Backyard Mechanic

I have a 1998 F150 4x2 4.6L. The engine stalls at low idle when shifting from Park or Neutral into Drive and Reverse. It starts fine in Park and Neutral and runs okay once the throttle is depressed. It will also stall when stopping at a stop sign or traffic signal. Anyone have any suggestions as to what the problem might be.

NGM

Clean the throttle body and IAC motor. I reccomend a BG inductiojn service too.

Just thought of something else. Does it feel like popping the clutch when it shuts off or does it just die?

Backyard Mechanic

It just dies. Gives a little of what sounds like a 'carbon knock' as it's dieing.

whitecrystal1

Welcome Backyard

Triton v8

Welcome!!

NGM

If cleaning the throttle body dosen't fix it. Attach a fuel pressure gauge to it and watch it when it dies. See if the fuel pressure dropps off then it dies.