Car struggles going uphill?

This just recently started happening, maybe a few months ago. I have a 1993 Ford Thunderbird and when I go up a hill it drops to about 30-40 mph. I've tried overdrive, drive and first gear nothing works. If this matters, I recently have had my fuel filter changed and I have brand new spark plugs. I do have problems with accelerating (fastest I could ever get the car was 75mph) and problems with the car switching gears. I barely know anything about cars. I just need to know if its worth fixing or to just get a new one. Oh and the accelerating/gear switching problems I have had since I got the car in June 2013.

If the engine runs fine. Then it is probably the tranny.

  • What causes problems starting a car and the engine to misfire going over 60 mph? This problem started about two months ago. I have a 2006 Ford Taurus. So far no mechanic can figure out the problem. They have replaced all of the spark plugs (numerous times because they keep going bad), an engine coil, the crankshaft position sensor, the battery, did a tune-up, ran a $100 diagnostic test and still the problem occurs. Anyone have any idea what could be the problem? I forgot that they also did a coolant flush.
  • Car struggles to turn on? I have a 2004 Ford Ranger 3.0L and it has recently had some issues starting up. It takes several cranks before it starts up the first time. Within 15 minutes of it being turned off, it will start back up completely fine. The battery is new and I have replaced the fuel pump fuses. What exactly is happening? The fuel filter has just been replaced as well The truck seems to run fine once it has started running
  • Got into a car accident at 16. What's going to happen? I'm 16 have my learners permit and my mom was in the passenger seat. I was going to turn left and failed to wait and hit a 2000 ford fzx with my 95 Toyota Camry. My front bumper hit the car in the well area and bent it in pretty bad and dented the wheel well and my car really only has a scratch and a crack in the bumper. We both had insurance he had American Family i had statefarm. What's going to happen to me? And what do i need to do?
  • My tires in car keep going flat Just bought a 2014 ford focus in December. Love it. Last week, i got a flat in the front passenger one. Got a new tire, drove great for a few days. Today, the light went on indicating that the pressure was low, but in a different tire. Stopped at a gas station, had them fill them up, light went off, drove home fine. Now i go outside a few hours later to run to the store and the tire is flat! There's no holes in the tire once my mechanic looks at it.