Ok, its an '03 and all I touched was the plugs. How do I check the gap and what would I be looking for in the wires?
You will need a wire type spark plug feeler gauge to check the gap. If the plugs don`t have multiple electrodes on the circumference of the base, but ony 1 L shaped electrode close to the center electrode, you can also use a coin shaped, ramp type feeler gauge. (Bottom one in link below.)
If you have a Clymers manual there are pictures in chapter 3 on page 97, that show you how to use the gauge.
Table 6 at the end of Chapter 3 gives the gap as 0.8-0.9mm, or (0.030 -0.040 inches, read as 30 to 40 thousandths of an inch).
Here is a link so you can see what you need. (The flat feeler gauges are not used for plugs, but for other jobs.) http://www.mytoolstore.com/kd/kdfeel02.html
Try checking your plugs and wires for spark by grounding the plug base against the engine while pressing the starter button with the ignition turned on. Any that don`t give a bright spark, exchange the new plug for one just taken out and try again. If you still don`t get a bright spark, you may have a bad wire or connector in the boot.
Disconnect the plug wire from the ignitor and do a continuity check with an ohm meter. If you get infinate resistance the wire is broken. I can`t find any referece to what the resistance should be for copper core wires that the vn has. (Carbon core wires on my `92 Olds should be 5000 to 7000 ohms per foot, I believe.) If you get any resistance reading, other than infinite, you know the wire is not broken.
Anyone else know what resistance reading we should get on the plug wires?