surging idle with a/c on

[2000V8]

started doing it about a month ago, havent changed anything.
only does it with the a/c on, surges between about 550 to 950 then onece in a while it will shoot up to 1500 rpm.

after reading some related idle problem posts, I think im going to change out my iac. where do i get one? hows the install? where is it exactly? thanks for any help.

car just has basic bolt ons, 65,000 miles

 

[Kilgore Trout]

Never hurts to clean/replace IAC. But I really think you are low on freon which causes a/c to constantly cycle on and off. Have that checked.

 

[2000V8]

Im getting my oil changed, spark plugs, and fuel filter replaced next week. Ill have them check my freon level to. Its not something I can check my self is it?
a/c blows ice cold tho.
Where can I buy a new IAC?

 

[timeless2]

Ford Parts Counter.

 

[Kilgore Trout]

Ford Parts Counter.

Is that a website?

 

[timeless2]

Is that a website?

 

[2000V8]

ok I just reset the computer and it has goten much worse. now the dies as soon as i start it with the a/c on. and it surges between 450 and 550 with the a/c off and if i blip the gas it dies. this really sucks

 

[2000V8]

ok the iac is the little black box with the two screws on the t/b? and im suposed to clean it out with brake cleaner right?

 

[1stang2c]

You need to check your r34. My 99 cobra did the same thing until I recharged the a/c. My cobra did it with the a/c and the defrost on.

 

[2000V8]

Is that something I can check/fill myself?