How can you test for IAC failure ?

Ga_50_foxbody · April 3rd, 2007, 10:43 AM

It seems to be a new IAC valve for the 2.3 is about $100. I will buy it if I have to but I want to be sure its failed and not just dirty.

Is there a way I can test this ? Either way Im going to at least remove it and clean it out and give it another go before I open up the wallet for a purchase.

Please Advise

Thanks ,

TurboLX · April 3rd, 2007, 11:40 AM

well how does the car act?

Ga_50_foxbody · April 3rd, 2007, 04:31 PM

its fine mostly during normal driving but when I let it idle like at a stop light it sputters and shuts off.

It does this in park as well. I filled up the tank w premium and ran it for a bit to see if it was some messed up gas but no go its still acting up. As long as I give it gas it's fine but when I come off it the car wont stay up.

it does this when the RPM's drop under 1k. but if I keep it over all is well

TurboLX · April 4th, 2007, 01:24 PM

yep thats it then, you can find a cheaper IAC from ebay or a donor, there all pretty much universal, the 5.0 ones should fit to

beeker · April 6th, 2007, 10:58 AM

try cleaning it out first with some carb cleaner also I would try cleaning and re setting the TPS also.

Ga_50_foxbody · April 8th, 2007, 07:26 PM

I cleaned it out and put i tback on and the issue was still the same so I was lucky enough to find another IAC for "FREE" and the car runs like a champ.

my tranny was acting up and rear was making noise so I got all that replaced as well.

Total cost of everything $250.00 - I love Georgia Salvage Yards

TurboLX · April 9th, 2007, 09:28 AM

haha if it isnt a junkyard its ebay

beeker · April 9th, 2007, 10:26 PM

Originally Posted by TurboLX

haha if it isnt a junkyard its ebay

I prefer top call them "recycle facilities"

TurboLX · April 10th, 2007, 12:58 PM

lol

April 3rd, 2007, 10:43 AM	#1
Ga_50_foxbody Regular Join Date: Dec 2006 Posts: 81 iTrader: 0 reviews	How can you test for IAC failure ? It seems to be a new IAC valve for the 2.3 is about $100. I will buy it if I have to but I want to be sure its failed and not just dirty. Is there a way I can test this ? Either way Im going to at least remove it and clean it out and give it another go before I open up the wallet for a purchase. Please Advise Thanks , __________________ 1990 5.0 LX - Manual (for play) 1991 2.3L LX - Auto (for street) 1989 2.3Turbo - In the Works 1988 Thunderbird Turbo Coupe 2.3Turbo - (K&N , Gillis Boost Valve, Auto to T5 SWAP ) Yeah I'm a mustang Newbie - wanna fight about it ?

April 3rd, 2007, 11:40 AM	#2
TurboLX I Post Entirely Way Too Much 1988 Mustang LX Turbo Join Date: Oct 2006 Location: NY Posts: 8,781 Blog Entries: 1 iTrader: 0 reviews	well how does the car act? __________________ 1988 LX Coupe 2.5L, GT35R, 44mm WG, 32psi, C16.

April 3rd, 2007, 04:31 PM	#3
Ga_50_foxbody Regular Join Date: Dec 2006 Posts: 81 iTrader: 0 reviews	its fine mostly during normal driving but when I let it idle like at a stop light it sputters and shuts off. It does this in park as well. I filled up the tank w premium and ran it for a bit to see if it was some messed up gas but no go its still acting up. As long as I give it gas it's fine but when I come off it the car wont stay up. it does this when the RPM's drop under 1k. but if I keep it over all is well __________________ 1990 5.0 LX - Manual (for play) 1991 2.3L LX - Auto (for street) 1989 2.3Turbo - In the Works 1988 Thunderbird Turbo Coupe 2.3Turbo - (K&N , Gillis Boost Valve, Auto to T5 SWAP ) Yeah I'm a mustang Newbie - wanna fight about it ?

April 4th, 2007, 01:24 PM	#4
TurboLX I Post Entirely Way Too Much 1988 Mustang LX Turbo Join Date: Oct 2006 Location: NY Posts: 8,781 Blog Entries: 1 iTrader: 0 reviews	yep thats it then, you can find a cheaper IAC from ebay or a donor, there all pretty much universal, the 5.0 ones should fit to __________________ 1988 LX Coupe 2.5L, GT35R, 44mm WG, 32psi, C16.

April 8th, 2007, 07:26 PM	#6
Ga_50_foxbody Regular Join Date: Dec 2006 Posts: 81 iTrader: 0 reviews	Thanks I cleaned it out and put i tback on and the issue was still the same so I was lucky enough to find another IAC for "FREE" and the car runs like a champ. my tranny was acting up and rear was making noise so I got all that replaced as well. Total cost of everything $250.00 - I love Georgia Salvage Yards __________________ 1990 5.0 LX - Manual (for play) 1991 2.3L LX - Auto (for street) 1989 2.3Turbo - In the Works 1988 Thunderbird Turbo Coupe 2.3Turbo - (K&N , Gillis Boost Valve, Auto to T5 SWAP ) Yeah I'm a mustang Newbie - wanna fight about it ?

April 6th, 2007, 10:58 AM	#5
beeker Regular Join Date: Mar 2007 Posts: 116 iTrader: 0 reviews	try cleaning it out first with some carb cleaner also I would try cleaning and re setting the TPS also.

April 9th, 2007, 09:28 AM	#7
TurboLX I Post Entirely Way Too Much 1988 Mustang LX Turbo Join Date: Oct 2006 Location: NY Posts: 8,781 Blog Entries: 1 iTrader: 0 reviews	haha if it isnt a junkyard its ebay __________________ 1988 LX Coupe 2.5L, GT35R, 44mm WG, 32psi, C16.

April 10th, 2007, 12:58 PM	#9
TurboLX I Post Entirely Way Too Much 1988 Mustang LX Turbo Join Date: Oct 2006 Location: NY Posts: 8,781 Blog Entries: 1 iTrader: 0 reviews	lol __________________ 1988 LX Coupe 2.5L, GT35R, 44mm WG, 32psi, C16.

Remove Advertisements Sponsored Links
Ford Mustang Forum Advertisement

Threads Similar to: How can you test for IAC failure ?
Thread	Thread Starter	Forum	Replies	Last Post
Random Failure?	MSTGGT00	99-04	9	September 15th, 2007 03:52 PM
drag day...failure	itschristorres8	Drag	16	July 26th, 2007 01:04 AM
odometer failure	Plays With Squirrels	96-98	22	July 6th, 2007 09:41 PM
Failure.......tear	lwhitetrash88l	V6 Mustangs	30	April 14th, 2007 09:19 PM
Cam Bearing Failure	99mustang232	V6 Mustangs	5	November 2nd, 2006 02:14 AM

All times are GMT -4. The time now is 08:45 PM.
Contact Us - Modded Mustangs : Ford Mustang Forums - Privacy Statement - Top
Modded Mustangs is ©2005-2008, All Rights Reserved, And is Not Affiliated with Ford Motor Company. Forum is powered by vBulletin ©2000 - 2013, Jelsoft Ent. Ltd. & SEO by vBSEO 3.3.2 ©2009, Crawlability, Inc.