Engine Stalling Problems!

crewdog318 · October 12th, 2006, 02:08 PM

I have a 2001 GT with a 4.6L. It has 68,000 miles on it & has developed a start up problem.

When I start it up for the first time of the day, or it sits for a few hours, the engine starts but RPM goes right to zero. I can keep it running by giving it some gas to maintain the RPM's but have to left foot the brake when stopping. This condition lasts sometimes 20 -25 miles then everything returns to normal.

BTW....until it returns to normal, the RPM's are higher and the transmission has different shift points.

I've cleaned the K&N filter, changed the plugs & checked every vacuum line. ANY IDEAS? HELLLLLLLLLLLLP!

drgnracin72 · October 12th, 2006, 02:44 PM

iac valve, could also be a problem with the tune!

drgnracin72 · October 12th, 2006, 02:45 PM

im trying to find the thing about how to clean it.

crewdog318 · October 12th, 2006, 08:18 PM

IAC valve? What does IAC stand for?

Black Bullitt · October 13th, 2006, 12:04 AM

idle air control. You can remove it and clean it with brake parts cleaner. That should clean a lot of carbon out of it, but sometimes the valve can be bad enough that you have to replace it. I'd try the barke parts cleaner first and see if that fixes it.

energiesource · October 13th, 2006, 01:48 AM

yeah i had a problem
i cleaned it but it didnt do shit

i'll be driving and all of a sudden slow down and it'll go down to like 300 rpm, ill pretty much lose power steering, everything, so yeah. then it goes back to normal after i give it gas

Black Bullitt · October 13th, 2006, 02:29 AM

The valve might be sticking. I would replace it.

crewdog318 · October 13th, 2006, 06:41 AM

Thanks for the info. I'll replace the IAC valve & see what happens. Thanks again.

crewdog318 · October 13th, 2006, 04:54 PM

Guess what? The IAC valve fixed my pony!! We're back in business!

Many thanks to DRGNRACIN72!!!!!

energiesource · October 13th, 2006, 04:58 PM

how mucgh did you pay for yours?

crewdog318 · October 13th, 2006, 05:11 PM

$52 at Autozone. I didn't want to go thru the hassle of cleaning it & wondering how long it would last.

energiesource · October 13th, 2006, 05:16 PM

omfg mine is 182 everywhere i call

MidniteGT · October 13th, 2006, 05:38 PM

Just a question what is the IAC Valve made of and where is it at. Just a question. And also Crewdog, are you in the USAF?

crewdog318 · October 13th, 2006, 07:16 PM

MidniteGT..........I'm retired from the Air Force now but was a crew chief on F-111's, F-101's, F-4's and finished on the Falcons. Never had the pleasure to crew an Eagle.

It's a metal cylinder shaped object located on the leading edge of the throttle body. It has 2 bolts & one connector. It takes me longer to change my oil than it did to change the IAC valve!

October 12th, 2006, 02:08 PM	#1
crewdog318 Newbie Join Date: Oct 2006 Location: Massillon, Ohio Posts: 6	Engine Stalling Problems! I have a 2001 GT with a 4.6L. It has 68,000 miles on it & has developed a start up problem. When I start it up for the first time of the day, or it sits for a few hours, the engine starts but RPM goes right to zero. I can keep it running by giving it some gas to maintain the RPM's but have to left foot the brake when stopping. This condition lasts sometimes 20 -25 miles then everything returns to normal. BTW....until it returns to normal, the RPM's are higher and the transmission has different shift points. I've cleaned the K&N filter, changed the plugs & checked every vacuum line. ANY IDEAS? HELLLLLLLLLLLLP!

October 12th, 2006, 08:18 PM	#4
crewdog318 Newbie Join Date: Oct 2006 Location: Massillon, Ohio Posts: 6	Engine stalling IAC valve? What does IAC stand for?

October 13th, 2006, 12:04 AM	#5
Black Bullitt Regular Join Date: Oct 2006 Location: Virginia Posts: 179	idle air control. You can remove it and clean it with brake parts cleaner. That should clean a lot of carbon out of it, but sometimes the valve can be bad enough that you have to replace it. I'd try the barke parts cleaner first and see if that fixes it. __________________ 2001 Mustang Bullitt #5427 TOTAL LOSS SELLING ALL PARTS http://www.moddedmustangs.com/forums...2-3-500-a.html

October 13th, 2006, 01:48 AM	#6
energiesource Hardcore Enthusiast Join Date: Oct 2006 Location: Up der in canada eh Posts: 2,373	yeah i had a problem i cleaned it but it didnt do shit i'll be driving and all of a sudden slow down and it'll go down to like 300 rpm, ill pretty much lose power steering, everything, so yeah. then it goes back to normal after i give it gas __________________ 2000 Mustang GT, Steeda Triax shifter, Underdrive pulleys, SLP LM2, MAC L/T and O/R H-pipe. Transmission fix, new clutch Coming soon: Brakes.

October 13th, 2006, 02:29 AM	#7
Black Bullitt Regular Join Date: Oct 2006 Location: Virginia Posts: 179	The valve might be sticking. I would replace it. __________________ 2001 Mustang Bullitt #5427 TOTAL LOSS SELLING ALL PARTS http://www.moddedmustangs.com/forums...2-3-500-a.html

Engine Stalling Problems!

Engine Stalling Problems!

Engine stalling

Engine stalling

Engine stalling

engine stalling

engine stalling

October 13th, 2006, 06:41 AM	#8
crewdog318 Newbie Join Date: Oct 2006 Location: Massillon, Ohio Posts: 6	Engine stalling Thanks for the info. I'll replace the IAC valve & see what happens. Thanks again.

October 13th, 2006, 04:54 PM	#9
crewdog318 Newbie Join Date: Oct 2006 Location: Massillon, Ohio Posts: 6	Engine stalling Guess what? The IAC valve fixed my pony!! We're back in business! Many thanks to DRGNRACIN72!!!!!

October 13th, 2006, 04:58 PM	#10
energiesource Hardcore Enthusiast Join Date: Oct 2006 Location: Up der in canada eh Posts: 2,373	how mucgh did you pay for yours? __________________ 2000 Mustang GT, Steeda Triax shifter, Underdrive pulleys, SLP LM2, MAC L/T and O/R H-pipe. Transmission fix, new clutch Coming soon: Brakes.

October 13th, 2006, 05:11 PM	#11
crewdog318 Newbie Join Date: Oct 2006 Location: Massillon, Ohio Posts: 6	engine stalling $52 at Autozone. I didn't want to go thru the hassle of cleaning it & wondering how long it would last.

October 13th, 2006, 05:16 PM	#12
energiesource Hardcore Enthusiast Join Date: Oct 2006 Location: Up der in canada eh Posts: 2,373	omfg mine is 182 everywhere i call __________________ 2000 Mustang GT, Steeda Triax shifter, Underdrive pulleys, SLP LM2, MAC L/T and O/R H-pipe. Transmission fix, new clutch Coming soon: Brakes.

October 13th, 2006, 05:38 PM	#13
MidniteGT Newbie Join Date: Oct 2006 Posts: 6	Just a question what is the IAC Valve made of and where is it at. Just a question. And also Crewdog, are you in the USAF? __________________ A drive a Mustang and Work on a F-15 Eagle

October 13th, 2006, 07:16 PM	#14
crewdog318 Newbie Join Date: Oct 2006 Location: Massillon, Ohio Posts: 6	engine stalling MidniteGT..........I'm retired from the Air Force now but was a crew chief on F-111's, F-101's, F-4's and finished on the Falcons. Never had the pleasure to crew an Eagle. It's a metal cylinder shaped object located on the leading edge of the throttle body. It has 2 bolts & one connector. It takes me longer to change my oil than it did to change the IAC valve!

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