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  #1  
Old 08-13-2002, 07:29 PM
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Join Date: Jan 2002
Location: Central PA
Vehicle: 2003 Ford F-150
Posts: 113
Smile Anyone have pics of the IAC valve?

I have been having off and on problems with my 98 4.6L not wanting to idle. After reading many posts, I think I have a dirty or bad IAC valve. Does anyone have any pics of this part? I would like to clean or replace it, but I need to know what to look for. Thanks for your help.
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  #2  
Old 08-13-2002, 10:34 PM
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Join Date: Jan 2002
Location: Central PA
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Never mind, I see it.... does anyone have instructions on what part of it sticks and can be cleaned though?
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  #3  
Old 08-14-2002, 02:46 AM
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Location: Vacaville CA
Vehicle: 1997 Ford F-150
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Dirty IAC

Well,

I had this problem on my 91 Supercoupe, but the one on the F-150's look similar, You need to take it off.. and soak the inside.. not the whole valve.. just the inner springs and stuff in Carb Cleaner... I cleaned mine.. and it worked for about 30 minutes.. then it messed up again. So i just went to ford and bought a new one. Was 85 bucks, For the SC. It will probably be cheaper for the trucks though ... What symtoms are you having.. usually when the IAC fails.. it fails and your RPM's will remain somewheres around 2500-3000 RPM.

But when i did to attempt clean mine.. i used Carb Cleaner and pipe cleaners.. cotton qtip's to get in there..

The IAC is located directly behind.. and on top of the throttle body under the dust cover.


Scott
__________________
1997 F-150 Extended Cab 4X4
4.6L V8
Flowmaster 40 series muffler
American Racing Rims Atlas Polished
MAC Cool air Intake kit.
Nerf Bars
Ventshades
Custom Sun Roof
Herculiner Bed Liner
White Face Gauges w/carbon fiber- overlay
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2 JL Audio 8IB4
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Rockford Fosgate Punch 600a5 amp

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  #4  
Old 08-14-2002, 07:49 PM
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Join Date: Mar 2001
Location: Corona, CA
Vehicle: 2001 Ford F150
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You not supposed to use any type of chemicals inside of the IAC as it can damage the valve seat...from the Ford Manual.
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  #5  
Old 08-14-2002, 09:58 PM
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You're also not supposed to use vice grips on bolts, but it works.
If i remember correctly, and i may not. The IAC valve is all metal. The seat and all. So carb cleaner shouldnt hurt it. I don't know what ford is talking about, but if you believe it will screw it up, then ford doesnt make 85 bucks on a 25 dollar item.
Plus, its already not working right, clean the hell out of it.
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  #6  
Old 08-14-2002, 10:09 PM
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Join Date: Mar 2001
Location: Houston, TEXAS
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Ditto Dodge. I just cleaned my IAC and TB with carb cleaner and believe it or not my truck still runs....in fact, even better than before the cleaning.

Ford also says not to clean the TB. But if you don't the engine CAN run like crap. So what do you do? Buy a new TB from Ford for God knows how much. I don't think so.
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  #7  
Old 08-15-2002, 01:11 AM
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Ford IAC

Probably becuase ford wants you to go buy a new one from them hehehe. However, when my IAC went bad in my T-bird, I called ford, and asked them about the IAC, and the Tech Rep from ford told me to use carb cleaner as well.. and the SuperCoupe IAC has plastic vanes... Like i said before, it worked for about 30 minutes, and i ended up buying a new one anyways..

My 2 cents.

Scott
__________________
1997 F-150 Extended Cab 4X4
4.6L V8
Flowmaster 40 series muffler
American Racing Rims Atlas Polished
MAC Cool air Intake kit.
Nerf Bars
Ventshades
Custom Sun Roof
Herculiner Bed Liner
White Face Gauges w/carbon fiber- overlay
------------------------------------------------
Poineer DEH 2200 Head Unit
4 Infinity Reference 5752 5X7's 2 way
2 JL Audio 8IB4
JL Audio Vantage Box
Rockford Fosgate Punch 600a5 amp

Near Future Mods
Superchips Chip

Future mods


Projector Headlights
Billet Grill

http://www.f150online.com/galleries/....cfm?gnum=1656
_____________________
1999 Ford Expedition 4x2 4.6
Silver. Bone Stock
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  #8  
Old 08-15-2002, 07:58 PM
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Join Date: Aug 2001
Vehicle: 2000 Ford F-150
Posts: 19
carb cleaner

carb cleaner eats plastic... your intake is plastic, true the valve isn't but once you spray carb cleaner into the valve, and reinstall the valve, WHERE DO YOU THINK THE CARB CLEANER GOES...

THAT'S RIGHT FOLKS... RIGHT DOWN YOUR INTAKE... FORD SAYS DON'T USE CHEMICALS NOT BECAUSE IT'S HARMFUL TO THE VALVE... BUT TO THE PLASTIC INTAKE MANAFOLD.. so ask yourself this question... do i buy a new valve,,, or a new intake and a new valve after i burn a hole in my factory intake...
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  #9  
Old 08-16-2002, 12:16 AM
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hmm

Generally Speaking.

I'd hope you would let all the carb cleaner evaporate, after you have cleaned the valve before you decided to re-install it.

Scott
__________________
1997 F-150 Extended Cab 4X4
4.6L V8
Flowmaster 40 series muffler
American Racing Rims Atlas Polished
MAC Cool air Intake kit.
Nerf Bars
Ventshades
Custom Sun Roof
Herculiner Bed Liner
White Face Gauges w/carbon fiber- overlay
------------------------------------------------
Poineer DEH 2200 Head Unit
4 Infinity Reference 5752 5X7's 2 way
2 JL Audio 8IB4
JL Audio Vantage Box
Rockford Fosgate Punch 600a5 amp

Near Future Mods
Superchips Chip

Future mods


Projector Headlights
Billet Grill

http://www.f150online.com/galleries/....cfm?gnum=1656
_____________________
1999 Ford Expedition 4x2 4.6
Silver. Bone Stock
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Old 08-16-2002, 12:16 AM


 
 
 
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