takin it to my buddies shop in a bit. so if we figure it out ill post the prob. thanks for the advice guys it helped alot

Casper98GT · February 11th, 2007, 12:46 AM

If you suspect youre MAF at all, just take it out and clean it. Doesnt take much time at all, remove the 2 torques screws holding it in and use elec. parts cleaner until you get the 2 hot wires clean. I always like to disconnect the battery for the entire time, so i can let the KAM reset and start fresh.

97_4.6L_Stang · February 11th, 2007, 08:33 PM

i found the problem. on the opposite side of the throttle cables on the throttbody there is a hole on the underside below the bottom right hand bolt. its a vacuume leak. any ideas on what goes there?

97_4.6L_Stang · February 11th, 2007, 09:54 PM

there was a plug for it.

Casper98GT · February 11th, 2007, 10:36 PM

a pic?

Casper98GT · February 11th, 2007, 10:46 PM

here???

97_4.6L_Stang · February 12th, 2007, 02:31 AM

yea its under the throttle body above that injector you can see in this pic. there is a hole with a plug in it. i think its called a retard port. the hole runs virtically up into the throttle body.the plug requires an allen wrench, it had came outta mine and was causing a vac leak. luckily i found the plug beside my intake manifold

97_4.6L_Stang · February 12th, 2007, 02:59 AM

here

February 9th, 2007, 04:17 AM	#1
97_4.6L_Stang Regular Join Date: Jan 2007 Posts: 106 iTrader: 0 reviews	So Basically I got a Prob. Ive been answering some questions for some of yall. so now maybe you can help me lol. I think im having a fuel problem. it started with this; i start my car when its cold outside and it tries to die the first crank. then after that its fine. Now its trying to die everytime im at idle. even after ive driven it a while. i have to keep my foot on the gas to keep the rpms up. any help would be greatly appreciated. My IAC has been changed and I do have a dirty air filter if that will help with figuring out the prob. could it be EGR? Thanks __________________ 97 Mustang GT, MAC CAI, Underdrive Pulleys, Flowmaster Exhaust, BBK Offroad H-Pipe, 3:73 Gear, Autologic Chip, B&M Short Throw Shifter, Centerforce Clutch, Msd, Eibach Sportline Springs

February 9th, 2007, 03:14 PM	#2
Jucostud booooost'd 2007 Mustang Join Date: Nov 2006 Location: drink'n ur kool-aid Posts: 6,985 iTrader: 0 reviews	I don't know what your problem is, but my uncles car did the exact same thing. He never did figure out what the problem, but his engine ended up dieing on him not long afterwards. My advice is take it to a shop as soon as possible! __________________ Jucostud's Official Build Thread I'm selling everything off my car, if i have something u want, pm me. 1988 lx 5.0 - Daily 2007 vortech gt - for sale 2012 mustang 5.0 - December 2011

February 9th, 2007, 04:16 PM	#4
97_4.6L_Stang Regular Join Date: Jan 2007 Posts: 106 iTrader: 0 reviews	thanks man that would be great. im workin on mine tomorrow also. im gonna go to ford. my buddy works there so ill let you know if i find out anything. hopefully it wont be a hard fix. i hopin for an EGR. im pretty sure if the EGR goes bad and gets stuck open it causes a rough idle and causes the car to die. __________________ 97 Mustang GT, MAC CAI, Underdrive Pulleys, Flowmaster Exhaust, BBK Offroad H-Pipe, 3:73 Gear, Autologic Chip, B&M Short Throw Shifter, Centerforce Clutch, Msd, Eibach Sportline Springs

February 9th, 2007, 05:18 PM	#5
Casper98GT Hardcore Enthusiast Join Date: Aug 2005 Location: NEW HAMPSHIRE Posts: 2,395 iTrader: 0 reviews	could be a number of things. Check fuel too. Could have a bad regulator. But the Iac usually goes and cause stalling issues. Alot of stuff you should check before asking though. Vaccum leaks? Clogged air fitler, or just a little dirty ? Also have you replaced the fuel filter any time n the past? __________________ 91 LX, 5spd. Ex:Toyota/Ford tech Marine Machinery Technician, Department of Defense.

February 9th, 2007, 10:26 PM	#6
1998_svt_cobra Regular 1998 SVT Mustang Cobra Join Date: Nov 2006 Location: Columbus, NE Posts: 274 iTrader: 0 reviews	What's an IAC? __________________ Kennebell 2.1L Twin Screw soon tooooo cooome! __________________^__________________ IT'S WATCHING YOU VETTE BOY

February 9th, 2007, 04:12 PM	#3
98GT4.6 Newbie Join Date: Dec 2006 Posts: 14 iTrader: 0 reviews	I had the same prob with mine. Turned out it was the IAC. How long ago was the it changed? Could possibly be faulty. My buddies car is also doing the same thing, isnt the IAC. We're working on it this weekend. If we figure it out Ill let you know what we did and maybe you have the same prob. ( or vise versa)

February 9th, 2007, 11:48 PM	#7
Boomer Enthusiast Join Date: Oct 2006 Location: warren, Mi Posts: 941 iTrader: 0 reviews	Idle Air Control. __________________ Just another 10 second Mustang, what did you expect ? http://youtube.com/watch?v=BgykaUrmfvM

February 10th, 2007, 12:14 AM	#8
jagstang96 Regular Join Date: Aug 2006 Posts: 168 iTrader: 0 reviews	I agree with casper check your vacumm fuel pressure check the regulator for fuel pressure, also one thing that wasnot mentioned is to check the IAT sensor this sensor checks the temp of the air and helps adjust your fuel and aur mixture, u can check this with a ohmeter.

February 10th, 2007, 12:15 AM	#9
jagstang96 Regular Join Date: Aug 2006 Posts: 168 iTrader: 0 reviews	sorry for the typos

February 10th, 2007, 02:42 AM	#10
97_4.6L_Stang Regular Join Date: Jan 2007 Posts: 106 iTrader: 0 reviews	ya as far as the vacuume goes i have a vacuume gauge it reads fine. could it possibly me mass air flow sensor. i do have a dirty filter. im hopper changin the filter will help. thanks for the help guys. __________________ 97 Mustang GT, MAC CAI, Underdrive Pulleys, Flowmaster Exhaust, BBK Offroad H-Pipe, 3:73 Gear, Autologic Chip, B&M Short Throw Shifter, Centerforce Clutch, Msd, Eibach Sportline Springs

February 10th, 2007, 09:44 AM	#11
Casper98GT Hardcore Enthusiast Join Date: Aug 2005 Location: NEW HAMPSHIRE Posts: 2,395 iTrader: 0 reviews	The MAF would give you a no start if something got on the hotwire. And if you could ever get it to start, no matter if you gave it gas or not it wouldnt stay running. If something was in the way of it, say leaf of whatever...it would start but run shitty and want to die. Also when giving it gas it would die down and wanna quit. __________________ 91 LX, 5spd. Ex:Toyota/Ford tech Marine Machinery Technician, Department of Defense.

February 10th, 2007, 01:57 PM	#12
DragonFreak Regular Join Date: Aug 2006 Location: Virginia Posts: 418 iTrader: 0 reviews	hmmm ima have to pull my maf and check it out might save me in spending a ton of money

February 11th, 2007, 12:46 AM	#14
Casper98GT Hardcore Enthusiast Join Date: Aug 2005 Location: NEW HAMPSHIRE Posts: 2,395 iTrader: 0 reviews	If you suspect youre MAF at all, just take it out and clean it. Doesnt take much time at all, remove the 2 torques screws holding it in and use elec. parts cleaner until you get the 2 hot wires clean. I always like to disconnect the battery for the entire time, so i can let the KAM reset and start fresh. __________________ 91 LX, 5spd. Ex:Toyota/Ford tech Marine Machinery Technician, Department of Defense.

February 11th, 2007, 08:33 PM	#15
97_4.6L_Stang Regular Join Date: Jan 2007 Posts: 106 iTrader: 0 reviews	i found the problem. on the opposite side of the throttle cables on the throttbody there is a hole on the underside below the bottom right hand bolt. its a vacuume leak. any ideas on what goes there? __________________ 97 Mustang GT, MAC CAI, Underdrive Pulleys, Flowmaster Exhaust, BBK Offroad H-Pipe, 3:73 Gear, Autologic Chip, B&M Short Throw Shifter, Centerforce Clutch, Msd, Eibach Sportline Springs

February 11th, 2007, 09:54 PM	#16
97_4.6L_Stang Regular Join Date: Jan 2007 Posts: 106 iTrader: 0 reviews	there was a plug for it. __________________ 97 Mustang GT, MAC CAI, Underdrive Pulleys, Flowmaster Exhaust, BBK Offroad H-Pipe, 3:73 Gear, Autologic Chip, B&M Short Throw Shifter, Centerforce Clutch, Msd, Eibach Sportline Springs

February 11th, 2007, 10:36 PM	#17
Casper98GT Hardcore Enthusiast Join Date: Aug 2005 Location: NEW HAMPSHIRE Posts: 2,395 iTrader: 0 reviews	a pic? __________________ 91 LX, 5spd. Ex:Toyota/Ford tech Marine Machinery Technician, Department of Defense.

February 12th, 2007, 02:31 AM	#19
97_4.6L_Stang Regular Join Date: Jan 2007 Posts: 106 iTrader: 0 reviews	yea its under the throttle body above that injector you can see in this pic. there is a hole with a plug in it. i think its called a retard port. the hole runs virtically up into the throttle body.the plug requires an allen wrench, it had came outta mine and was causing a vac leak. luckily i found the plug beside my intake manifold __________________ 97 Mustang GT, MAC CAI, Underdrive Pulleys, Flowmaster Exhaust, BBK Offroad H-Pipe, 3:73 Gear, Autologic Chip, B&M Short Throw Shifter, Centerforce Clutch, Msd, Eibach Sportline Springs

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