99 ford explorer will not idle

i can start and keep car running if i hold down the gas as soon as i let go it stalls i cleaned out the throttle body and blew out the egr i dont have any more ideas i need help please

IAC valve may be shot. It controls the idle (Idle Air Control). If it doesn't open at an idle the car will stall. It is very common for this to crap out.

Definately the IAC. Don't go buying a new one though. Remove it and clean the plunger area. Flush it with oil. I used engine oil but I've read where people use WD-40 with same success. What happens is the plunger gets hung up and won't open to allow air in for idle. It is possible your IAC motor is bad, but unlikely. Regardless, at 50-60 buck for replacement, it's worth a cleaning. I cleaned mine and am going over a year now with no issues. Cold weather usually triggers the problem of plunger sticking. If need be, free the plunger up with a gentle push of a small screw driver.

The Same Thing Happened To Me This Morning. I Started The Car And Let It Heat Up For About A Good 15 To 20 Minutes, Then I Put It Into Reverse Once I Put It Into Drive It Stopped. I Could Not Turn The Car Back On. People Are Telling Me That It Could Be A Vaccum Leak Of Some Sort. Can Someone Help Me????? Thanks