Answers that begin with "buy a repair manual" are rarely helpful. I'm sure that we all know that we can purchase a manual. If everyone purchased a manual helpful web sites like this one would be rare. I am assuming that you are asking about the electrical system and not the firing order. If so, in this case, purchasing a manual (or visiting your public library) might be your best bet. The Haynes Repair Manual covering the 1991 Buick Regal (and other models and years) includes 59 pages of electrical system diagrams. I want to help. However, if you could be more specific I may be able to help answer you question. Eddie
autozone.com
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.
A service manuel is the only place I have seen wiring diagrams...
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how much does a tune up on a 1995 buick regal 3.8 cost
1992 is 225/60/16 1991 Buick Regal Limited 3.8 V6 is P205/70/R15.
A wiring diagram, for a 1991 Pontiac Firebird, can be obtained from most General Motors dealerships. The wiring diagram can also be found at most auto-parts stores.
Ebay has several most of the time, search 91 Regal
Hazard light on the 1991 Buick Regal is on the right side of the steering column. It is an unassuming black rectangle which slides up to activate.
Yes, This is the system it has. DELCO POWERMASTER 3 ABS (4-wheel, Integral) 1989 to 1991 Buick Regal
The sedan weighs 3,335 pounds
Around 3300-3500 lbs