car dies when coming to a stop

bullitt ak · January 25th, 2011, 02:33 PM

it dies when i an stopping under breaking...it will happen in neutral or when its in gear if i am breaking hard enough..i also heard the idle the other day bouncing around a bit so i am going to clean the iac right now...i have heard of this problem happening to other people before but i never heard what it actually was? ill let u know what happens after i clean the iac...

i have to slow shift 3rd cause my synchro is bad so under slightly heavier breaking and d/sing into 3rd it dies alot if that helps

DsmDave · January 25th, 2011, 02:35 PM

mine does it too, sometimes in nuetral when I mash the brakes at a stop i can get the car to stall almost

bullitt ak · January 25th, 2011, 02:37 PM

i could see my idle drop before under the same circumstances and come back up, but now the car is actually dieing

XectriK · January 25th, 2011, 02:40 PM

There are three things that can cause an engine to die. No Fuel, No Spark, No Air. So do your basic checks like spark plugs, air filter, fuel filter. Cleaning the IAC is probably where I would start too.

Willy Mo · January 25th, 2011, 02:49 PM

^ excessive load on the motor could make it die as well. BUt clean the IAC, and teh MAF (with MAF cleaner) and see if that helps.

mustang_gtr_99 · January 25th, 2011, 03:05 PM

Does you lights dim or radio turn off suddenly when coming to a stop? Just a thought because it could be a bad alternator not fully charging your battery. That happened to me a while back. I recharged the battery and over the course of a month it was dead again and I found out it was the alternator. Sometimes my lights would just dim or radio would power off but the car would die coming to a stop as soon as the rpm's dropped to idle.

Willy Mo · January 25th, 2011, 03:09 PM

^^ this is another possibility.

WickedSnake00 · January 25th, 2011, 03:13 PM

Can't forget vacuum/exhaust leaks. That's how mine was when I bought it. You'd brake or slow it down and you'd just watch as your tach would drop until it sputtered and died, unless you rev'd it.

bullitt ak · January 25th, 2011, 03:20 PM

Originally Posted by mustang_gtr_99

Does you lights dim or radio turn off suddenly when coming to a stop? Just a thought because it could be a bad alternator not fully charging your battery. That happened to me a while back. I recharged the battery and over the course of a month it was dead again and I found out it was the alternator. Sometimes my lights would just dim or radio would power off but the car would die coming to a stop as soon as the rpm's dropped to idle.

yeah but my car will start right back up

bullitt ak · January 25th, 2011, 03:22 PM

Originally Posted by XectriK

There are three things that can cause an engine to die. No Fuel, No Spark, No Air. So do your basic checks like spark plugs, air filter, fuel filter. Cleaning the IAC is probably where I would start too.

well it runs fine otherwise so i dont think spark plugs..fuel filter was just changed and it has a k&n filter...and this doesnt happen all the time if it makes any difference...i could be dosnwishifting around a turn at like 30mph into 3rd gear and it would die if i am braking i guess because i have to push it into 3rd so slowly...

01palehorsegt · January 25th, 2011, 04:22 PM

More than likely the IAC is either dirty or bad....but could also be a faulty TPS...

Dan

mustang_gtr_99 · January 25th, 2011, 04:29 PM

Yah, mine would to for a while but eventualy it would be dead??? Just something to look out for just in case

bullitt ak · January 25th, 2011, 04:30 PM

cleaning the iac seems to have solved the problem

Willy Mo · January 25th, 2011, 04:35 PM

^^ good deal!

mustang_gtr_99 · January 25th, 2011, 05:34 PM

Did it die every time or at odd times?

nileppezdel77! · January 25th, 2011, 06:05 PM

I had the same problem, cleaned my Maf, fixed it temporarily but it turned out to be my 5th cylinder coil. If it comes back, hopefully it'll throw a code.

01palehorsegt · January 26th, 2011, 07:20 AM

Good, looks like you've found the culprit...I would keep an eye on it though, cause even after cleaning it could go bad on ya....glad you got it taken care of though...

Dan

January 25th, 2011, 02:33 PM	#1
bullitt ak Hardcore Enthusiast 2001 mustang bullitt Join Date: Aug 2008 Posts: 1,033 iTrader: 0 reviews	car dies when coming to a stop it dies when i an stopping under breaking...it will happen in neutral or when its in gear if i am breaking hard enough..i also heard the idle the other day bouncing around a bit so i am going to clean the iac right now...i have heard of this problem happening to other people before but i never heard what it actually was? ill let u know what happens after i clean the iac... i have to slow shift 3rd cause my synchro is bad so under slightly heavier breaking and d/sing into 3rd it dies alot if that helps __________________

January 25th, 2011, 02:37 PM	#3
bullitt ak Hardcore Enthusiast 2001 mustang bullitt Join Date: Aug 2008 Posts: 1,033 iTrader: 0 reviews	i could see my idle drop before under the same circumstances and come back up, but now the car is actually dieing __________________

January 25th, 2011, 02:40 PM	#4
XectriK Hardcore Enthusiast 2000 Ford Mustang GT Join Date: Nov 2008 Location: Charleston, SC Posts: 2,733 iTrader: 0 reviews	There are three things that can cause an engine to die. No Fuel, No Spark, No Air. So do your basic checks like spark plugs, air filter, fuel filter. Cleaning the IAC is probably where I would start too. __________________

January 25th, 2011, 02:49 PM	#5
Willy Mo MM Fanatic 2002 Mustang GT Join Date: Sep 2008 Location: MO Posts: 4,368 Blog Entries: 1 iTrader: 2 reviews	^ excessive load on the motor could make it die as well. BUt clean the IAC, and teh MAF (with MAF cleaner) and see if that helps. __________________

January 25th, 2011, 03:05 PM	#6
mustang_gtr_99 Hardcore Enthusiast 1999 3V GT/2007 GT D/D corner carver Join Date: Feb 2009 Location: Eugene, Oregon Posts: 2,730 iTrader: 2 reviews	Does you lights dim or radio turn off suddenly when coming to a stop? Just a thought because it could be a bad alternator not fully charging your battery. That happened to me a while back. I recharged the battery and over the course of a month it was dead again and I found out it was the alternator. Sometimes my lights would just dim or radio would power off but the car would die coming to a stop as soon as the rpm's dropped to idle. __________________ OS2 (SW) USN REAR SEAT DELETE FABRICATOR "RSD pics in garage" 99 3V GT/2007 GT DD

January 25th, 2011, 02:35 PM	#2
DsmDave Enthusiast 2001 Mustang GT Join Date: Nov 2010 Location: Poughquag NY Posts: 979 iTrader: 2 reviews	mine does it too, sometimes in nuetral when I mash the brakes at a stop i can get the car to stall almost

January 25th, 2011, 03:09 PM	#7
Willy Mo MM Fanatic 2002 Mustang GT Join Date: Sep 2008 Location: MO Posts: 4,368 Blog Entries: 1 iTrader: 2 reviews	^^ this is another possibility. __________________

January 25th, 2011, 03:13 PM	#8
WickedSnake00 MM's king of Neon's 404 - car not found 17.81@87 Join Date: Aug 2010 Location: Diesel Engine Capital of the World, Columbus, IN Posts: 7,374 iTrader: 0 reviews	Can't forget vacuum/exhaust leaks. That's how mine was when I bought it. You'd brake or slow it down and you'd just watch as your tach would drop until it sputtered and died, unless you rev'd it. __________________ Official Secondhand Snake Build Thread Here Looks Like a Cobra, Sounds Like a Cobra, Tastes Like a Cobra, Not a Cobra. For Sale: P71 Interceptor motor

January 25th, 2011, 04:22 PM	#11
01palehorsegt Newbie 2001 Mustang GT Join Date: Jan 2011 Location: Pandora, Ohio Posts: 7 iTrader: 0 reviews	More than likely the IAC is either dirty or bad....but could also be a faulty TPS... Dan

January 25th, 2011, 04:29 PM	#12
mustang_gtr_99 Hardcore Enthusiast 1999 3V GT/2007 GT D/D corner carver Join Date: Feb 2009 Location: Eugene, Oregon Posts: 2,730 iTrader: 2 reviews	Yah, mine would to for a while but eventualy it would be dead??? Just something to look out for just in case __________________ OS2 (SW) USN REAR SEAT DELETE FABRICATOR "RSD pics in garage" 99 3V GT/2007 GT DD

January 25th, 2011, 04:30 PM	#13
bullitt ak Hardcore Enthusiast 2001 mustang bullitt Join Date: Aug 2008 Posts: 1,033 iTrader: 0 reviews	cleaning the iac seems to have solved the problem __________________

January 25th, 2011, 04:35 PM	#14
Willy Mo MM Fanatic 2002 Mustang GT Join Date: Sep 2008 Location: MO Posts: 4,368 Blog Entries: 1 iTrader: 2 reviews	^^ good deal! __________________

January 25th, 2011, 05:34 PM	#15
mustang_gtr_99 Hardcore Enthusiast 1999 3V GT/2007 GT D/D corner carver Join Date: Feb 2009 Location: Eugene, Oregon Posts: 2,730 iTrader: 2 reviews	Did it die every time or at odd times? __________________ OS2 (SW) USN REAR SEAT DELETE FABRICATOR "RSD pics in garage" 99 3V GT/2007 GT DD

January 25th, 2011, 06:05 PM	#16
nileppezdel77! Nile P. Pezdel of Pez Dispenser Inc. CCA 2001 Mustang GT Vert Join Date: Dec 2010 Location: Brooklyn Posts: 4,271 iTrader: 3 reviews	I had the same problem, cleaned my Maf, fixed it temporarily but it turned out to be my 5th cylinder coil. If it comes back, hopefully it'll throw a code.

January 26th, 2011, 07:20 AM	#17
01palehorsegt Newbie 2001 Mustang GT Join Date: Jan 2011 Location: Pandora, Ohio Posts: 7 iTrader: 0 reviews	Good, looks like you've found the culprit...I would keep an eye on it though, cause even after cleaning it could go bad on ya....glad you got it taken care of though... Dan

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