Starter failed at time of purchase, Which is difficult to replace.
Speedometer failed just recently, yet to be fixed.
This little Geo has been a god-send. It handles the road like a vet, has plenty of pep for the engine size and auto transmission, and yet uses so little fuel it's incredible.
The entire interior is holding up wonderfully, The engine you can JUST barely hear when standing right next to it.
All in all, a wonderful car that's dependable and yet still fun to drive.
I have a 1993 geo prizm too and my speedometer went out like at 110,000 miles also. I took it to the chevy dealer to get it fixed and it didn't work!!! After $1600.00 I decided to give up and drive my truck instead. It's kinda hard to drive it without knowing how fast you are driving. My door handle handle broke too and I have yet to get it fixed also.
The speedometer problem could be your speed sensor has gone out.
I have a 93 prizm and my speedometer recently went out. It happened after taking off faster than normal. After reving the engine up and disengaging the clutch, the speedometer jumped up to around 30 or 40 mph then dropped to zero. Now however fast I go the speedometer registers around 30 mph. I removed my sensor (it has no cable) and it looks fine. I am going to get some wiring diagrams and see if I can check the wiring and or speedometer. If I figure this out, I will post how I fixed it.
Mine has the exact same problem as the last guys, whether I'm going 10 or 60 it stays around 30, what's the deal?