The EMS brakes lock up.
The oil pressure sensor went out.
The driver's side window gear is stripped
Other small things..
I love the seats and roominess in the car.
I also like the body styling.
I didn't like the stock rims on it (I got a set of aftermarket 20" rims for it).
I love the takeoff and braking of my G.P.
It handles very nice too.
I'm thinking of buying another 1990 Grand Prix.
Overall it the best car my grandpa ever brought home...
Do those 20 inch rims you have fit close on the car or does it have enough room for you to hit a bump.