Yes. One (emer flasher) is on the terminal block under the dash to the left of the steering column and the other (turn signal) is above it to the right. Need to remove dash panel to access.
The 1991 2.2 Plymouth Sundance America has a oil capacity of 4.5 Quarts
If the dash light on a 1991 Plymouth Sundance does not work, this may be because it is grounded. Another reason may be busted fuse.
That car does not use a maf sensor.
under hood,usually in front of alternator,beside radiator.
6 x 8 Rear 5 1/4 front in the doors
on the frame rail underneath the passengers side just forward of the rear tire.
The engine computer handles the voltage regulator duties. The computer is behind the battery.
You may find that the turn signal switch in the steering wheel is bad.
It's on the exhaust system just behind the engine. The easiest way to get to it is to go from underneath the car.
I believe the turn signal and hazard flashers are in the fuse box on 1991 to 1994 Ford Explorers
The signal light circuit is separate from the emergency flashers. First check for a blown fuse, then check the signal flasher relay.
When parts stop working, a diagram can help pinpoint the cause. The diagram for the turn signal lights on this car can be found in its maintenance manual.