If both sides (right and left) don't blink on and off, the blinker "can" may be the culprit.
mine does not have one
I believe they are located on the starter.
Curb weight, 3,309 lbs
The original wheel size is 15"
Regular ethylene glycol antifreeze............
It uses a distributorless coil pack and a crankshaft trigger sensor.
I just purchased a 1990 Buick Riviera with 45,000 on it for my daughter. However, I did have a brief period that you discribed with the car stalling out. I don't know if this will help, but I just read at another site, that it may have a faulty idle air control.
1990 lincoln town car
Kind of bolts- they use both metric, and SAE so you will need a full toolset for both.
inside , right by the drivers right calf, it's hidden behind a pull out panel
Riviera Gardens was created in 1990.
you have two buttons under the head light switch one will do the job if broke use tooth pick