WHAT YEAR??
Click the link.
When changing the spark plugs, a diagram comes in handy to ensure a person is doing everything properly. For this car, the spark plug diagram is found in the cars maintenance manual.
Firing order for 98 Oldsmobile intrgue: 1-6-5-4-3-2
Spark plug diagram for '98 buck regal
You fail mention which engine. Look at the link to the right and choose the correct engine.
You won't need a diagram if you change one spark plug wire at a time.
wiring diagram for a 1995 Pontiac fire bird 3.4 spark plug wiring diagram?
http://www.buicks.net/shop/tuneup.html
1-6-5-4-3-2
You can obtain a 1995 Chevrolet 1500 pickup truck spark plug wiring diagram from most Chevrolet dealerships. Many auto-parts stores will supply the diagram, without charge.
spark plugs wiring diagram
with a spark plug sockett