first you need to pull the serpetine belt loose then there are three bolts one toward the right side(front)of the engine and two toward the left side (back) then remove the wires -install in reverse order
Repair the alternator to battery connections or replace the battery.
Where is the rear washer fluid reservoir located on a 1991 Pontiac Transport
How do you replace starter on2.3 cy 1991 pontiac grand am
Inside the alternator.
To replace the alternator regulator on a 1991 Ford Tempo, first disconnect the negative battery terminal to ensure safety. Remove the alternator from the vehicle by disconnecting the wiring harness and loosening the mounting bolts. Once the alternator is removed, locate the regulator, which is typically mounted on the back of the alternator, and replace it with the new unit. Reassemble the alternator, reinstall it in the vehicle, and reconnect the battery terminal.
you need a new alternator.
http://www.avigex.ca/xport/reargate2.jpg http://www.avigex.ca/xport/reargate.jpg
Wiring for 91 Pontiac Transport: http://www.auto-olds.ru/PONTIAC%20TRANS%20SPORT%201991.pdf
Disconnect the 1991 Regal battery. Remove the alternator belt and wiring. Unbolt the alternator and install the new one. Reconnect the wires, install the belt, then reconnect the battery.
About 200 bucks. Its about 80 to 130 bucks for the alternator, and its really easy to replace. Sits on top of the motor.
check the ignition modulator under the distributor cap
You must remove the fuel tank.