Originally posted by mamisano:
Chris...Can you shoot me an email briefly explaining what I need to do to clean the IAC. I am fairly competent under the hood, so minimal explanation should be necessary.
Thats why I love this site 
Regards,I have done it 2 ways. The quick and dirty approach is to remove the IAC tube and spray some tuneup cleaner (I use Ford) into the IAC intake hole while its running. You may need to rev it a bit to keep it running. Then let the revs drop and let it stall. I let it sit for a few minutes then reconnect the tube.
The second better approach isn't too much harder. I remove the IAC to clean it. There are 2 bolts. The top one is easy but the bottom one is a bit harder. I removed the brake booster vacuum line to make access easier. Watch out that you do not loose the gasket. When its out just spray in some tuneup cleaner and let it sit. I repeated this several times until the fluid was coming out clean. Then reinstall. Generally this lasts me for 4-6 months before I start to notice a slow return to idle. If this doesn't help you should probably just get the IAC valve replaced.
// Chris Root
// '99 SVT
