.054 -- same for all years
.054
check your plug wires, then your coil packs, then your ignition module.
.060"
The spark plug gap for a 2003 Buick LeSabre should be set at .060 inches. The best spark plug for this vehicle would be an Iridium plug.
2000 Buick century gap for spark plug 3.1l
Faulty plug wires or bad coil or coil wire.
As far as I've read (check dealer for accuracy) 4cyl 2.5L is .040
The spark plug gap setting on a 1994 Buick Century is .055 inches. A new spark plug will come preset from the factory and should not need adjusting.
The 1991 Mercury Marquis spark plug gap is .034. Most spark plugs will be pre-gapped by the spark plug manufacturer.
The Spark Plug Gap.060 (In thousandths of an inch)
what is the setting of the spark plug gap for a 1991 chev caprice .035
Spark plug diagram for '98 buck regal
plug gap is .060