I pulling it I'm my garage this afternoon

 

brew can u help me with a problem i got a 97 f150 4.6 just did a tune up on it plugs wires air filter oil such such..didnt drive it for about 2 months had knee surgery..but anyways drives and runs fine till i go to stop or slow way down to make a turn it wants to stall out and has stalled out..never did it before i parked it 2 months ago...any ideas ?