Why does my ford explorer stall out when I take it out of park?

Why does my ford explorer stall out when I take it out of park? - 1

Because the idle is to low and that is because the throttle body and air by pass valve are dirty.

Jacob, go to a parts store and have the codes pulled. Very likely your check engine light is on or thereis a stored code that doesn't trigger a check engine light. Start from there and go with whatever the results are.

Next time tell what year it is, how many miles are on it, which engine option it has, and whether it's RWD or 4WD.