The 1993 GMC spark plug wire distributor wire placement diagram can be obtained from most General Motors dealerships. Most auto-parts stores will have the diagram.
A spark plug wire replacement diagram can be found on GMC forums. It can also be found in the engine manual available at many auto store.
http://autorepair.about.com/library/firing_orders/bl-fo-2442.htm This is the spark plug wire diagram. It shows the firsing order and the placement of the plug wires.
Coil or ignitor may be bad. Bad ground also
spark plugs wiring diagram
spark plug gap for 1994 gmc jimmy
Spark plug diagram for '98 buck regal
== == check that you are getting power to the distributor. i am assuming you are talking about a earlier model vehicle Have you checked the ecm relay? maybe the pickup coil assy.
V8 or V6?
wiring diagram for a 1995 Pontiac fire bird 3.4 spark plug wiring diagram?
When changing the spark plugs for the first time it is important to have a diagram. A spark plug diagram of a 2003 Land Rover Discovery can be found in its maintenance manual.
The 2001 Lincoln Navigator spark plug diagram can be obtained from most Lincoln dealerships. The spark plug diagram can also be obtained from most auto-parts stores.
You won't need a diagram if you change one spark plug wire at a time.