Hey,

Try cleaning your IAC valve. Use throttle body cleaner or MAF cleaner. If you do this don't forget to clean the inlet tube to the IAC valve. It should start just before the TB and end at the IAC valve.

__________________
(SOLD) 2003 Ranger 4.0L V6 FX4
2001 F150 Supercrew Triton V8 (DD)
2008 Fusion 3.0L SEL V6 (my baby)
1992 Taurus SHO MTX (my toy-almost Supercharged)
2004 Nissan Murano SL AWD (Wife's car)