Follow the plug wires from the distributor.
fixed it was spark plug wires.
Check to make sure the wires are all tight and you have them in the correct firing sequence. Also make sure you put the correct plugs in.
To replace spark plug wires on a 3300 Oldsmobile engine, open the hood and remove the wires from the end of the engine. The number of spark plug wires most often corresponds to the number of cylinders your engine has.
Disconnect the battery, remove the spark plugs wires and boots and remove the spark plugs. Put in the spark plugs, replace the spark plug wires and boots, and connect the battery.
Wires may be old and possibly porous and spark is jumping through Replace plug wires
No you do not need to replace any plugs at all when replacing wires.
On my 94 voyager with the 3.0L the cylinder numbers are stamped into the heat shield located under the spark plug boots - you won't see these numbers with the wires on, since it obscures the stamping. On my van sequence from Left to right is: Front 2-4-6, Rear 1-3-5.
how to replace spark plugs wires 1992 buick century v 6 3300 stationwagon
Replace high tension coil wire. Probably time to replace all the spark plug wires.
One at a time!
Pull them out and replace them one at a time.