Most of this happened to the car shortly after 20,000 miles.
Engine block separated on one side.
Air conditioning thermostat had to be replaced.
Replaced EGR valve.
EGR valve gasket DPFE sensor.
EGR vacuum regulator.
Replace solenoid control valve recirculation EGR valve.
Vacuum EGR control.
Replace serpentine belt.
CHECK ENGINE LIGHT appeared at 40,000.
AMP LIGHT appears at 43,000.
Inherited my father's car at 18,000 in 1998. Father took very good care of the car. Since then, only drive car to/from work. Problems started after putting 20,000 on car. Love this car. Body integrity is good. Auto shoulder straps annoying and do not adjust to tighten passengers. Starts well in winter climate. A nice car for in-city driving. Not for long-distance trips. A/C stopped working after 8 hours of non-stop use.
Ya I've noticed a few of those things have gone wrong on my topaz. I have an 89 and I noticed that yes after putting about 20,000 miles on it my vacuum seal went, and both of my CV Joints have blown. My drivers side just broke a couple months ago and I could never figure out why all of my transmission fluid was pouring out all over the ground. I just replaced my transmission pan and filter and then realized my CV Joint went. Since that happened, my transmission was running dry and ruined it. I've had a lot of trouble with this car too. But it is a comfterable car.