I have a 4.6 with 58k miles

Every now and then when I start the car it will fire up but immediately idle very very slow and quit. tonight it did it 2x in a row.

It doesn't happen all the time and it doesn't appear to be related to engine temp.

No SES light and no other signs of problems


Any thoughts on what may cause this and what I can do to correct it? I was thinking injector cleaner.

 

mine used to do this it was my choke. but mine only did it when cold

 

Engine cold or outside cold?

Its under 35 degrees here now. Mine seems to do it either when the engine is cold from say an overnight parking, but it also sometimes does it after I drive across town, fill up with gas and try to restart the car.

 

Sounds like the fuel pump is dying to me.

 

It did it when the car was cold.

 

99.44% of idle problems are Idle Air Control valve related--they call it that because that's what it does...

 

Thanks Cliff

$52.00 part. Just replace it or can I clean it?

 

Some have reported success cleaning it with TB cleaner, however most often that is at best a temporary fix.

Ford says:

 

As usual Cliff. You're the man! Thanks