The oxygen sensor, Radiator, and various electrical components have failed on my car within the 10,000 k's that I have owned the car.
After I bought this car, I lost all faith in it. Everything I listed above failed all at once and nearly caused an accident. However, after I repaired the car everything seems to be running fine, but I still lost trust in the car. I find myself second guessing the car on every turn and stop.
I won't buy another car from Ford because I've had nothing but terrible service. After a while of frustration with the dealership I decided to find another shop that would help with my problems. Saturn was by far the best dealership; they gave outstanding service to my car.
I have an 87 Ford Tempo as well. I hate the car more than I've ever hated any other vehicle. I went through half a dozen alternator belts within a month or two of owning it, then replaced the whole alternator. It ran well for about a week. Then, it wouldn't start in cold weather. Just this past week it was actually functioning for once, until it went crazy. The RPM gauge read 4500 in PARK, the brakes wouldn't work, and I found myself going 35 mph on flat roads without touching the gas. Today, it seems that it won't start AGAIN and I'm running out of things to fix. I'd advise anyone who reads a review stating that this car is great for a new driver to disregard and keep looking! It's unreliable, unsafe, and a general pain to keep around.