Blown bulb.
If both sides (right and left) don't blink on and off, the blinker "can" may be the culprit.
There is a long bolt on top of the headlight/blinker assembly. Remove this bolt and slide the entire headlight/blinker assembly out just enough that you can see the bulb socket. Twist the socket and it will pop right out.
The bulb.
a bad blinker bulb. replace the bad one and it'll blink fine.
If you mean it stays on and does not blink then check the other turn signal bulbs on the right side front/back. If it blinks but does not turn off when you make a turn then the problem is in the steering column canceler.
The power steering reservoir is located low behind the right side of the motor very close to the fire wall on 1998 Buick Lesabre.
10w30 says it right on the oil cap.
Refer to dash removal of a '94 Lesabre. The only difference is you have to remove a the glove box and the vent to the right on a '93.
right next to the oil pan, below car
94 buick lesabre was right at the change over( obd1 to obd2) some have an obd2 connection with an obd1 computer. this can only be read by buick garages. go to auto zone or checker auto and they can tell you.
The 1997 Buick LeSabre mass airflow sensor is located on the outside of the air intake housing. The sensor can be found on the right hand side of the air intake housing.
under the radiator and cooling fans, right in the middle.