umm have a weird problem? idle problem?

blue03mach1 · October 13th, 2007, 12:04 AM

so it basically started today... my engine is idling at like 1200-2500 wtf? lets say i put it in 4th gear goign 35 it will drop around 1400 rpms as soon as i put it into neutral it rises up around 2 grand... its idling higher for some reason... vacuum hose? any help? oh btw... i turned off the car and waited and as i drove around it seemed fine and i got on it and slowed down put it in neutral and it started to idle at 2400rpms any ideas? its doing it either way, i take it easy or i get on it...

00redgt · October 13th, 2007, 12:07 AM

idile sensor maybe?

blue03mach1 · October 13th, 2007, 12:09 AM

yeah... that might be it... my dad said that... easy cheap fix right?

pa.ulB · October 13th, 2007, 12:11 AM

idle sensor?? i don't think its a vacuum hose, beacause that would just idle your car down until it dies, iam not sure. Check all your hoses attached to your intake plantium.

tlr96 · October 13th, 2007, 12:11 AM

TPS sensor?

Onemanzu · October 13th, 2007, 01:47 AM

check your throttle and idle sensors... get some cleaner and just wipe them down... see if that betters or worsens the problem...

its not a vacuum leak... i know what those are and you don't got one from the sounds of it...

damn VW's

anyways best of luck on the fix

03MACH1STK · October 13th, 2007, 02:56 AM

Take a look at the throttle body, to the left of it is a "IAC" or idle air control valve, it has a small wire harness plugged into it. This allows air to by pass the throttle body in the closed position so the engine can idle. Try removing it and cleaning any carbon and dirt. It may be sticking to cause the condition you are going to. May have to be replaced.

superbeef1000 · October 13th, 2007, 03:32 AM

Originally Posted by 03MACH1STK

Take a look at the throttle body, to the left of it is a "IAC" or idle air control valve, it has a small wire harness plugged into it. This allows air to by pass the throttle body in the closed position so the engine can idle. Try removing it and cleaning any carbon and dirt. It may be sticking to cause the condition you are going to. May have to be replaced.

yup +1000

TyCouey2000GT · October 13th, 2007, 08:16 AM

Ya, good luck on the fix, I'd check all your lines running to the tb and such, especially the idle control screw and the iac.

blue03mach1 · October 13th, 2007, 09:45 AM

1000bucks are u serious?

blue03mach1 · October 13th, 2007, 09:46 AM

btw thanks for all the info

DrHolliday · October 13th, 2007, 09:52 AM

Originally Posted by blue03mach1

1000bucks are u serious?

He was just strongly agreeing with you

blue03mach1 · October 13th, 2007, 09:58 AM

wow i hope its not that then...i kinda want my headers to get installed monday

04gtvert · October 13th, 2007, 10:01 AM

If u have a good tuner you can run live data logging on start up or check the diagnostics.

DrHolliday · October 13th, 2007, 10:02 AM

Originally Posted by blue03mach1

wow i hope its not that then...i kinda want my headers to get installed monday

it won't be $1000 bucks, i'm not sure how much the sensor is, but its way under 1,000

saying +1 or +1000 is just away of saying you agree with the previous poster. You should still be able to afford your headers.

blue03mach1 · October 13th, 2007, 10:06 AM

ohh wow my bad...im still too tired im not use to waking up this early on a saturday

Hunt_chevs · March 4th, 2008, 12:03 PM

my 99 had the same problem,.. not quite as drastic,.. turned out to be the tps sensor

October 13th, 2007, 12:04 AM	#1
blue03mach1 Regular Join Date: Jun 2007 Posts: 308	umm have a weird problem? idle problem? so it basically started today... my engine is idling at like 1200-2500 wtf? lets say i put it in 4th gear goign 35 it will drop around 1400 rpms as soon as i put it into neutral it rises up around 2 grand... its idling higher for some reason... vacuum hose? any help? oh btw... i turned off the car and waited and as i drove around it seemed fine and i got on it and slowed down put it in neutral and it started to idle at 2400rpms any ideas? its doing it either way, i take it easy or i get on it... __________________ 2001 bullitt- 3 73 gears, bbk x pipe, bbk LT headers, JLT cai, 125 shot and tuned. (as far as performance mods) 2003 mach1- 4 10s, mac prochamber, JLT short ram.

October 13th, 2007, 12:07 AM	#2
00redgt Hardcore Enthusiast 2000 mustang gt Join Date: Oct 2007 Location: oakwood,va Posts: 1,009	idile sensor maybe? __________________ 2000 GT 1chamber flows.summit tips.20%all around.255/45/17 sumitomo htr z tires.an still slow soon to come.cai an o/r h pipe

October 13th, 2007, 12:09 AM	#3
blue03mach1 Regular Join Date: Jun 2007 Posts: 308	yeah... that might be it... my dad said that... easy cheap fix right? __________________ 2001 bullitt- 3 73 gears, bbk x pipe, bbk LT headers, JLT cai, 125 shot and tuned. (as far as performance mods) 2003 mach1- 4 10s, mac prochamber, JLT short ram.

October 13th, 2007, 12:11 AM	#4
pa.ulB Regular 2004 GT slow.... Join Date: Nov 2006 Location: PA Posts: 409	idle sensor?? i don't think its a vacuum hose, beacause that would just idle your car down until it dies, iam not sure. Check all your hoses attached to your intake plantium. __________________ 2004 Crimson red GT saleen s/c, bolt ons

October 13th, 2007, 12:11 AM	#5
tlr96 Hardcore Enthusiast 1996 Mustang GT Join Date: Mar 2007 Location: Effingham, IL Posts: 1,793	TPS sensor? __________________ view my garage for pics and modifications listen to my exhaust video 1 video 2 video 3

October 13th, 2007, 02:56 AM	#7
03MACH1STK Newbie Join Date: Dec 2006 Posts: 7	Take a look at the throttle body, to the left of it is a "IAC" or idle air control valve, it has a small wire harness plugged into it. This allows air to by pass the throttle body in the closed position so the engine can idle. Try removing it and cleaning any carbon and dirt. It may be sticking to cause the condition you are going to. May have to be replaced.

October 13th, 2007, 08:16 AM	#9
TyCouey2000GT Regular 2000 Mustang GT Join Date: Jun 2007 Posts: 478	Ya, good luck on the fix, I'd check all your lines running to the tb and such, especially the idle control screw and the iac. __________________ 2000 Atlantic Blue GT Hedman Shortys w/ catted magnaflow x pipe Mac cai Burnt Race Chip-11HP

October 13th, 2007, 09:45 AM	#10
blue03mach1 Regular Join Date: Jun 2007 Posts: 308	1000bucks are u serious? __________________ 2001 bullitt- 3 73 gears, bbk x pipe, bbk LT headers, JLT cai, 125 shot and tuned. (as far as performance mods) 2003 mach1- 4 10s, mac prochamber, JLT short ram.

October 13th, 2007, 09:46 AM	#11
blue03mach1 Regular Join Date: Jun 2007 Posts: 308	btw thanks for all the info __________________ 2001 bullitt- 3 73 gears, bbk x pipe, bbk LT headers, JLT cai, 125 shot and tuned. (as far as performance mods) 2003 mach1- 4 10s, mac prochamber, JLT short ram.

October 13th, 2007, 09:58 AM	#13
blue03mach1 Regular Join Date: Jun 2007 Posts: 308	wow i hope its not that then...i kinda want my headers to get installed monday __________________ 2001 bullitt- 3 73 gears, bbk x pipe, bbk LT headers, JLT cai, 125 shot and tuned. (as far as performance mods) 2003 mach1- 4 10s, mac prochamber, JLT short ram.

October 13th, 2007, 10:01 AM	#14
04gtvert Regular Join Date: Aug 2007 Location: Joplin, MO Posts: 117	If u have a good tuner you can run live data logging on start up or check the diagnostics.

October 13th, 2007, 10:06 AM	#16
blue03mach1 Regular Join Date: Jun 2007 Posts: 308	ohh wow my bad...im still too tired im not use to waking up this early on a saturday __________________ 2001 bullitt- 3 73 gears, bbk x pipe, bbk LT headers, JLT cai, 125 shot and tuned. (as far as performance mods) 2003 mach1- 4 10s, mac prochamber, JLT short ram.

March 4th, 2008, 12:03 PM	#17
Hunt_chevs Regular Join Date: Aug 2007 Posts: 489	my 99 had the same problem,.. not quite as drastic,.. turned out to be the tps sensor

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