Ford Festiva Engine Low Power

My 1999 Ford Festiva Is Regularly Serviced, However It Has Started To Have Problems With No Power To Take Off After Slowing Down And Idling...

When Driving My Car Pulls Not To Any Side But Rather Like Its Going Up A Steep Hill

Start, Idles, Runs Okay For A While Then Starts Missing And Loses Power. Has New Fuel Pump, Plugs, Wires, Cap, Filter, Air And Fuel.

Recently (less Than 1 Month) Car Began Accelerating At What I Would Say Is Half The Rate It Normally Used To. I Took It To A Mechanic And...

Car Runs Great Beside Going Up Hills. Car Sat For Almost 2 Years While My Dad Rebuilt The Engine,but Unfortunitly My Dad Has Pasted Away And...

1989 Ford Festiva The Belt Running To My Alternator Keeps Getting Loose. After I Tighten It The Car Runs Fine. But Once It Gets...