1999 Ford F150 engine dying at idle

For the last couple weeks I have been having increasing troubles with my engine dying at an idle. The engine will die once it reaches an idle if no throttle is applied. I have replaced the fuel filter, used two bottles of fuel system cleaner, cleaned the butterfly intake valve, and cleaned the mass airflow sensor. I have also noticed that there is a small ticking noise on the passenger side of my engine, that increases in speed and volume once the engine is revved up. Please help