Ok I have a question my car will drop down to about 400 elms here and the when I come up to a red light and died on me one time when I was pulling into a parking spot and once again when I was backing out and im thinking it could be the alternator but im not a tech so I don't really know can anybody help me out

 

I bet it's the IAC. Pretty common on fords. Pretty cheap and very easy. Right on front of the throttle body. Has a tube going to the intake hose as well as a two wire elect plug

 

Agreed. Search "clean those throttle bodies".

 

when was the last time you did general maintance on it? Air cleaner, spark plugs, fuel filter?

 

Are you talking about the tube with the black box on it what exactly does iac stand for lol

 

Idle Air Control Valve: http://www.2carpros.com/articles/how...ol-valve-works
scroll down for the description and symptoms and such.

And as asked before: Cleaned your throttle body lately?

 

I have the same problem and mine (2000GT) is definitly the IAC. All i have to do it tap on it and the idle comes right back up. Have someone keep the car idling and tap on it sometimes it will unstick and go back to normal. That is only a temp fix though.
My fathers SN95 had the exact same issue and once it was replaced it was good to go. I haven't done mine yet.
about a $50 part.

Here it is on the motor


you can get the part from Advanced auto or similar. Don't get it from ford it will cost you almost 3 times the price.
It's got a little electric selenoid on it and that can crap out.

 

Thanks for all the replies im going to clean it tomarrow cause its starting to **** me off

 

did you get it running?

 

I have a 2000 gt and mine was doing that too... I gave er a seafoam treatment and no problems since

 

What's seafoam and where can I get it I cleaned the iac and the throttle body and it runs better but still does it here and there

 

Did you retrain the computer after? You have to do that, it 'learns' to deal with the dirty TB, so you have to unlearn it.

 

How the f**ck do I untrain the computer

 

Unplug the battery and wait 30 minutes.

 

Thanks will do

 

Seafoam can be found at most auto parts stores....unhook a vacuum line and let the suction suck about half the bottle into the intake. Then shut off the car. Let sit about 30 mins then take it for a high revving drive. It cleans everything on the intake side including valves and combustion chambers. I do a seafoam treatment every 3rd oil change. If you put 1/3 of the can in your intake vacuum line.1/3 in the oil and 1/3 in the gas it cleans everything. It dissolves sludge in the crankcase...and I suggest doing it at night. The smokeshow that comes from the tailpipe after you do the intake is unreal. I have done back to back seafoam treatments just to see if it's the seafoam that causes the smoke or if it's carbon and crap and after the second try there was almost no smoke or tailpipe crud so it has made a believer out of me....and when I did my crankcase I changed the oil about 500 miles later and there were actual chunks of crud that came out....my car runs as good as new... And it cleans parts to like new shape

 

Cool thanks for the info ill try it

 

No problem...anything for a fellow mustanger...and I wouldn't suggest it if it didn't work