ridethemustanggt

Alot of the time when i come to a complete stop the rpms drop down to about 500 right after a stop. They just drop down and go right up lasting about a second. The idle is fine before and after the drop. It's been doing this for about a week. Its not acting like its going to die or anything, but I'm just seeing if its a sign of something starting to go bad.

03BottleFedGT

mines done that since i bought it never really had any issue with it

usermst9673

try cleaning the idle air control (iac) it might be built up with carbon. It fixed my idle problem which was like your describing

Evenexchange

IAC clogging up a little bit. Run some seafoam and clean it by hand.

01GTDropTop

Where can you "inject" the seafoam in our cars. Most cars is through the brake booster vacuum hose, but we don't have those.

Where is the BEST spot?

Sorry, not to threadjack, it just presented itself.

THANKS,
Phil

reznap

I always thought this was great, it's like Ford wants us to supercharge...

disposablehero27

have the same problem even to where the car shuts off, cleaned the IAC out by hand, pretty bad, cleaned it out real good, issue still not resolved. no noticable change after cleaning IAC. for the record.