1996 Toyota Camry Cylinders

I have no idea what you are talking about. BUT, I am guessing you are talking about the spark plug wire. I guess it is cracked and it won't stay on the spark plug all the way. So what you have to do is get new spark plug wires. If you don't the vehicle might misfire and this will cause damage to your catalytic converter. The click you are talking about when you try to start it is most likely coming from the starter. You either have to replace the contacts in the starter or replace the starter. I'm just guessing on what you are talking about. Please let me know if I am right or not.

If your replacing the spark plugs and wires your self your probably talking about 50-100 depending on what area you are in and how good of parts you want. If you go to a shop probably at least $200 to have them do it. You can't just buy one spark plug you have to buy all 4. That is unless you find a parts place that sells them 1 at a time and you find the right one. HTH.