one at a time and make sure you mark em, that way you don't get lost
you would follow the spark plaug wires from the disributor to the spark plug and replace it. Spark plug wires are different sizes in length depending on where they go. Also make sure they are in the right order or your engine might run rough.
You will not go wrong installing the OEM AC/Delco plugs, just like came in the car. This is what I would install in a GM vehicle.
I would replace the spark plugs after 50K, the wires and plugs again at 100K.
you would take out the spark plugs still attached to the spark wires. place the metal of the plugs onto a grounded metal spot. make sure they are not touching in order to prevent damaging them or blowing fuses.
No, not unless your connect the plug wires wrong or one of the new spark plugs was bad.
There is to much heat from the exhaust manifolds. There should be medal factory heat sheilds bolted to the exhaust manifolds to pervent this from happening. INSTALL HEAT SHEILDS
Probably the spark plug or spark plug wires, I would try that first.
Yes, check the connection to the starter and the spark plug wires first and replace if needed.
If you mean, what if your spark plug wires were crossed up, the engine would run terrible if it ran at all.
Bad distributor or rotor or bad spark plug wires would be my first culprits.
To change the spark plug wires on a 97 Buick LeSabre, first pull the wires loose from the plugs. After these are removed, pull the wires loose from the opposite end and replace them.