Long story but here it goes:
After owning this car 6 years with nearly no trouble I gave it to my daughter to drive as her daily. She is a very careful driver, and one night she called, said the car had died, and that the flashers wouldn't even come on. So I grabbed my jump pack and headed out. It did restart, so the next day I replace the battery with a new Interstate. However, as I drove it home I noticed that if I tried to use the "kickdown" function it would really mess with the drivability. Missing, lack of power, etc. The more I pushed it the worse it got until I was literally idling the last few blocks home. At this point I checked the alternator output and found it putting out 18.5 volts. This was confirmed on Napa's tester as well. I replaced the alternator. It ran great for a couple days but as before I slowly started to loose the kickdown function and it would only hold top speed. I replaced the tank strainer and fuel filter a and inspected the ignition system. I'm not sure where to go from here. I'm thinking that between my daughter not opening it up much, and it sitting a lot it may have a pressure issue. Suggestions?